IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 29 April 2013 (all times are UTC)
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| 00:10 | <epoptes_user7> hello
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| 00:10 | i want to ask how to configure an epoptes server and client
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| 00:14 | <vagrantc> !epoptes
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| 00:14 | <ltsp> epoptes: Epoptes is a computer lab administration and monitoring tool. It works on Ubuntu and Debian based labs with LTSP or non-LTSP servers, thin and fat clients, standalone workstations, NX clients etc. More info: http://www.epoptes.org
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| 00:15 | <vagrantc> epoptes_user7: you've seen http://www.epoptes.org/installation ?
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| 00:16 | <epoptes_user7> i have two edubuntu computers connected in lan, one of them installed as ltsp server and the other as ltsp client
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| 00:18 | i studied instalation page, i followed all the steps but i start epoptes in booth computers and computers dont recognize each other
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| 03:28 | <gdi2k> greetings! I'm successfully using LTSP for about 10 thin clients and things are good. But I'm getting a bit worried about the server failing and leaving all my clients dead. Is there a relatively simple way of adding a second server? I've looked at ltsp-cluster and it's complete overkill for me - looking for something for just a couple of servers, some way to share home directories, user accounts and installed packages
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| 03:32 | also not clear on how the clients would choose which server to log into - I thought I saw some info about LDM being able to load balance in some way but can't find it any more
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| 03:36 | <unkmar> gdi2k: I saw that as well.
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| 03:41 | <gdi2k> I've found a presentation that mentions it and there is a spec for it here: https://wiki.ubuntu.com/LDMLoadbalancingSupport but the link to the implementation is dead
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| 03:59 | <alkisg> gdi2k: the easiest way is to have a raid array in server1, so (1) if a disk fails, you can replace it without data loss, and (2) if the server1 hardware fails, you can move the disks to a server2 machine and have the thin clients up and running in a couple of minutes
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| 04:00 | <alkisg> server2 may even be a simple desktop machine, used as a thin client until it's needed as a server...
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| 04:01 | <gdi2k> alkisg: thanks, that's a neat idea. I could even use an external SATA enclosure that would be easy to shift to a second machine...
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| 08:11 | <Joanet> hi all
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| 08:11 | I've installed Edubuntu 12.04 + LTSP and I'm trying to use webcams on thin clients
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| 08:12 | Edubuntu is x64 version
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| 08:12 | webcam on the server works fine using cheese (and using lsusb is shown)
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| 08:12 | but on the thin client it is not listed using lsusb
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| 08:13 | can someone help me giving me any doc about it?
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| 08:15 | <highvoltage> Joanet: hey
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| 08:16 | Joanet: I'm about to head off into a meeting, but you might want to look into local apps and install cheese as a local app
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| 08:16 | <highvoltage> (might be able to give some more input there if you're still around in ~3 hours)
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| 08:16 | <Joanet> thanks highvoltage! I'll give a try
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| 08:18 | <elias_a> Second that. You want to run Cheese or some other piece of sw as local app.
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| 08:19 | How would you list the webcams as devices locally otherwise? :D
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| 08:20 | <dimmah1> Hi. I can't print on HP P1102 on LTSP (Ubuntu 12.04) connected to the client.
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| 08:20 | Printer is present in lsusb list, but nothing similar in /dev.
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| 08:20 | /dev/lp0 is present, but I don't it's my printer. Cause 1. on server printer is /dev/usb/lp0, 2. on client /dev/lp0 is present even when i booted without printer
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| 08:21 | * but I don't think it's my printer.
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| 08:21 | <alkisg> dimmah1: do you have access to the local client console?
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| 08:21 | E.g. with localapps, or with local root login, or with SCREEN_02=shell?
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| 08:22 | <dimmah1> yes, with localapps
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| 08:23 | <alkisg> And you say that lsusb there doesn't list the printer?
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| 08:23 | <alkisg> Ah sorry you said it's there in lsusb
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| 08:23 | <dimmah1> yes
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| 08:24 | <alkisg> Try this: udevadm monitor
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| 08:24 | Then remove the printer, then plug it again
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| 08:24 | and check to see if the device nodes are created
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| 08:25 | <dimmah1> on client or on server?
