IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 6 April 2009 (all times are UTC)
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| 06:09 | * cyberorg offers Nubae kiwi-ltsp live DVD :) | |
| 06:11 | <Nubae> hi cyberorg
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| 06:11 | <cyberorg> hey, whats up?
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| 06:11 | <Nubae> I have to read up on SLES for my new job
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| 06:12 | so forced to use SUSE at work... maybe it will grow on me
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| 06:12 | <gate_keeper_> hey guys, i have a small problem ..
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| 06:12 | <cyberorg> you'll love it, there is nothing better than that for servers :)
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| 06:13 | <gate_keeper_> after updating the kernel in the clients root
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| 06:13 | thin-client is booting and fall in busybox
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| 06:14 | <Nubae> Yeah, guess I have to embrace yast :-) for most setup tasks
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| 06:14 | <gate_keeper_> mount: Mounting /dev/nbd0 on /rofs failed: No such device ... etc etc
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| 06:15 | <Nubae> hmm sounds like a familiar error
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| 06:15 | <cyberorg> Nubae, i rarely use yast, you can work with config files if you are comfortable with that, some stuff like ldap, mail-server config is extremely trivial with yast
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| 06:15 | <Nubae> yeah thats what I read... what u using for package management?
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| 06:16 | <cyberorg> Nubae, zypper
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| 06:17 | <Nubae> cool... it seems the most logical in terms of commands and the way its layed out
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| 06:17 | <cyberorg> Nubae, but first get the live DVD we made, i am quite proud of it :)
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| 06:17 | <Nubae> well, I have to install a version of suse at home anyway for practice
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| 06:17 | so I will
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| 06:18 | <cyberorg> it is LTSP as it should be ;)
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| 06:18 | <Nubae> we shall see... my previous experience with opensuse was not a good one
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| 06:19 | <cyberorg> things have improved a lot since last year, we are in "it just works" mode :D
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| 06:19 | <Nubae> u have a link for download?
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| 06:19 | <cyberorg> get the live DVD http://download.opensuse.org/repositories/Education/images/iso/
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| 06:20 | <alkisg> gate_keeper_: ubuntu?
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| 06:20 | <cyberorg> other isos are rpm package addon containing Education repo
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| 06:20 | <gate_keeper_> 8.04
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| 06:20 | <Nubae> ok
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| 06:20 | <alkisg> gate_keeper_: maybe you have another dhcp server on your network?
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| 06:20 | <gate_keeper_> nope
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| 06:21 | pxe is booting
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| 06:21 | <cyberorg> gate_keeper_, check if you have i386.img
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| 06:21 | <Nubae> that or wrong images served (64 bit instead of 32)
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| 06:21 | <gate_keeper_> img is there
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| 06:21 | ltsp-update-image
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| 06:21 | runned
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| 06:22 | <alkisg> Yeah, e.g. if you had a dhcp server in a router running, the clients would boot with pxe and then hang there.
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| 06:22 | Any weird next-server setting?
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| 06:22 | <gate_keeper_> nope
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| 06:22 | everything is working well,
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| 06:22 | till i install the kernel dpkg
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| 06:22 | after that /boot is updated
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| 06:22 | ltsp-update-kernels
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| 06:22 | also
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| 06:26 | <cyberorg> gate_keeper_, try "modprobe nbd && nbd-client localhost 2000 /dev/nbd0" on the server if the xinetd is working as expected it should work
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| 06:27 | <gate_keeper_> in chroot?
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| 06:27 | <cyberorg> no
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| 06:28 | <gate_keeper_> booting ...
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| 06:28 | damn
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| 06:28 | same
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| 06:29 | <cyberorg> gate_keeper_, did that command work?
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| 06:29 | <alkisg> gate_keeper_: while on busybox, if you run `ipconfig eth0`, what do you get?
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| 06:30 | <gate_keeper_> ipaddress assigned to the client ...
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| 06:30 | * cyberorg peddles live DVD to asmok too :) | |
| 06:30 | <gate_keeper_> i received output from the command: Negotiation: ..size = 616404KB; bs=1024, sz=616404
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| 06:31 | <cyberorg> gate_keeper_, on the client try modprobe nbd && nbd-client serverip 2000 /dev/nbd0
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| 06:31 | <asmok> I have a problem: localapps works with ip numbers, but not with dns/resolv.conf
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| 06:31 | problem is here: https://lists.ubuntu.com/archives/edubuntu-devel/2009-April/002856.html
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| 06:32 | <gate_keeper_> nbd: sysfs_create_file failed! Kernel call returned: File exists Closing: que, ....
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| 06:32 | <asmok> David A. says: Try editing: /etc/default/ltsp-client-setup And then rebuild client
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| 06:33 | <alkisg> gate_keeper_: did you also do `sudo apt-get update` to update the ltsp-server package on the server?
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| 06:33 | <gate_keeper_> yup
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| 06:34 | <asmok> I think it already has a line for right resolv.conf: /opt/ltsp/i386/etc/default/ltsp-client-setup - bindfiles="/etc/network/interfaces /etc/hostname /etc/hosts /etc/syslog.conf /etc/fstab /etc/resolv.conf"
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| 06:35 | <cyberorg> asmok, tried DNS_SERVER=ip in lts.conf?
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| 06:36 | <asmok> cyberorg: no, I will
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| 06:36 | I got this, I just rebuild client: root@ltsp200:~# ls -al /etc/resolv.conf ---------- 1 root root 0 2002-01-08 20:24 /etc/resolv.conf
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| 06:37 | I think this file in chroot is really badly wrong - where it comes from?
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| 06:38 | <gate_keeper_> :/
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| 06:41 | <asmok> cyberorg: DNS works in thin client, just not for localapps - my router/dns is 192.168.1.1 - that is good one server and thin clients
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| 06:42 | <cyberorg> asmok, putting DNS_SERVER=ip in lts.conf should write that in client's /etc/resolv.conf
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| 06:43 | <alkisg> cat <<EOF > /tmp/resolv.conf
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| 06:43 | Should that be /tmp or /etc? ^^^
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| 06:43 | <asmok> cyberorg: Ok, i boot byt tc
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| 06:44 | <cyberorg> alkisg, you need to see the whole function, it might be writing to/from /tmp to the real resolv.conf
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| 06:44 | <Appiah> anyone used webmin to cluster a ltsp setup?
