IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 30 June 2007   (all times are UTC)

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02:19
<HereBeDragon>
Hi
02:19
What package do I need to install to convert my centos 5 box into an LTSP server?
02:53
<sahil>
HereBeDragon:http://ltsp.mirrors.tds.net/pub/ltsp/utils/ltsp-utils-0.25-0.noarch.rpm
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04:12
<sahil>
for sound with sis7109 do i need to build my own kernel?
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05:01
<sahil>
ping: ogra
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10:38
<breun>
hello, I just installed K12LTSP 5 EL (the CentOS based distribution) on a dell poweredge 2900. the clients are booting, but seem to hang at "nfs: server 10.0.0.254 not responding, still trying"
10:38
nfs is running, I restarted it and disabled the firewall, but still no luck
10:38
does anyone have any idea?
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11:12
<yigal>
is there a "performance study|" that shows the affect of client's capabilities? e.g. how much DRAM should the client have, clients cpu strength etc?
11:15
<vagrantc>
if you're running as a real thin client, 64-128MB of ram and a 300-400MHz processor would be great
11:16
if you're running your sessions unencrypted, even less processing is needed
11:16
<breun>
still no one that knows why I get "nfs: server 10.0.0.254 not responding, still trying" on my fresh K12LTSP 5EL install?
11:16
<vagrantc>
yigal: but i don't know of any studies in that matter. that just comes from experience
11:17
breun: have you looked on the wiki page ?
11:17
breun: i'm pretty sure there's some troubleshooting tips for that on there
11:18
!troubleshoot
11:18
<ltspbot>
vagrantc: Error: "troubleshoot" is not a valid command.
11:18
<breun>
for NFS?
11:18
<vagrantc>
yes
11:18* vagrantc looks for a wiki page
11:18
<vagrantc>
ltspbot: factoids search --values
11:18
<ltspbot>
vagrantc: 'ltsp', 'sbalneav', 'icewm', 'frappr', 'wiki', 'debian', 'edubuntu', 'dhcpd', 'greyscreen', 'ltsp42', 'localdev', 'localdev', 'localdev', 'checklist', 'muekow', 'bestltspdistro', 'serversize', 'wireless', 'sound', 'topics', 'integration', 'lts.conf', 'pastebot', 'bootfloppy', 'ltsp5', 'tarball', 'download', 'monkeys', 'ogra', 'nfs', 'nfsnotresp', 'js', 's', 'troubleshooting', 'sbnet', (1 more message)
11:18
<breun>
the k12ltsp wiki or the ltsp wiki?
11:18
<yigal>
i am ramping up a class, real thin clients. I plan to have some 64MB clients, some 128MB and up.. I am afraid of network trafic, and reponsivness of the client
11:18
<vagrantc>
wiki.ltsp.org
11:19
yigal: network traffic is rarely the bottleneck with 100Mbit networks
11:19
!troubleshooting
11:19
<ltspbot>
vagrantc: "troubleshooting" is http://wiki.ltsp.org/twiki/bin/view/Ltsp/TroubleShooting
11:19
<vagrantc>
breun: try that
11:19
<yigal>
what if they will play music or go to youtube?
11:20
<vagrantc>
music probably will work ok. videos are likely going to be very bad
11:20
even with just one client
11:21
<breun>
ok, it seems it has something to do with NFS blocksizes...
11:21
I'll look into it
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11:27
<breun>
great, editing /tftpboot/lts/pxe/pxelinux.cfg/default worked!
11:27
http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#Solution_when_using_PXE
11:27
thanks
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11:33
<yigal>
I have a problem: using edubuntu, the client is booting ok, I entered the user name and password, but it always bringing back the login window. same with several clients, and with different users - also root. any idea?
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11:48
<wpgmb>
I need help with the dhcp.conf file - I'm using two NICs, and a separate DHCP server. Can anyone point me to a working config for that setup?