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| 08:26 | <alkisg> Locally on the client
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| 08:26 | It's best if you have root on the client, using for example:
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| 08:26 | !screen_02
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| 08:26 | <ltsp> screen_02: To get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using_a_shell_SCREEN
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| 08:26 | <alkisg> But localxterm should be ok too, for udevadm monitor...
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| 08:26 | <dimmah1> command not found
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| 08:26 | <alkisg> !localxterm
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| 08:26 | <ltsp> localxterm: Any applications that you launch on a thin client actually runs on the server, not on the client itself. If you want to open a program on the client locally, you can type 'ltsp-localapps <program>' in a run dialog or in a terminal. For example, 'ltsp-localapps xterm' to open a terminal running on the client.
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| 08:26 | <alkisg> Try /sbin/udevadm monitor
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| 08:26 | Maybe sbin isn't in your path
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| 08:28 | <Hyperbyte> I usually demolish everything in my path.
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| 08:29 | <dimmah1> /sbin/udevadm monitor shows:
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| 08:29 | monitor will print the received events for:
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| 08:29 | UDEV - the event which udev sends out after rule processing
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| 08:29 | KERNEL - the kernel uevent
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| 08:29 | and looks like hung up
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| 08:31 | <elias_a> Joanet: I do not speak spanish.
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| 08:34 | <lifeboy> I want to try ltsp-config to configure my dnsmasq, but can't find it? Any idea where to get it?
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| 08:54 | <alkisg> dimmah1: it didn't hang up, it's just waiting for udev events, now plug in your printer
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| 08:55 | and then paste the udevadm monitor output
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| 08:56 | <alkisg> lifeboy: what's the version of your ltsp-server? dpkg -l ltsp-server
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| 08:56 | <lifeboy> alkisg: 5.3.7-0ubuntu2.5
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| 08:57 | <dimmah1> oh, thanks, It gave me a lot of info
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| 08:58 | but what does it means? :)
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| 08:58 | <lifeboy> I followed the example at https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP, except that I don't want to use dnsmasq as proxy, but authoritive
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| 08:58 | All seems well, but addresses are just not being served
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| 08:59 | <alkisg> dimmah1: put the output to pastebin, pastebin.com
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| 09:04 | lifeboy: ltsp-config isn't available in ubuntu 12.04
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| 09:04 | (unless you're using the greek schools ppa)
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| 09:04 | Paste your config, and the output of `tail -F /var/log/syslog` when you're booting a client,
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| 09:05 | but, if you want an authoritative dhcp, I'd suggest you use isc-dhcp instead of dnsmasq
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| 09:05 | dnsmasq isn't very good as a dhcp server, it doesn't support parallel lease requests
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| 09:06 | <lifeboy> alkisg: Hmm... :-( I just can't get dnsmasq configured to serve addresses. I can't use isc-dhcp since it refused to give my clients addresses since they don't seem to be having at least 1 char client id's
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| 09:06 | Alkisg: There is nothing in the log when I try to boot a client
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| 09:07 | <dimmah1> here it is http://pastebin.com/fVS1S1ii
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| 09:08 | <alkisg> lifeboy: pastebin the output of this: egrep -rv '^#|^$' /etc/dnsmasq*
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| 09:08 | <Joanet> Hi again. I've installed cheese as local app but, after client restart, I do ltsp-localapps cheese and it do anything
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| 09:09 | <alkisg> dimmah1: sr1 is a CDROM, did you plug the printer at that time, or inserted a CD?
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| 09:09 | Joanet: did you run ltsp-update-image?
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| 09:09 | <Joanet> yes
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| 09:09 | <dimmah1> HP 1102 is the printer with cd-rom emulator
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| 09:10 | <lifeboy> alkisg: http://pastebin.com/YSgGUwJG
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| 09:10 | <Joanet> alkisg : yes, i did including -a i386
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| 09:10 | <alkisg> Joanet: run: ltsp-localapps xterm
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| 09:10 | And inside that, then run cheese
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| 09:11 | lifeboy: err would you care for a reverse vnc connection in order to troubleshoot that faster? I.e. screen sharing, we'll both be seeing your screen...
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| 09:12 | <lifeboy> sure
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| 09:12 | <alkisg> sudo apt-get install x11vnc; x11vnc -connect alkisg.dyndns.org
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| 09:12 | <lifeboy> I connect to that server with nx-client... Do you know off-hand if I can share that too?