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| 06:44 | <alkisg> cyberorg: I don't think I see anything to copy from /tmp to /etc...
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| 06:45 | asmok: try `cat /tmp/resolv.conf` to see if it's there, and if it's valid...
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| 06:45 | <cyberorg> alkisg, you internet for localapps does not work too?
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| 06:45 | <alkisg> cyberorg: no - I haven't tried localapps, but I have jaunty and I checked ltsp-client-setup...
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| 06:47 | <cyberorg> alkisg, see configure_resolver in ltsp-setup script
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| 06:47 | <asmok> admin-ltsp5@ubuntu-ltsp5:~$ cat /var/lib/tftpboot/ltsp/i386/lts.conf DNS_SERVER=192.168.1.1
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| 06:47 | <alkisg> cyberorg: that's what I'm looking, and I don't see code to write it to /etc. :(
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| 06:48 | <asmok> root@ltsp200:~# ls -al /etc/resolv.conf ---------- 1 root root 0 2002-01-08 20:38 /etc/resolv.conf
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| 06:48 | <cyberorg> cat <<EOF > /etc/resolv.conf
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| 06:48 | search $SEARCH_DOMAIN
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| 06:48 | nameserver $DNS_SERVER
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| 06:48 | EOF
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| 06:48 | alkisg, ^^
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| 06:48 | <alkisg> cyberorg: I got: cat <<EOF > /tmp/resolv.conf
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| 06:48 | In jaunty
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| 06:48 | <asmok> so I have to change that file by hand (chmod 755) and add nameserver 192.168.1.1 - then tc works with dns
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| 06:48 | <alkisg> Maybe stgraber modified the file a bit?
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| 06:49 | cyberorg:
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| 06:49 | if [ -n "$DNS_SERVER" ] && [ -n "$SEARCH_DOMAIN" ]; then
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| 06:49 | cat <<EOF > /tmp/resolv.conf
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| 06:49 | search $SEARCH_DOMAIN
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| 06:49 | nameserver $DNS_SERVER
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| 06:49 | EOF
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| 06:49 | <cyberorg> alkisg, that looks like a mistake
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| 06:49 | <alkisg> Yup, that's what I thought...
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| 06:49 | unless there's code elsewhere that copies it to /etc.
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| 06:50 | <asmok> root@ltsp200:~# chmod 755 /etc/resolv.conf
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| 06:50 | root@ltsp200:~# vi /etc/resolv.conf
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| 06:50 | <cyberorg> asmok, you dont need chmod
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| 06:50 | <alkisg> asmok: boot up a client, and try: `cat /tmp/resolv.conf`. Is the file there??
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| 06:51 | <asmok> root@ltsp200:~# ping ltsp.org
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| 06:51 | PING ltsp.org (70.91.230.211) 56(84) bytes of data.
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| 06:51 | 64 bytes from 70-91-230-211-BusName-Michigan.hfc.comcastbusiness.net (70.91.230.211): icmp_seq=1 ttl=43 time=212 ms
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| 06:51 | OK
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| 06:52 | root@ltsp200:~# cat /tmp/resolv.conf cat: /tmp/resolv.conf: No such file or directory
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| 06:52 | <alkisg> Hmmmm let me try to boot a client of mine and test. bbl.
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| 06:53 | <asmok> admin-ltsp5@ubuntu-ltsp5:~$ cat /tmp/resolv.conf cat: /tmp/resolv.conf: Tiedostoa tai hakemistoa ei ole
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| 06:53 | <cyberorg> asmok, adding DNS_SERVER in lts.conf did not add to client's /etc/resolv.conf?
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| 06:53 | cat /etc/resolv.conf
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| 06:54 | <asmok> admin-ltsp5@ubuntu-ltsp5:~$ cat /etc/resolv.conf
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| 06:54 | search ubuntu-ltsp5
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| 06:54 | nameserver 192.168.1.1
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| 06:54 | admin-ltsp5@ubuntu-ltsp5:~$ cat /opt/ltsp/i386/etc/resolv.conf
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| 06:54 | search ubuntu-ltsp5
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| 06:54 | nameserver 192.168.1.1
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| 06:54 | <alkisg> Ah, there's another script that generates resolv.conf there: /opt/ltsp/i386/etc/rcS.d/S32ltsp-client-setup
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| 06:54 | That one puts it to /etc...
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| 06:54 | <cyberorg> so whats the problem now, it seems to be working
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| 06:57 | <asmok> cyberorg: DNS_SERVER did not help
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| 06:58 | <maginot> morning
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| 06:59 | <cyberorg> asmok, then something is broken there, it should add nameserver 192.168.1.1 in client's /etc/resolv.conf
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| 07:00 | file a bug :)
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| 07:12 | <asmok> alkisg: my setup uses two nics - normal way tc works just fine, only localpass do not find anything by name
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| 07:18 | <alkisg1> asmok: I'll try to see if I can reproduce the bug in my jaunty setup in a while.
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| 07:19 | <ogra> asmok, you need to set SEARCH_DOMAIN and DNS_SERVER
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| 07:19 | DNS_SERVER only wont work
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| 07:19 | * ogra thought that was documented somewhere | |
| 07:21 | <ogra> ogra@osiris:~/Devel/ltsp/ltsp-trunk$ grep DNS server/doc/lts-parameters.txt
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| 07:21 | DNS_SERVER A valid IP unset
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| 07:21 | (SEARCH_DOMAIN) Domainname unset required if DNS_SERVER is set
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| 07:21 | <alkisg1> ogra, init.d/ltsp-client-setup generates /tmp/resolv.conf, and rcS.d/S32ltsp-client-setup generates /etc/resolv.conf. Is the first one OK or is it a bug?
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| 07:21 | (talking about the /tmp)
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| 07:22 | <ogra> rcS.d/S32ltsp-client-setup should be a link to init.d/ltsp-client-setup ....