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11:50
<vagrantc>
wpgmb: does it need to be a DHCP server for both networks, or just the LTSP network ?
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11:51
<vagrantc>
yigal: which version of edubuntu ?
11:51
yigal: have you run ltsp-update-sshkeys ?
11:51
yigal: are you able to ssh into the server from another machine ?
11:51
<wpgmb>
vagrant: My firewall is also my dhcp, and if it could be the dhcp server for both the ltsp server and the clients, that would be great (less load on the ltsp, I guess)
11:52
<vagrantc>
wpgmb: DHCP is ridiculously low load ... you want to have control of the DHCP server for your LTSP clients on the LTSP server.
11:53
<wpgmb>
vagrant: setup as follows: Internet -> firewall (Smoothwall = DHCP server) -> LTSP server (7.04) (Static IP) -> switch(es) -> clients (Static IP's)
11:53
<vagrantc>
wpgmb: if you're got two NICs in the server, then you can leave DHCP alone on your firewall, and setup DHCP on your LTSP server to only answer on the thin client network
11:54
wpgmb: yeah, that's perfect. set up your LTSP server to server DHCP only on one interface
11:54
should be the default behavior on a fresh edubuntu install
11:55
<wpgmb>
where can I paste my current dhcp.conf?
11:55
<vagrantc>
!pastebot
11:55
<ltspbot>
vagrantc: "pastebot" is The LTSP pastebot is at http://pastebot.ltsp.org. Please paste all text longer than a line or two to the pastebot, as it helps to reduce traffic in the channel. A link to the content will be pasted in the channel.
11:55
<vagrantc>
wpgmb: do you have ltsp-server-standalone installed ?
11:55
<wpgmb>
moment
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11:55
<vagrantc>
because then it will use /etc/ltsp/dhcpd.conf
11:56
<ltsppbot>
"wpgmb" pasted "dhcp.conf" (17 lines) at http://pastebot.ltsp.org/195
11:57
<vagrantc>
wpgmb: dpkg -l 'ltsp-server*'
11:57
<wpgmb>
moemnt
11:58
<ltsppbot>
"wpgmb" pasted "ltsp-server" (8 lines) at http://pastebot.ltsp.org/196
11:58
<vagrantc>
wpgmb: so which file did you paste to the pastebot ?
11:58
<wpgmb>
both the dhcp.conf, and the ltsp output
11:59
<vagrantc>
did you paste /etc/ltsp/dhcpd.conf or /etc/dhcp3/dhcpd.conf ?
11:59
<wpgmb>
/etc/ltsp/dhcpd.conf
11:59
<vagrantc>
ok
12:00
wpgmb: so what is your server's static IP address ?
12:00
wpgmb: and what address is it getting from DHCP ?
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12:00
<wpgmb>
192.168.0.25
12:00
same
12:01
dhcp firewall/server setup to hand out IP's by MAC
12:01
<vagrantc>
you probably want to set your static IP address to 192.168.1.1
12:01
and restart DHCP
12:01
wait a minute ...
12:01
<wpgmb>
That wouldn't be on the same network as the firewall, or are you talking about the NIC for the LTSP side?
12:02
<vagrantc>
yes, the LTSP side
12:02
<wpgmb>
sorry
12:02
hang on
12:02
<vagrantc>
you should have two IP addresses ... one that you get from your firewall's DHCP server ... and one that you set staticly for the LTSP network.
12:02
<wpgmb>
yep
12:02
<vagrantc>
each network card should have a different IP address on a different network.
12:02
<wpgmb>
correct
12:03
<vagrantc>
so what IP address did you get from your firewall's DHCP, and what IP address did you statically configure for the LTSP network ?
12:04
<wpgmb>
firewall to eth0 = 192.168.0.25 & eth1 (for LTSP) is static at 192.168.1.1
12:04
<vagrantc>
ok
12:04
<wpgmb>
I haven't configured DHCP for LTSP yet
12:04
<vagrantc>
looks like you've configured /etc/ltsp/dhcpd.conf ... ?!