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| 09:13 | <alkisg> Yes, but you might need -noshm in the x11vnc command line
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| 09:13 | x11vnc -noshm -connect alkisg.dyndns.org
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| 09:19 | <lifeboy> alkisg: gimme a moment, looks like I have some connection problem to that server at the moment
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| 09:20 | <Joanet> alkisg : xterm works using localapps, and if I launch lsusb it recognize the webcam, but when I try to launch Cheese I got this : Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkToggleButton, but as a GtkBin subclass a GtkToggleButton can only contain one widget at a time; it already contains a widget of type GtkLabel
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| 09:21 | <alkisg> Joanet: instead of cheese, run: gstreamer-properties, and test your cam from there
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| 09:21 | <Joanet> alkisg : ok, i'll try
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| 09:22 | <alkisg> dimmah1: I don't know what "with a cd-rom emulator" means, for a printer, but there's no printer device recognized there
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| 09:22 | <dimmah1> alkisg: is it looks like only scsi-cdrom has been connected? Sometimes it's happens with hp 1102. But if i plug it to the server everything's fine.
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| 09:22 | <alkisg> dimmah1: what's the output of udevadm monitor, if you do that on the server?
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| 09:22 | Maybe you're missing some hp* packages in the chroot?
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| 09:23 | $ dpkg -l 'hp*' | grep ^ii
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| 09:23 | ...compare the output of that, in your server vs your chroot
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| 09:25 | <dimmah1> after i turned off printer:
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| 09:25 | KERNEL[876405.832533] remove /devices/virtual/bdi/0:21 (bdi)
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| 09:25 | UDEV [876405.835744] remove /devices/virtual/bdi/0:21 (bdi)
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| 09:25 | after turn on:
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| 09:25 | KERNEL[876486.763290] add /devices/virtual/bdi/0:21 (bdi)
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| 09:25 | UDEV [876486.765444] add /devices/virtual/bdi/0:21 (bdi)
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| 09:25 | <alkisg> Unplug, don't just turn it off
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| 09:27 | <lifeboy> alkisg: I think you are connected, right?
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| 09:27 | <dimmah1> alkisg: OK
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| 09:28 | <alkisg> lifeboy: yup, let's go
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| 09:30 | <dimmah1> alkisg: dpkg -l 'hp*' | grep ^ii
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| 09:30 | gives me differt results. On server hplip & hpdata. On client hplip-cups & hpdata.
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| 09:31 | should I remove hplip-cups and install hplip on clint?
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| 09:34 | <Hyperbyte> Psst... have you added your LTSP implementations yet to the world map? http://www.ltsp.org/stories/
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| 09:36 | <alkisg> dimmah1: at least install hplip in the chroot...
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| 09:36 | <dimmah1> alkisg: as you said, I unplug and then plug
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| 09:36 | KERNEL[877012.215999] remove /devices/virtual/bdi/0:21 (bdi)
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| 09:36 | UDEV [877012.218130] remove /devices/virtual/bdi/0:21 (bdi)
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| 09:36 | KERNEL[877036.591817] add /devices/virtual/bdi/0:21 (bdi)
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| 09:36 | UDEV [877036.593766] add /devices/virtual/bdi/0:21 (bdi)
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| 09:38 | <alkisg> dimmah1: I don't see any printer entries there... no /dev/usb/*
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| 09:44 | <alkisg1> @#(*&#$ ISP... :)
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| 09:44 | (12:42:14 μμ) alkisg: lifeboy: I think your firewall is blocking dhcp requests
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| 09:44 | (12:42:44 μμ) alkisg: Try to turn it off when you're not connected with nx...
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| 09:46 | <lifeboy> I'll investigate what's going on. It's always been that way. The LAN is not blocked, only the WAN, but something may have changed in the upgrade to 12.04
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| 09:46 | <alkisg1> lifeboy: btw I've lost vnc connection, not that it's needed anymore...
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| 09:46 | <lifeboy> alkisg: thanks for your trouble. Muchos gracias!
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| 09:48 | alkisg1 is now known as alkisg | |
| 09:48 | <lifeboy> eh... Muchas Gracias! :-)
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| 09:48 | * alkisg doesn't know the difference between muchos or muchas :D | |
| 09:48 | <alkisg> You're welcome in any case :)
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| 09:48 | <Hyperbyte> lifeboy, you realize alkisg is Greek, right?
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| 09:49 | <lifeboy> Hyperbyte: Yes, I do :-) And neither am I Spanish!