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| 07:22 | i dont get how you get different values for it
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| 07:23 | * cyberorg pokes ogra to download opensuse-edu-kiwi-ltsp live DVD | |
| 07:23 | <ogra> not really
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| 07:23 | cyberorg, btw, you should really ship gobby
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| 07:23 | i didnt see it in your applist
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| 07:23 | <cyberorg> ogra, ok, adding it :)
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| 07:24 | <ogra> its an awesome collaborative editor
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| 07:24 | <cyberorg> ogra, do check out and give your feedback how everything is, any improvements we can make
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| 07:25 | <ogra> really, i'm not involved in any edu stuff since over a year anymore
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| 07:25 | <cyberorg> ogra, not for edu stuff, just to see how ltsp is on opensuse ;)
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| 07:25 | <alkisg1> ogra, asmok - (1) ok, I got different values because I didn't chroot first, and (2) an update in the chroot fixed it.
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| 07:26 | No more /tmp - only /etc. So it should be ok now.
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| 07:26 | <ogra> right
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| 07:44 | <cyberorg> ogra, gobby added, new image should be up in few hours
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| 07:50 | <Lumiere> gobby is awesome
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| 08:11 | <Nubae1> from what I see others talking about on the list, it seems ltsp-client-setup is not binding /etc/resolv.conf properly, as that ends up being an empty file in the client
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| 08:11 | this is needed for local apps
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| 08:13 | <ogra> thats why its explicitly documented since ages :)
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| 08:13 | <Nubae1> explicitly?
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| 08:13 | <ogra> Nubae1, grep for DNS in lts-parameters.txt
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| 08:13 | it was one of the first entries i did there years ago :)
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| 08:14 | * ogra wishes people would just read the docs | |
| 08:14 | <Nubae1> I dont think everyone looks at lts-parameters.txt
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| 08:14 | especially since we document most of the lts config stuff in the docs
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| 08:14 | so maybe we should put that in the docs too then
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| 08:15 | * ogra thougth lts-paparms wqas pulled into the upstream docs | |
| 08:15 | <Nubae1> was... I guess its not anymore
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| 08:16 | or u mean as an extra file, not within the document
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| 08:16 | <ogra> no, it used to be in the upstream doc directly
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| 08:17 | <Nubae1> hmmm, ok its not anymore
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| 08:17 | <ogra> and we had worked out a convention at the last hackfest i attended that everyone makes sure his added options are added to the file
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| 08:17 | so changes there end up automatically in the doc
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| 08:18 | <Nubae1> right now they are put in by hand
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| 08:18 | how do we change it back?
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| 08:18 | <ogra> hmm, i thought btil had extra added code to the generation script
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| 08:19 | look at the doc generation tools, there was code for merging it once
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| 08:20 | <Nubae1> I think the documentation lts variables may be more up to date than lts-parameters
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| 08:22 | <Nubae> right now, the lts variables are kind of spread out in the documentation, its no trivial task to take that out and replace with auto generated code
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| 08:30 | <maginot> LOCALDEV must be set for pen-drivers and cdroms in client ?
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| 08:31 | <Nubae> I think that defaults to True
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| 08:35 | <maginot> Hmm yeah, I just saw here
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| 08:35 | =)
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| 09:55 | <alkisg> Erm, since Hardy or so, whenever a wrong password is entered in ldm, the reply is "the server did not respond, restarting...".
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| 09:56 | Is this a known bug, or should I file one, or...?
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| 09:57 | <Ryan52> it's a feature, iirc.
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| 09:57 | <alkisg> Ok then :)
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| 09:57 | <vagrantc> uh...
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| 09:57 | <alkisg> I think before the last ssh screen-scraping stuff, it used to display a more understandable message
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| 09:58 | <vagrantc> basically, it gives "the server did not respond, restarting..." for various different error messages. i can't really see how that's a feature.
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| 09:58 | <ogra> its "the feature of deliberate user confusion" :)
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| 09:58 | you didnt get that concept yet, eh ?
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| 09:59 | <alkisg> So that we can file all user-reported bugs under the same category, eh?
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| 09:59 | :P
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| 09:59 | <ogra> no, so that its so confusing to the user that he stops thinking about it :)
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| 09:59 | <alkisg> Heh
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| 10:00 | <ogra> or he thinks so much about it that his head explodes ... which gets you one complaining user less ;)
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| 10:01 | (its definately a bug ... it used to tell you that the pw is wrong though the old code had other issues)
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| 10:02 | <Ryan52> there's no way to know, tho..
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| 10:02 | <ogra> ssh tells you
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| 10:03 | <Ryan52> oh..
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| 10:03 | right..
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| 10:03 | <vagrantc> for a while, we just passed on whatever ssh said ... that seemed to work, but somewhere along the way, that got lost
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| 10:04 | <Ryan52> yes, it still does that until ssh exits.
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| 10:04 | <ogra> well, it says "permission denied, please try again"
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| 10:04 | <Ryan52> once ssh exits (which it does since we only try once), it thinks ssh died in a bad way.
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| 10:04 | it doesn't pay attention to what it said...I wonder if it could.
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| 10:05 | ogra: there is no try again any more.
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| 10:05 | <ogra> it is here ... on ubuntu jaunty
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| 10:05 | i would assume that has the latest ssh
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| 10:06 | <vagrantc> i think it's "try again, and if you're really fast, you'll get somewhere before it logs out"
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| 10:06 | <Ryan52> "-o", "NumberOfPasswordPrompts=1"
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| 10:06 | <vagrantc> i've definitely managed to type in a password with current ldm-trunk after a failed attempt
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| 10:06 | <Ryan52> (from src/sshutils.c)
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| 10:07 | <vagrantc> yeah, i remember looking at the code and being perplexed as to how it could work
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| 10:08 | <Ryan52> ogra: no, the change wasn't in ssh, it was in ldm.
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| 10:08 | <ogra> ah
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| 10:10 | <alkisg> (and btw, if it's possible to read the ssh error, and it is "wrong password", it would be nice if X wasn't restarted...)
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| 10:11 | <Ryan52> alkisg: what else could it do?
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| 10:11 | <alkisg> Ryan52: I think now ldm dies and X is restarted
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| 10:11 | <Ryan52> yes. as opposed to what?
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| 10:12 | <alkisg> To ldm not dying but trying once more for the username/password thing
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| 10:13 | <Ryan52> hm...so put the whole thing in a loop and restart at username? that's a good idea.