12:04
<wpgmb>
(I was hoping it would be simplified by pointing the clients to the firewall's dhcp)
12:04
<vagrantc>
that will add 100 headaches
12:05
use the LTSP server's DHCP.
12:05
<wpgmb>
ok
12:05
how do I check that config?
12:05
<vagrantc>
check what configure?
12:05
<wpgmb>
or - correct it...
12:05
<vagrantc>
change 192.168.0. to 192.168.1.
12:06
that should fix it.
12:06
<wpgmb>
hang on there... are you talking about the current dhcp.conf as pasted earlier?
12:06
<vagrantc>
yes
12:06
<wpgmb>
moment
12:06
<vagrantc>
looks like you've modified it
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12:06
<wpgmb>
I did - was chatting with scotty before :o)
12:07
<vagrantc>
or you could just comment out domain-name-servers, domain-name and routers
12:08
<wpgmb>
I was just going to ask
12:08
moment
12:08
<vagrantc>
it's not really needed for an LTSP environment
12:08
<wpgmb>
ok - restarting dhcp
12:10
<ltsppbot>
"wpgmb" pasted "dhcp restart ----- succesful???" (27 lines) at http://pastebot.ltsp.org/197
12:11
<vagrantc>
wpgmb: invoke-rc.d dhcp3-server restart
12:11
wrong command :P
12:12
<wpgmb>
invoke-rc.d: initscript dhcp3-server, action "restart" failed
12:13
dhcpd self-test failed. Please fix the config file.
12:13
back to the dhcp.conf, I guess
12:14
In my dhcp.conf, as it is, don't I need to reflect having two nics in my system?
12:15
<vagrantc>
should just ignore networks with undefined interfaces ...
12:16
<wpgmb>
sorry -don't understand
12:16
vagrant: it appears my current dhcp.conf is no good. Want me to paste it again?
12:16
<vagrantc>
hold on a second.
12:16
<wpgmb>
k
12:17
<vagrantc>
wpgmb: sudo egrep -i dhcpd /var/log/syslog
12:17
wpgmb: and paste that to the pastebot
12:18
<ltsppbot>
"wpgmb" pasted "egrep" (10 lines) at http://pastebot.ltsp.org/198
12:19
<vagrantc>
wpgmb: that's not the command i asked you to run.
12:19
er... wait
12:19
nevermind, my mistake
12:20
wpgmb: ps aux | egrep dhcpd
12:21
<ltsppbot>
"wpgmb" pasted "egrep" (5 lines) at http://pastebot.ltsp.org/199
12:22
<vagrantc>
hmmm "dhcpd self-test failed." ... wonder if this is an ubuntuism
12:22
wpgmb: sudo invoke-rc.d dhcp3-server stop
12:23
<wpgmb>
done
12:23
<vagrantc>
wpgmb: ps aux | egrep dhcpd3
12:23
<wpgmb>
done
12:23
<vagrantc>
wpgmb: sudo invoke-rc.d dhcp3-server start
12:24
<wpgmb>
done
12:24
<vagrantc>
any error message this time ?
12:24
wpgmb: sudo egrep -i dhcpd /var/log/syslog
12:24
<wpgmb>
nope
12:25
<vagrantc>
ok ... well ... no idea why restart failed ...
12:25
<wpgmb>
no error - moment for the next one
12:26
<ltsppbot>
"wpgmb" pasted "egrep" (15 lines) at http://pastebot.ltsp.org/200
12:27
<vagrantc>
these don't look so good. "server dhcpd: receive_packet failed on eth1: Network is down"
12:30
<wpgmb>
I noticed that
12:31
<vagrantc>
is this plugged into a switch ?
12:31
or direct to a client with a cross over cable ?
12:31
<wpgmb>
eth1? nope - crossover (for now) to a client
12:31
<vagrantc>
is the client powered on?
12:31
wait ... network is down ...