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| 09:49 | <Hyperbyte> I would paste the Greek equivalent of 'thank you' for you to use, but my terminal has a strong distaste for UTF-8
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| 09:51 | <lifeboy> It a local habit here to thank someone in another language (with an accent if verbal) ... in a somewhat light-hearted way
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| 09:59 | <dimmah1> alkisg: still not succeed. But you gave me a clue, I'll switch printer to non cdrom emulation mode. Thanks!
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| 10:11 | <Joanet> alkisg : I've installed gstreamer but using ltsp-localapps it says command not found, although I've updated the image... what can I do?
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| 10:13 | <Hyperbyte> Joanet, do not send private messages to people in this channel without permission. What you are doing is considered spamming on Freenode.
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| 10:13 | <Joanet> ok, I'm sorry
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| 10:14 | <alkisg> Joanet: $ dpkg -S /usr/bin/gstreamer-properties
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| 10:14 | gnome-media: /usr/bin/gstreamer-properties
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| 10:14 | gnome-media is the package you want
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| 10:25 | <Joanet> thanks alkisg, now gstream works but I get r/w error on device /dev/video0 . I'll search
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| 10:27 | <alkisg> Joanet: try adding the user to the audio/video etc groups
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| 10:27 | ls -l /dev/video0 will tell you the group needed
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| 10:36 | <Joanet> alkisg: yes, gpasswd -a user video do the trick
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| 10:36 | :)
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| 10:36 | now, I've to install skype to use it with localapps, but dpkg says skype:i386
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| 10:40 | <alkisg> You probably need the partner repository for skype, ask in #ubuntu to make sure
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| 11:46 | <ltspuser_05> hello
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| 11:46 | <Joanet> alkisg: skype installed, but when I run it as localapp not window is shown
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| 11:46 | and no error is shown
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| 11:53 | <Joanet> anyone has running skype using localapps?
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| 11:54 | <ltspuser_05> I'm using ltsp 5.3.7 on Ubuntu 12.04 amd64. I've a NAS with CIFS. I've like to mount home user on this share. Is-it possible ?
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| 11:54 | meamy has joined IRC (meamy!~user@pd95cdee4.dip0.t-ipconnect.de) | |
| 11:55 | <muppis> !localapps-xterm
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| 11:55 | <ltsp> Error: "localapps-xterm" is not a valid command.
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| 11:56 | <muppis> Joanet, run ltsp-localapps xterm adn try launch Skype from that terminal so you'll see possible errors.
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| 11:58 | <Joanet> muppis: no errors. I've run xterm too using localapps but whel I launch skype no messages are shown
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| 11:59 | <muppis> That's strange. It should say something in any case.
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| 11:59 | <Joanet> before installing using apt-get I've installed it using the .deb file downloaded from the website
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| 12:00 | I'm thinking about remove it
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| 12:00 | <Joanet> uninstall the first installation, and reboot the server
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| 12:07 | <ltspuser_01> Hello, I'm trying to enable support for USB devices on the client and I'm not getting. Has anyone here ever managed to do this in ubuntu 12.04 or 13.04?
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| 12:08 | <muppis> Which kind of USB devices you want to use in clients?
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| 12:09 | <ltspuser_01> I note that the devices are detected in the client terminal (Ctrl + Alt + F1), using the command fdisk-l. But in the graphical environment (Ctrl + Alt + F7), open the terminal, I can not see the devices using this same command.
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| 12:10 | HD external multifunction (there are several).
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| 12:11 | <muppis> By default your terminal in GUI is runned in server, not in client. That's makes a difference there.
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| 12:11 | <meamy> ltspuser_01: did you use "LOCALDEV = True" in your lts.conf
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| 12:12 | <muppis> USB Mass Storage Devices should be automatically shown in client.
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| 12:12 | <ltspuser_01> I also noticed that the file / var / run / ltspfs_fstab not being created in the terminal.
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| 12:14 | Yes, LOCALDEV=True in lts.conf and user add in fuse group.
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| 12:16 | I've read hundreds of tutorials installation. Have followed all the steps. Not seen any tutorial using Ubuntu 12.04 but, older versions of Ubuntu. I am suspicious that it may be a bug.