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| 10:13 | <alkisg> Yes, but only on wrong passwords, not on "server not responding" etc
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| 10:13 | Because if a server dies, maybe another can be contacted (clustering etc)
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| 10:14 | <Ryan52> really, IMNSHO we should just revert the change and make it an option that can be set for whatever it was needed.
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| 10:14 | * Ryan52 thinks that it was ltsp-cluster that needed it to only try once for some reason, but wasn't at that hackfest.. | |
| 10:15 | <alkisg> I think sbalneav did it because the previous ssh screen scaping was a mess
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| 10:15 | <Ryan52> trust me, this made it a lot more messy :)
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| 10:15 | <alkisg> Heh :)
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| 10:15 | <Ryan52> because at first it waited 30 seconds after you have a wrong password, and then restarted.
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| 10:16 | then I complained and sbalneav wrote a bunch of code to make it work better.
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| 10:16 | :P
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| 10:16 | <alkisg> Yeah, I was part of the complaining comitee :P
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| 12:41 | oifzhozh has joined #ltsp | |
| 12:41 | <oifzhozh> Hi
| |
| 12:43 | In my current ltsp installation ( 5 ) I've got a problem with firefox 3.0. When i Scroll up, it takes me back to previous web page ... :x Is there any solution ?
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| 12:45 | warren has left #ltsp | |
| 12:46 | Nubae1 is now known as Nubae | |
| 12:46 | <Lns> oifzhozh: weird. Does it do that on the ltsp server too?
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| 12:46 | !version
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| 12:46 | <ltspbot> Lns: The current (running) version of this Supybot is 0.83.3. The newest version available online is 0.83.3.
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| 12:46 | <Lns> !distro
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| 12:46 | <ltspbot> Lns: Error: "distro" is not a valid command.
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| 12:46 | <Lns> !distr
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| 12:46 | <ltspbot> Lns: Error: "distr" is not a valid command.
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| 12:46 | <Lns> !dist
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| 12:46 | <ltspbot> Lns: Error: "dist" is not a valid command.
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| 12:47 | <Nubae> sounds to me like your mouse is mapped so that up goes back
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| 12:47 | <Lns> argh... heh nm.. oifzhozh what distro is it btw?
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| 12:49 | <oifzhozh> Lns : no, in my server it don't does it
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| 12:49 | And in others programs like OpenOffice, the scroll up button... scrolls up :p
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| 12:51 | <Lns> oifzhozh: my first (un)educated guess would possibly be that you're not using a typical mouse, or it's not getting detected correctly... I've never had that issue here
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| 12:52 | Nubae could definitely be right too, though iv'e never heard of firefox specific mouse mappings
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| 12:52 | could be wrong thou
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| 12:52 | <Nubae> weird indeed, is there some setting in firefox for mouse gestures?
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| 12:52 | <oifzhozh> Well my mouses are looking typical
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| 12:52 | There are just Usb mouses using a usb-> ps/2 translator
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| 12:52 | <Nubae> its something one switches on and the mouse reacts depending on how its mapped
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| 12:53 | <Lns> oifzhozh: just for kicks have you tried using the mouse w/o the adapter?
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| 12:53 | <oifzhozh> Heh i got a screen/keyboard/mouse switch ( I'm using ltsp to test it in order to deploy it in 200 compz ) but i don't think it could be that
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| 12:54 | <oifzhozh> w/o adpter ?
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| 12:54 | without ?
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| 12:54 | <Lns> oifzhozh: hrm..i've seen strange things with KVM switches, i wouldn't rule it out
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| 12:54 | oifzhozh: yeah
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| 12:54 | <Nubae> hmm in preferences there is an option called autoscrolling, wonder if that might help
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| 12:54 | <oifzhozh> Well I'll try it tomorow :) I'm not at work right now
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| 12:54 | <Lns> of course ;)
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| 12:54 | <oifzhozh> Ok I note !
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| 12:56 | Oh another thing. My boss is stupefied that computers need 32MB video card ram. Most of our computers doesn't have it ... I trie with 8MB And it was unusable. Is there any was to make it work with very "poor" video card ?
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| 12:57 | RobertLaptop has quit IRC | |
| 12:57 | <Nubae> well, turn ssh off and direct X on
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| 12:57 | <oifzhozh> I've done it
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| 12:57 | :p
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| 12:57 | <Nubae> should help, and then u can reduce color depth
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| 12:57 | <oifzhozh> already ( i mean )
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| 12:57 | <Nubae> but generally u need quite a bit of video memory
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| 12:57 | <oifzhozh> Using it with 1280x7xx , with 16Bits and ssh disactivated :x
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| 12:58 | Ok
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| 12:58 | <Nubae> u could use XFCE instead of gnome
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| 12:58 | that might help too
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| 12:58 | <oifzhozh> oh yeah ?
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| 12:58 | 'll try it
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| 12:58 | <alkisg> My labs have 8 Mb videoram and run fine :)
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| 12:58 | <Nubae> yeah its generally recommended for lower end systems
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| 12:58 | <alkisg> (ancient S3's)
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| 12:59 | <Nubae> when u say unusable, what do u mean btw?
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| 12:59 | perhaps u're video memory is shared with real memory?
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| 12:59 | <Lns> it's very hard to think that with "modern" websites alone, one could get away with such little vidram
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| 12:59 | <oifzhozh> I mean i saw many many splits on the screen
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| 12:59 | <alkisg> Lns, why, does firefox use videoram for caching?
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| 12:59 | <oifzhozh> 2 line with colour and 1 with crap :x
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| 12:59 | <Lns> alkisg: a lot of times yes..haven't you heard of the infamous pixmap caching issue w/ltsp?
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| 13:00 | <alkisg> oifzhozh: that's probably a driver bug, not a memory problem
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| 13:00 | <Nubae> hmm, how much ram u using?
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| 13:00 | <Lns> yes..sounds like a video driver issue
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| 13:00 | <oifzhozh> Well
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| 13:01 | I'm using 128mb ram on a PIII - 600Mhz
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| 13:01 | <Nubae> well if the problem goes away with more video ram
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| 13:01 | <oifzhozh> With a crappy old MSI video
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| 13:01 | <Nubae> ah.. well thats the problem
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| 13:01 | 128mb is too little
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| 13:01 | <oifzhozh> For a thin client ?