12:31
is eth1 up ?
12:32
<zodman>
eth1 network down is .................... cable not plugged right!!
12:32
<vagrantc>
ifconfig | egrep ^eth1
12:32
<wpgmb>
not at the moment - I try every time we made a change, to see if it would find the ltsp server
12:32
eth1 Link encap:Ethernet HWaddr 00:10:4B:97:68:A5
12:32
<vagrantc>
so, has it gotten an IP address from the server ?
12:33
<wpgmb>
eth1 is the one we assigned statically to 192.168.1.1 , remember?
12:33
<vagrantc>
has the thin client gotten an IP address from your LTSP server ?
12:40
<yigal>
Vagrantc: sorry, i wa away. And you are correct! I didnt do "ltsp-update-sshkeys" - now it works!
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13:09
<wpgmb>
vagrant: you still there? Just wanted to thank you, and let you know my first client just booted. Whoo-hoo!!
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13:16
<vagrantc>
wpgmb: glad to hear it :)
13:16
yigal: yay :)
13:23
<wpgmb>
now I need to figure out how I can add clients... I was hoping that that would be "automatically" at the login screen, but nooooooooooooo
13:24
anyway - g2g for lunch, promised my wife.. I suppose that's more important than playing with my systems... :o)
13:25
If you have any suggestions, leave 'm here - I'll check when I get back
13:29* vagrantc never needs to add clients
13:29
<vagrantc>
wpgmb: you mean logins ?
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14:06
<yigal>
guys - is there a way for someone to login as "one-time-user"? this is to allow a guest to login, browse the web, and not to store any of it?
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14:27
<wpgmb>
vagrantc: Yes, logins
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14:44
<vagrantc>
wpgmb: you're on your own there
14:45
yigal: well, like many things, it is of course possible, but it requires a lot of work.
14:49
<wpgmb>
anyone: do I need to create a user on the ltsp server, ie "jimmy", before "jimmy" can use his terminal to login as himself? lo
14:49
<vagrantc>
correct
14:49
the thin client logs into the server and runs all applications on the server... so you need an account on the server itself.
14:50
you can essentially think of the thin client as an extra monitor, mouse and keyboard for the server itself...
15:19
<wpgmb>
ha - discovered the problem... "LAN" boot on an older system ain't necessarily working. **off to get boot floppies**
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16:52
<ukasz>
hi
16:54
i have a problem witch keyboard. i can not type anything in login prmpt
16:54
i have a diffrent XDM server
16:54
that thin client is redirected to
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18:20
<vagrantc>
ukasz: what distro ?
18:20
<ukasz>
debian
18:20
<vagrantc>
what's in your lts.conf ?
18:21
<ukasz>
w8 i will paste it
18:21
<vagrantc>
any SCREEN_* entries ?
18:21
!pastebot
18:21
<ltspbot>
vagrantc: "pastebot" is The LTSP pastebot is at http://pastebot.ltsp.org. Please paste all text longer than a line or two to the pastebot, as it helps to reduce traffic in the channel. A link to the content will be pasted in the channel.
18:22
<ltsppbot>
"ukasz" pasted "lts.conf" (17 lines) at http://pastebot.ltsp.org/201
18:23
<ukasz>
do you have the info what i have pasted ?
18:27
vagrantc: http://pastebot.ltsp.org/201
18:29
<vagrantc>
patience :P
18:29
<ukasz>
ok
18:30
<vagrantc>
ukasz: how did you install LTSP ?
18:30
<ukasz>
apt-get
18:30
it is v 5
18:30
<vagrantc>
ok ... so comment out everything.
18:30
<ukasz>
only 1 line
18:31
<vagrantc>
change SCREEN_01 to SCREEN-07
18:31
er
18:31
change SCREEN_01 to SCREEN_07
18:31
<ukasz>
ok
18:31
<vagrantc>
so your NFS server is different from your XDMCP server ?