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| 12:17 | <alkisg> ltspuser_01: What's the output of `sudo ltsp-info` on your server? Put that to pastebin.com
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| 12:18 | <ltspuser_01> Get it to work by following this article: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp however, I believe that this procedure is for fat clients to thin clients and not
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| 12:20 | <alkisg> ltspuser_01: do you have ltspfsd installed on your server?
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| 12:21 | <ltspuser_01> I have ltspfs installed in a server. ltspfsd not.
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| 12:22 | My pastebin http://pastebin.com/bnPRHXiV
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| 12:24 | <alkisg> ltspuser_01: errr you followed ltsp-pnp, and yet you're using a chroot?
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| 12:25 | That shouldn't be the case... ltsp-pnp basically means "don't use a chroot"
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| 12:26 | ...and actually you have 2 chroots...
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| 12:26 | OK, first step, decide on what you want to do. How many chroots? 0, 1, or 2?
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| 12:27 | <ltspuser_01> No. What is that saying quiz using ltsp-pnp all functional. But I noticed that the size of the image created is much larger than in the default installation. This probably. Prevent many customers carry the system out of memory. Then reinstalled everything from scratch without following ltsp-pnp
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| 12:28 | 2 chroot (1-32 bits and 2 64 bits)
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| 12:29 | <alkisg> ltsp-pnp does generate a big image because it can be used for fat clients too, but that doesn't have any bad effect on client memory, e.g. an 128 mb client may boot from a 5 Gb image without problems
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| 12:29 | Why have 2 images just for thin clients?
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| 12:29 | What's wrong with using only the 32bits pae one?
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| 12:29 | <ltspuser_01> Do not use chroot as I understand it creates a complete picture of the entire system. This would not work on clients with low memory. Correct?
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| 12:30 | <alkisg> No, not correct
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| 12:30 | Can you boot a client with 128 mb ram, if it has a 500 Gb hard disk?
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| 12:30 | Sure
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| 12:30 | The hard disk size is not related to memory issues
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| 12:30 | The ltsp network disk is not loaded in ram
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| 12:31 | Its "sectors" are accessed whenever the clients need them, one by one
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| 12:31 | Second question: do you only have thin clients, or are you planning to have localapps and fat clients too?
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| 12:31 | <ltspuser_01> Because customers have 32 and 64 bits. Define the dhcpd.conf which the image will load each client.
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| 12:32 | <alkisg> Why? An 64bit thin client can run just as fast using a 32bit ltsp image
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| 12:32 | So why have the overhead of maintaining 2 images?
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| 12:33 | <ltspuser_01> I thought that by doing so, customers would have more 32-bit performance. But nothing prevents use only 1 chrrot.
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| 12:33 | <alkisg> Second question: do you only have thin clients, or are you planning to have localapps and fat clients too?
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| 12:37 | <ltspuser_01> I only have thin clients. Not pretend to have Fat Clients. Local APPS (still not sure, can occur).
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| 12:38 | <alkisg> OK, so, I think you should NOT be using ltsp-pnp, and that you should only have one i386 chroot
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| 12:38 | Now, are you trying with the amd64 chroot or with the i386 one?
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| 12:38 | <ltspuser_01> Okay, I can work with only one image. I will change it here.
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| 12:41 | <ltspuser_01> Already tested in two. Now I'm testing the i386 chroot. Just for clarity, I am not following ltsp-pnp ok at the moment. As I mentioned a previous test.
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| 12:42 | <alkisg> OK
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| 12:46 | <ltspuser_01> Ok removed the 64-bit image. Will work only with the 32-bit image now. But this does not change much my scenario because it will enable the usb devices. Is that even having read all the tutorials, I left something out in the installation?
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| 12:47 | <alkisg> Let's start the troubleshooting now
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| 12:48 | !screen_02
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| 12:48 | <ltsp> screen_02: To get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using_a_shell_SCREEN
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| 12:48 | <ltspuser_01> I know it is not usual, but it would be too much to ask ssh access for a closer look? This server is still in the testing phase, so would have no problems for me. There are already three weeks of research and not advancing.
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| 12:48 | <alkisg> Get a local root shell on the client, and run `udevadm monitor` there, and then insert the usb device
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| 12:48 | ltspuser_01: do you happen to have epoptes installed?
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| 12:50 | <ltspuser_01> epoptes??
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| 12:51 | A shell is active in my lts.conf
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| 12:51 | I will run the command and the device usb stick.