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| 13:01 | :x
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| 13:01 | <alkisg> Lns, in my box right now with 15 tabs open in firefox, it says that is only uses 2.4 Mb of X memory. And that tells me nothing about the videoram...
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| 13:01 | <Nubae> and the video ram is probably shared
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| 13:02 | yes u should really have 256 mb minimum
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| 13:02 | any less and it will be noticably slower
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| 13:02 | <oifzhozh> well ltsp is not for old computers...
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| 13:02 | <Nubae> especially with 600mhz
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| 13:03 | not for 15 year old computers, no
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| 13:03 | <alkisg> Again mine work fine with 450MHz and 64Mb RAM :) (I'm being annoying, I know :P)
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| 13:03 | <oifzhozh> it's not 5 years lol
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| 13:03 | 9 or 10
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| 13:03 | <Nubae> alkisg: I find it hard to believe they run without issues and fast
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| 13:04 | <oifzhozh> alkisg : it's exactly representating of the computers 'parc at my work :')
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| 13:04 | <alkisg> Nubae: wget -c http://movies.apple.com/movies/dreamworks/kung_fu_panda/kung_fu_panda-tlr1_h640w.mov
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| 13:04 | All my PCs can see this video simultaneously without losing a frame
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| 13:04 | <oifzhozh> what kind of network connexion do you have between your server and your thin clients ?
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| 13:05 | <alkisg> In 1 lab I have real gigabit, in another I have gigabit only until the switch
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| 13:05 | <Lns> oifzhozh: what linux distro and version are you using?
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| 13:05 | <Nubae> well, I'm more talking about apps opening, multiple apps at a time, including many firefox tabs
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| 13:05 | <oifzhozh> Ubuntu 8.10
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| 13:05 | Installed this morning ;)
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| 13:05 | <alkisg> Nubae: openoffice opens in 2 seconds for all my students (again simultaneously - of course I've already opened in a first time on the server before)
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| 13:06 | Firefox again needs 3 seconds to open and scrolls fine
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| 13:06 | <Lns> oifzhozh: have you looked at https://help.ubuntu.com/community/UbuntuLTSP/Firefox3Optimize ?
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| 13:06 | <alkisg> I don't know about multiple tabs, my students don't use them. But they can watch youtube with no noticable problems.
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| 13:06 | <Lns> alkisg: how many simultaneous users>?
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| 13:06 | <Nubae> hmmm, thats pretty nice then, u must be doing something special, cause I've not seen those kind of speeds even with 128mb in the client
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| 13:07 | <alkisg> Well, only 8 :) But that's not a client question, it's a server question, right?
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| 13:07 | <oifzhozh> Yes, pretty nice !
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| 13:07 | <Lns> alkisg: well network bandwidth from server -> client is an issue dealing with how many clients
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| 13:07 | <Nubae> alkisg: how long does it take for your clients to boot?
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| 13:07 | must take minutes, no?
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| 13:07 | <alkisg> Lns, yes, but we're talking about ancient clients, not performance in general...
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| 13:08 | No, less than one minute
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| 13:08 | <oifzhozh> Lol, my boss thought that his mobile coputer ( dsl linked ) would be able to boot ,LOL :x When i mov hard the windows, it takes up tu 20Mbps
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| 13:08 | <Nubae> hmmm... very strange
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| 13:08 | <alkisg> I think 50 seconds from grub to ldm
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| 13:08 | <Nubae> you're definitely the exception
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| 13:09 | <alkisg> I did test it for moths to eliminate my bottlenecks, thought
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| 13:09 | <Nubae> I just demoed a thin can (256mb, 500mhz cpu) and it was far slower than what u mention
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| 13:09 | <oifzhozh> Nubae no, my clients are booting in less than 1minute
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| 13:09 | <Nubae> oifzhozh: yeah, I was talking to alkisg
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| 13:10 | <alkisg> E.g. it took me some days to figure out that the S3 driver was 20 times slower with 24 bits depth than with 16 bits depth
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| 13:11 | And it also has the same bug with the glitches in the lines that oifzhozh said, but it disappears if the resolution is a power of two (e.g. 1024) and the video size is also a power of two. So I have the clients at 1024x768. Go figure...
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| 13:13 | <oifzhozh> erk 1024 detht on 19" screens :x
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| 13:13 | <alkisg> Well, 19" monitors didn't exist when my S3's were manufactured :P
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| 13:15 | <Nubae> well, they probably did, but were unaffordable at the time :D
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| 13:15 | <alkisg> Yeah, just joking.
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| 13:16 | It's a shame that the S3 driver doesn't support xv scaling with images larger than 1024, though
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| 13:16 | Maybe it's a hardware restriction...
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| 13:16 | <Nubae> XV usually is I thought
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| 13:16 | <alkisg> So even if I used 1440xsomething, I'd lose the full-screen-video ability.
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| 13:17 | <oifzhozh> Someone here used thunderbird trought LTSP ? I'm tying to make a /etc/skel witch implements the pop / imap / smtp servers settings
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| 13:18 | <Nubae> Lns likes thunderbird I believe
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| 13:19 | * Lns likes Thunderbird | |
| 13:19 | <Lns> oifzhozh: how you gonna get around the whole "user authentication" issue with skel ?
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| 13:19 | is everyone using the same e-mail account?
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| 13:20 | <oifzhozh> No
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| 13:20 | I just wanna presset the smtp.example.com and the imap.example.com
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| 13:20 | it'll be to the users tu set their name/login/password
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| 13:21 | <Lns> oh
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| 13:21 | hrm, not sure about that one, i'd assume those vars are either hardcoded or in /etc/thunderbird or similar
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| 13:21 | really not sure though
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| 13:22 | <Blinny> oifzhozh: Make a user, set up their thunderbird with your settings, then copy their .thunderbird to /etc/skel
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| 13:22 | <oifzhozh> Well there is a conf file per user un the /home/user/.mozilla-thunderbird/profile.ini
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| 13:23 | <Blinny> (only put in the settings you know apply to everyone, of course)
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| 13:23 | <Lns> Blinny: i think that would cause thunderbird not to run the 'first-run' wizard, which i think oifzhozh wants
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| 13:24 | <Blinny> Oh. I didn't read anything about first-run wizard running
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| 13:24 | <oifzhozh> Blinny it don't works. There is a directory randomly generated where configs ( pref.js ) are places
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| 13:24 | That when i use a skeletal, it's not used ( thunderbird creates another random directory )
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| 13:24 | <Blinny> oifzhozh: Doesn't matter. Everyone can have the same randomly-generated profile name.