18:31
<ukasz>
no
18:32
nfs dhcp and ltsp are on the same machine
18:32
<vagrantc>
i see SERVER = 192.168.2.1 and XDM_SERVER = 192.168.2.255 .... ?
18:32
ok ... so just leave SCREEN_07=startx
18:32
<ukasz>
yes becouse i want a separatemachine to log in via xdmcp
18:33
i also would like to learn how to configure ltsp to enable lg int the same machine where is ltsp dhcp nfs
18:33
<vagrantc>
so your NFS server *is* different than your XDMCP server ?
18:33
<ukasz>
yes
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18:34
<jammcq>
howdie
18:34
<vagrantc>
so, i asked the same exact question twice, and got a different answer each time :P
18:34
well, i emphasized *is* the second time
18:34
<ukasz>
sry it is a little bit late
18:34
i am frm Poland and it is 01:30
18:34
:P
18:35
<vagrantc>
XKBLAYOUT and XKBMODEL
18:35
all caps
18:35
X_MODE_0 = 1024x768
18:35
that can stay
18:35
everything else should get commented out
18:36
er
18:36
XDM_SERVER
18:36
<ukasz>
k i have logged in
18:36
:)
18:36
yupiiii
18:36
the SCREEN_07 wrked
18:36
<vagrantc>
yes, XDM_SERVER is respected, good. :)
18:36
ukasz: most of the values you specified are not needed ...
18:37
<ukasz>
so summing it up what i will need
18:37
<vagrantc>
but you've got it working, so whatever :)
18:38
<ukasz>
2 versins witch eternal xdm and internas ( that is on the same machine as ltsp dhcp etc)
18:38
<vagrantc>
X_MODE_0 = 1024x768 ... SCREEN_07 = startx ... XDM_SERVER = 192.168.2.225 ... XKBMODEL = pc105 (maybe) ... XKBLAYOUT = pl
18:38
<ukasz>
ok
18:38
<vagrantc>
and [Default]
18:38
that's all you should need
18:38
<ukasz>
i will try now t lg in the same machine
18:39
<vagrantc>
i'm confused about his "2 versins witch eternal xdm and ..." bit
18:41
<ukasz>
now that i know how to log in to a separate machine (not that one that ltsp dhcp and nfs are runing on) i want to log on the same machine
18:41
do u know what i mean ?
18:41
<vagrantc>
leave out XDM_SERVER
18:41
it will default to use the same server for everything
18:41
<ukasz>
ok trying.....
18:42
<vagrantc>
but you of course need to configure an XDMCP server on the machine
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18:44
<ukasz>
ok i have xdmcp enabled in gdm conf but it will not start
18:44
big whitespace with crss in the middle
18:45
cros in the middle
18:45
<vagrantc>
!greyscreen
18:45
<ltspbot>
vagrantc: "greyscreen" is No login, and only a grey screen? See http://wiki.ltsp.org/twiki/bin/view/Ltsp/Troubleshooting-GrayScreen
18:51
<ukasz>
i don't have xauthrity file
18:51
gdm is runing and listening nport
18:51
prt
18:53
<vagrantc>
but it works if you use XDM_SERVER ?
18:54
another question ... why XDMCP ?
18:56
you'll have to figure out how to configure local devices and sound yourself, as it is not currently supported via XDMCP
18:56
<ukasz>
becuse XDMCP enables me to lgin to a different machine
18:57
crap i can't write anything. i have rw option in exports
18:57
therefore i can not read any lgs :(
18:57
<vagrantc>
yeah, but the client does read-only by default
18:58
if you enable write access, you'll need a separate tree for each and every client ...
18:58
<ukasz>
s what do i have to do to rw via nfs
18:58
?
19:02
k i have fund it in pxelinux
19:02
where are you from ?
19:08
ok it is working :)
19:08
ty verry much for patience and help
19:08
i am verry gratefoul
19:08
cu
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19:26
<vagrantc>
fools
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