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| 12:53 | * alkisg is kinda busy to help via ssh/vnc right now, maybe in an hour or so... | |
| 12:55 | <ltspuser_01> ok, no problem. I understand.
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| 12:55 | Just a minute, I'll get a new one and restarting terminal.
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| 13:01 | <sfrique> Hello
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| 13:01 | <ltspuser_01> sorry, I'm having trouble connecting the customer. It starts to load and fails in mounting of directories. Just a little more and fix this.
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| 13:01 | <sfrique> can anyone help me?
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| 13:02 | i have some questions about watching videos
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| 13:04 | <Hyperbyte> !ask
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| 13:04 | <ltsp> ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least a full hour after asking a question, as not everybody constantly monitors the channel.
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| 13:04 | <ltspuser_05> I'm using ltsp 5.3.7 on Ubuntu 12.04 amd64. I've a NAS with CIFS. I've like to mount home user on this share. Is-it possible ?
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| 13:05 | <Hyperbyte> ltspuser_05, from an LTSP standpoint, sure. I've heard some DE's like KDE have problems with networked home dirs though. But it's certainly possible.
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| 13:08 | <sfrique> Can a thin client watch a youtube video without lag? I have 100mbs link.
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| 13:10 | <meamy> sfrique: you have to start firefox as localapp, Flash over a remote X connection does not realy work out
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| 13:10 | <ltspuser_01> My client now no longer rises (rs). I will restart the server to see if it resolves. This will cause me to fall in chat (I'm posting server). This brings me back to restart .. Thank you!
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| 13:12 | <sfrique> meamy, so it is a know issue? i can't use it wel? the problem is that my local client will not be able to run firefox wel enough.
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| 13:12 | <ltspuser_05> By now, home is mount via ssh to ltsp server, then the cifs'share is mount. Problem : it's ok, but the mount is on the server and not on the client. I've used /etc/security/pam_mount.conf.xml to do that.
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| 13:13 | <meamy> sfrique: yep at least for me, on all my clients firefox runs local
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| 13:14 | <sfrique> and localy it runs ok?
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| 13:14 | <Hyperbyte> sfrique, it's not a known "issue". It's logical. A thin client runs all it's software on the server. If you're going to play a HD video over the network and you expect it to run flawlessly, you'll need more than 100mbit
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| 13:15 | <sfrique> Hyperbyte, that is my question, if i have more bandwith it run flawlessly ?
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| 13:15 | <Hyperbyte> I have gigabit here and YouTube plays fine, as long as I don't go full screen. We have 1920xx1080 screens here, so playing a fullscreen video in realtime over network would eat incredibly much bandwidth.
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| 13:16 | <sfrique> Hyperbyte, thanks i was thinking of it, but having all thinclient gigabit ethernet would not be so easy
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| 13:16 | <Hyperbyte> sfrique, you'll have to calculate. :) Bandwidth used for one frame, times the amount of frames per second, is bandwith used.
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| 13:16 | <sfrique> it might be simple try to go with local apps even eith crapy hardware..
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| 13:16 | <Hyperbyte> sfrique, well, here's some ideas.
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| 13:17 | If it's only about YouTube, you could install a local YouTube player on the clients. Then you search videos via that player, and not via www.youtube.com.
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| 13:17 | <sfrique> also cross our minds, but problem would be the users..
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| 13:17 | <Hyperbyte> You could also install a plugin in Firefox which makes YouTube support X video (this writes the video frames directly to the X buffer, removing -a lot- of network overhead)
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| 13:18 | <sfrique> there is this plugin?!?!?
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| 13:18 | let me look for it
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| 13:18 | Hyperbyte, do you know such plugin?
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| 13:19 | <Hyperbyte> You could also run Firefox as localapp, eliminating any network issues alltogether, but this requires beefy machines, as Firefox is a resource hog. Alternative might be using a different browser.
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| 13:20 | <sfrique> Hyperbyte, i guess best choise here it to see if the plugin you talk about work, if not, g oto local youtube player.. if dont work also, go to localapp... guess this will be my plan!
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| 13:20 | thanks for the help.
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| 13:21 | <Hyperbyte> sfrique, http://www.youtube.com/html5 <- start there
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| 13:21 | Whatever you're going to do with Firefox plugins, has to eliminate flash.
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| 13:22 | Since YouTube supports HTML5, this would be your way to go.