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| 13:24 | <Gadi> doesnt thunderbird honor gconf settings like firefox?
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| 13:25 | <Lns> oifzhozh: https://developer.mozilla.org/En/Thunderbird_ISP_hooks might help
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| 13:25 | Gadi: firefox honors gconf settings?! =p
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| 13:25 | * Gadi thought so | |
| 13:26 | * Gadi thought you could set the proxy info in gconf | |
| 13:26 | <Blinny> Lns: That's brilliant. Wish I had found that before doing it the way I describe.
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| 13:26 | <Gadi> and make it system wide
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| 13:26 | <Blinny> Gadi: Also, /etc/firefox3.0/pref/firefox.js
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| 13:26 | <Lns> Gadi: maybe proxy settings alone, not much else though
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| 13:27 | <oifzhozh> Whell this link is very interesting Lns
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| 13:28 | thank you :)
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| 13:30 | <Lns> oifzhozh: no worries. Google is your friend ;)
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| 13:31 | <Blinny> oifzhozh: Oops
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| 13:32 | <oifzhozh> Lol i googled it all day long :x
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| 13:33 | i just found admin panels for mozillas apps, some Betas not wrking
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| 13:48 | <Lns> oifzhozh: admin panels for mozilla apps?
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| 13:50 | <mnevans13> I am looking for some help setting up a test LTSP server-client. Server is an Ubuntu 8.10 installation with LTSP 5. This is connected via a single NIC to a router. I have the thin client connected to the router. This is a Diskless Workstations PXE-boot 1520 client. I followed the instructions on the Ubuntu LTSP Wiki:
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| 13:50 | Whoops; let me try again - first time chatting...
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| 13:51 | I want to connect a PXE booting thin client to
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| 13:51 | a server running Ubuntu 8.10 with LTSP installed
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| 13:51 | The server has a single NIC
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| 13:51 | This is connected to the internet via a linksys
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| 13:52 | ethernet hub. The server is in the DMZ and the
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| 13:52 | client is on the LAN. I think I've configured the
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| 13:53 | /etc/ltsp/dhcp to put the client on the LAN,
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| 13:53 | given it a range of DHCP addresses on the LAN,
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| 13:53 | but the thin client will not boot. It says it can't
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| 13:53 | <oifzhozh> Des your youter route HCP requests and offers ?
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| 13:53 | <mnevans13> receive the boot filename, after trying to connect
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| 13:54 | via dhcp.
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| 13:54 | <oifzhozh> Your tftp server is running ? ( netstat -lataupe )
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| 13:54 | <mnevans13> Hang on, I have the router admin window open...
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| 13:55 | there's a line in the netstat output:
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| 13:55 | spectra has joined #ltsp | |
| 13:55 | <mnevans13> udp 0 0 *:tftp *:* root 6377191
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| 13:56 | <oifzhozh> So your tftp is listening
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| 13:56 | <mnevans13> Now does the router accept dhcp requests...
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| 13:56 | <oifzhozh> Could-you install wireshark on your server ,
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| 13:56 | ?
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| 13:56 | And try to boot; You should receive a dhcp request, if your router routes it.;;
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| 13:57 | <mnevans13> local dhcp server is enabled.
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| 13:57 | oifzhozh has quit IRC | |
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| 13:58 | <mnevans13> installing wireshark... stand by...
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| 13:58 | <oifzhozh> You have to sniff the paquets to verify if your dhcp paquets are routed to your server
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| 13:58 | Ok :)
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| 13:58 | <mnevans13> BTW: thank you for your help!
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| 13:59 | RobertLaptop has joined #ltsp | |
| 13:59 | <mnevans13> wireshark installed...
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| 14:00 | Hmm.. don't exactly see how to set up an interface to capture in wireshark.
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| 14:01 | OK... started capture ...
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| 14:02 | <dmarkey> hi, how do i debug LTSP on the clien
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| 14:02 | t
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| 14:02 | ZRQH has joined #ltsp | |
| 14:02 | <ZRQH> i'm back. Internet problems :x
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| 14:02 | i'm oifzhozh
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| 14:03 | bobby_C has quit IRC | |
| 14:03 | <ZRQH> Erf waiting for ping timeout ...
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| 14:04 | <ZRQH> Does you wireshrk is installed ?
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| 14:04 | <mnevans13> Yes, wireshark installed; captured an attempt to
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| 14:04 | boot from the thin client. Now I'm trying to make
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| 14:04 | sense of the wireshark output.
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| 14:05 | I'm looking for the MAC address of the thin client
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| 14:05 | in the wireshark capture.
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| 14:05 | <ZRQH> You can sort paquet by type
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| 14:05 | and looking for dhcp
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| 14:06 | <mnevans13> Not sure how to sort by type... which type am I looking for?
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| 14:06 | <ZRQH> If there are too many paquets, you can try to start paquets capturing only when the message "DHCP ... / -- \ --
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| 14:06 | YOu are looking for a DHCP request
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| 14:06 | <Gadi> mnevans13: turn off DHCP in the router
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| 14:07 | <mnevans13> OK - sort by protocol. Got it. I see lots of
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| 14:07 | DHCP offers and Discovers.
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| 14:07 | <ZRQH> do you see some DHCP offers ?
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| 14:07 | ( from your server )
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| 14:07 | <mnevans13> Yes: source lists the server.
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| 14:07 | <ZRQH> ( just after receiving DHCP request )
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| 14:08 | <mnevans13> Yes: Discover, then Offer. Discovery request is from
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| 14:08 | 0.0.0.0 - thin client trying to make a connection?
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| 14:08 | <ZRQH> Yes it is
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| 14:09 | You haver to verify if your router doesn't send some parasit dhcp offers
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| 14:09 | The only which have to send offers is your ltsp server
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| 14:09 | ( as said Gadi )
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| 14:09 | <mnevans13> Gadi: I do have dhcp on in the router. Let me switch that
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| 14:09 | off.
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| 14:10 | <Gadi> mnevans13: your ltsp box runs a dhcp server. if you run one on the router, then you have 2 dhcp servers handing out different info
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| 14:10 | <mnevans13> DHCP server from router is off now. Yes, I see
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| 14:10 | <Gadi> which means you have created a race confition
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| 14:10 | *condition
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| 14:10 | <mnevans13> what you're saying now.
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| 14:10 | OK - router is not serving dhcp
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| 14:11 | <ZRQH> Does anyone here ever got the rom-o-matics 'roms or isos or bootable partition work ? I spend a day on it but nothing :x
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| 14:11 | <mnevans13> Shall I try again to boot the thin client?
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| 14:11 | <ZRQH> Yesyou have to
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| 14:11 | <alkisg> ZRQH: sure, in what format do you need them?
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| 14:12 | I mostly load the .krn image from a hard disk, but I've also used floppies and cds...
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| 14:12 | <ZRQH> I user the gPXE roms ( i read the numbers in my NIC's chip )i burned a bootable disc with the .iso file, from gPXE and / or etherboot
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| 14:12 | But never worked. Tried with 5 NIC :x
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| 14:13 | <mnevans13> OK - tried another PXE boot of the client. It seems
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| 14:13 | <alkisg> ZRQH: why don't you download the "gpxe:all-drivers" disk from rom-omatic?
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| 14:13 | <ZRQH> I tried .zhd too
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| 14:13 | ?
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| 14:13 | Lol where is it ? :x
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| 14:13 | <alkisg> Or try this one: https://help.ubuntu.com/community/UbuntuLTSP/grubgpxe#Boot%20from%20CD
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| 14:13 | It's a recent one, 0.9.7 - last stable version
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| 14:14 | <mnevans13> the server is unreachable from the client. I can
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| 14:14 | see the client's MAC address in the Discover requests;
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| 14:15 | <alkisg> ZRQH: the gpxe:all-drivers disk is somewhere in the middle of the drivers list!!! It's a little difficult to spot it between all the PCI-ids. In the usual rom-o-matic page.
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| 14:15 | <mnevans13> the server seems to no longer be offering DHCP.
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| 14:15 | <ZRQH> Wohaw thank you !
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| 14:15 | <mnevans13> Do I need to restart the LTSP server?
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| 14:16 | <ZRQH> just verify with "netstat -lataupe" if your 3 servers are running ( i mean dhcp-3 tftp and bootpc
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| 14:16 | oifzhozh has quit IRC | |
| 14:17 | <ZRQH> LOL 5 minuts to timeout ...
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| 14:17 | Nick oifzohzh
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| 14:17 | <mnevans13> I see the line in netstat -lataupe:
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| 14:17 | udp 0 0 *:tftp *:* root 6377191
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| 14:17 | and a similar line for bootpc.
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| 14:18 | <ZRQH> AND dhcp-3 ?
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| 14:18 | <mnevans13> netstat -lataupe | grep dhcp-3 gives nothing. Does
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| 14:18 | that mean I need to restart the ltsp server?
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| 14:19 | <ZRQH> type /etc/init.d/dhcp-3-server start ( or something like this, try indent /init.d/dhc ...
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| 14:19 | <alkisg> sudo invoke-rc.d dhcp3-server restart
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| 14:20 | <mnevans13> it was sudo /etc/init.d/dhcp3-server start,
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| 14:20 | and it gives an error with my configuration: it
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| 14:20 | <ZRQH> I had it today
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| 14:20 | <mnevans13> doesn't like the netmask: I gave it 255.255.255.0
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| 14:21 | <ZRQH> Did you configure a file to tell the dhcp wich nic ( ethX ) it would use ?
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| 14:21 | What network did you type ?
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| 14:21 | <mnevans13> for a LAN 192.168.1.X
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| 14:21 | <ZRQH> Erf its illogical :x
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| 14:21 | <mnevans13> I'm not sure I know what you're asking.
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| 14:22 | the server is on the network as
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| 14:23 | 192.168.1.100, with netmask 255.255.255.0
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| 14:23 | <Blinny> mnevans13: pastebin your /etc/ltsp/dhcpd.conf
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| 14:24 | <mnevans13> Blinny (ZRQH, Gadi) - thanks. Here is my dhcpd.conf:
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| 14:24 | authoritative;
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| 14:24 | subnet 129.168.1.100 netmask 255.255.255.0 {
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| 14:24 | range 192.168.1.141 192.168.1.150;
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| 14:24 | option domain-name "ltsp-zero";
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| 14:24 | option domain-name-servers 128.8.74.2;
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| 14:24 | option broadcast-address 192.168.1.255;
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| 14:24 | <ZRQH> you have to declare witch nic you want the dhcp make his offers in the file /etc/default/dhcp3-server
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| 14:24 | <mnevans13> option routers 192.168.1.1;
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| 14:25 | option subnet-mask 255.255.255.0;
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| 14:25 | ... the remainder is from the default settings.
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| 14:25 | <alkisg> mnevans13: subnet 129?
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| 14:25 | <Blinny> ZRQH: No you don't.
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| 14:26 | <alkisg> mnevans13: change to: subnet 192.168.1.0 netmask 255.255.255.0 {
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| 14:27 | <Blinny> ZRQH: Leaving /etc/default/dhcp3-server default, dhcpd will only attach to interfaces for which it finds a valid subnet declaration.
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| 14:27 | <ZRQH> ok :x
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| 14:27 | <mnevans13> alkisg: Duh! Let me fix 129--> 192.168.1.0, 255.255.255.0 and restart the dhcp3-server...
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| 14:27 | <ZRQH> doh ! ^^
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| 14:28 | <mnevans13> OK. dhcp-3 restarted. Now let me restart the client...
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| 14:28 | ...It looks like it loaded the image!
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| 14:29 | Now the usual Ubuntu startup screen...
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| 14:29 | First: Thanks and sorry that a typo wasted your time, but I learned something helpful.
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| 14:29 | Now can I ask another question?
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| 14:29 | After I try this out locally, I want to put the thin client
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| 14:30 | in my satellite office, and connect to the server over the
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| 14:30 | internet. How would I change this configuration
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| 14:30 | to do so? The server is on the internet, in the DMZ
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| 14:30 | at a specified real IP.
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| 14:30 | <Blinny> mnevans13: You don't want to do that :)
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| 14:31 | <ZRQH> You need a very big internet bandwidth
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| 14:31 | <mnevans13> This is going across a college campus. Temporarily it
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| 14:31 | <Blinny> mnevans13: what size internet pipe?
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| 14:31 | <mnevans13> will be on a 10baseT network, then it will be on Gigabit or 10Gb network.
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| 14:32 | <Blinny> mnevans13: dhcp won't work outside of your subnet
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| 14:32 | <ZRQH> over the internet ?
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| 14:33 | <Blinny> mnevans13: if you manage to set up a VPN that bridges all (ALL) traffic over the 10Mbit pipe you could do it for a few clients but they'll be sluggish.
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| 14:34 | <mnevans13> Reality will be that one thin client will be on a different subnet (satellite office);
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| 14:34 | <alkisg> mnevans13: security aside, you could use gpxelinux.0
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| 14:34 | <ZRQH> How to connect to the vpn before booting the PXE ?
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| 14:34 | <alkisg> or a boot disk
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| 14:34 | <mnevans13> rest of thin clients would be on a private set of addresses behind a switch.
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| 14:34 | <Blinny> ZRQH: routers will create bridge subnets for you
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| 14:34 | gotta fly
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| 14:34 | <mnevans13> Thanks Blinny!
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| 14:35 | alkisg: what are the security problems? Aren't the
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| 14:35 | clients running over ssh connections?
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| 14:36 | <alkisg> The clients yes, but not the image. And it's not a good idea to run an ltsp server in a public network
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| 14:37 | <mnevans13> OK. I't not sure I understand the statement "... but not the image." So I could have the clients boot off of a
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| 14:37 | flash drive locally connected to the client?
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| 14:38 | Re: 'not run the ltsp server in a public network: can
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| 14:38 | I have the server accessible via internet in such a
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| 14:38 | setup?
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| 14:38 | [I mean, safely accessible]
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| 15:27 | <mnevans13> Thanks to help earlier today I have a thin client
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| 15:27 | test system running (off Ubuntu 8.10 server).
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| 15:27 | The screen resolution is being picked up from the
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| 15:28 | server's display, which is 1920x1200. But the
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| 15:28 | client's is 1680x1050. How do I get the thin client
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| 15:28 | to get the right screen resolution?
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| 15:30 | I tried setting
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| 15:30 | [default]
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| 15:31 | X_MODE_0 = 1680x1050
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| 15:31 | in lts.conf, then rebuilding the client. Then rebooting the thin client. That didn't seem to work.
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| 15:31 | <Gadi> mnevans13: if you set the screen resolution manually in Gnome, it is using what you set
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| 15:32 | it is most likely gnome that is changing resolution on you
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| 15:32 | <mnevans13> Hello again Gadi. You're very kind to help me again. I did set the resolution manually in Gnome for the server. This was after
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| 15:32 | replacing the monitor now with the thin client on the server, but without rebooting with the new hardware. It took some effort
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| 15:32 | <Gadi> mnevans13: you can try one of two things
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| 15:32 | <mnevans13> to get the .. I'll listen!
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| 15:33 | <Gadi> 1. force it to only recognize 1 mode:
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| 15:33 | edit: /var/lib/tftpboot/ltsp/i386/lts.conf
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| 15:33 | add:
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| 15:33 | [default]
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| 15:33 | CONFIGURE_X=True
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| 15:33 | X_MODE_0=1680x1050
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| 15:33 | (no need to rebuild the image)
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| 15:33 | just reboot the client
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| 15:34 | if that does not work, it is possible that 1680x1050 is not a valid mode for that driver
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| 15:34 | if you go to Preferences > Screen Resolution, you should see available modes in the pulldown
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| 15:35 | if you don't see that one, you may need to tweak some video driver settings for the client
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| 15:39 | <Gadi> (sorry - ph call)
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| 15:39 | 2. Delete your user's ~/.gconf/desktop/gnome/screen directory
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| 15:39 | dirigeant has joined #ltsp | |
| 15:39 | <Gadi> and relog in
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| 15:40 | that should get u back to using maximum screen res
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| 15:47 | <mnevans13> same here: phone call I couldn't drop! Back in a minute...
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| 15:50 | OK. Trying the first method. Created lts.conf in /var/... rebooting... The thin client is a diskless workstations 1520, and one of its
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| 15:52 | resolutions was supposed to be 1680x1050. Unfortunately, I can't use the Preferences>Screen resolution dialog when the resolution
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| 15:53 | is wrong. But: Method 1 worked. I wonder why this didn't work in the lts.conf file that was in /opt/...?
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| 15:59 | <mnevans13> Gadi, thanks again for your help. I'm grateful for the forum - great resource.
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| 15:59 | Over and out for now.
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| 19:07 | <dmarkey> what filesystems are supported on the client side?
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| 19:16 | <vagrantc> dmarkey: whatever your host distro supports
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| 19:19 | <dmarkey> vagrantc: ok, i'm using debian, if im using rdesktop sessions, what daemon is in charge of mounting inserted usb keys?
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| 19:19 | <vagrantc> oh, i don't know much about the rdesktop stuff.
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| 19:19 | don't think it's supported out of the box.
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| 19:19 | <dmarkey> vagrantc: but it is via ldm?
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| 19:20 | <vagrantc> ?
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| 19:22 | <dmarkey> ldm? LTSP display manager?
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| 19:24 | <vagrantc> dmarkey: "it" ?
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| 19:24 | dmarkey: you started talking about filesystems, then you started talking about rdesktop, and then you started talking about ldm ... so what's "it" ?
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| 19:25 | <dmarkey> mounting USB keys, does ldm do it?
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| 19:25 | <vagrantc> yes.
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| 19:27 | <dmarkey> do not udev or something else?
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| 19:27 | <vagrantc> udev rules are used by ltspfs, and there are ltspfs hooks into ldm.
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| 19:28 | <dmarkey> so, would udev mount it in /media? or would it not get that far
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| 19:29 | <vagrantc> udev doesn't mount anything directly.
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| 19:29 | it just tells ltspfs to do what ltspfs does.
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| 19:29 | anyways, gotta run.
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| 21:30 | <jdu> anything stopping one from setting $DISPLAY and opening X11 applications on other people's displays when in a ltsp network?
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