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| 13:22 | <sfrique> i just wanted to know if watch you tube is as hard as i am experience
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| 13:22 | i had tried html5, still uses lots of bandwith
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| 13:23 | <alkisg> !flash
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| 13:23 | <ltsp> flash: Yes, flash sucks. Make sure you have LDM_DIRECTX=True in your lts.conf file, or if it's just youtube you're after, try some flash replacing plugin like https://addons.mozilla.org/el/firefox/addon/161869/ (per user installation, gecko-mediaplayer is also needed).
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| 13:23 | <sfrique> from my tests, with 300mbs am able to watch youtube video on full screen with 1280x960, still litle floppy but better than nothing
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| 13:23 | <alkisg> That one uses xvideo, so it's possible to watch youtube fullscreen even on 100 mbps
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| 13:23 | <Hyperbyte> sfrique, for me, with 1920x1080 and HTML5 it works flawlessly even fullscreen - surprise! :)
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| 13:24 | <sfrique> alkisg, thanks!
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| 13:24 | <sfrique> Hyperbyte, good! it migh me my thin client that is very bad hardware hahaha
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| 13:24 | <alkisg> But of course the downside is that it's not as polished as native flash or html5 video...
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| 13:24 | <sfrique> alkisg, i guess it would not be a problem
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| 13:24 | <alkisg> Youtube HD fullscreen needs 2 gbps
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| 13:25 | So it's not doable with gigabit ethernet even for a single client, without dropped frames...
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| 13:25 | <sfrique> alkisg, the addon doesnt exist
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| 13:26 | <alkisg> Hmm too bad it was a nice one... this threads proposes a replacement: http://ubuntuforums.org/showthread.php?t=2050737
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| 13:26 | ...haven't tried it though
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| 13:26 | <sfrique> alkisg, already had Direct x true
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| 13:27 | <alkisg> 1920×1080×4×30 = 248832000, i.e. 2.5 gbps, you won't be able to watch full screen HD video that way even over gigabit lan
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| 13:27 | <sfrique> alkisg, i will look for alternatives for flash
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| 13:27 | <alkisg> http://linterna-magica.nongnu.org/#what-is-it
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| 13:28 | Start from that one
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| 13:28 | <sfrique> reading about already
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| 13:28 | i am only afraid of what it does when is not a video..
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| 13:28 | <alkisg> It's supposed to have good enough logic to only match video players
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| 13:29 | ...but, do expect some rough edges...
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| 13:29 | !forget flash
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| 13:29 | <ltsp> The operation succeeded.
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| 13:29 | <alkisg> !learn flash as Yes, flash sucks. Make sure you have LDM_DIRECTX=True in your lts.conf file, or if it's just youtube you're after, try some flash replacing plugin like http://linterna-magica.nongnu.org
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| 13:29 | <ltsp> The operation succeeded.
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| 13:30 | <sfrique> thanks for all help
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| 13:31 | gonna start to look for alternatives hahaha
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| 13:35 | <Hyperbyte> alkisg, are you sure the addon is needed still?
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| 13:36 | With HTML5, I can watch fullscreen video without problems
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| 13:36 | At 1920x1080
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| 13:36 | Maybe Firefox's HTML5 player is compatible with xvideo now out of the box?
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| 13:37 | Hrm, with another video it stutters again... whatever...
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| 13:38 | Who needs YouTube, anyways.
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| 13:39 | <alkisg> Hyperbyte: I don't think firefox is using xvideo for html5 playback... it'd be very nice if it did though
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| 13:39 | Also, (last tested a year ago), firefox cpu usage was very high for html5 videos
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| 13:40 | E.g. 90% for html 5 video, 5% for gecko-mediaplayer plugin
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| 13:40 | (of course that depends on cpu, note only the ratio there...)
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| 13:42 | <Hyperbyte> Firefox is such a resource hog. :(
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| 13:53 | <alkisg> It's the codecs, google chrome cpu usage was much lower
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| 13:53 | Something about codec licenses there, didn't dig into it...
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| 14:10 | <lifeboy> This may not quite be LTSP, probably routing, but: I upgraded an LTSP Server from Ubuntu 10.10 to 12.04 and replaced isc-dns-server with dnsmasq. I had firestarter installed and removed it, since I didn't really need it. I think firestarter was handling the routing, since the clients cannot "see" past the server interfaces now. I do have "net.ipv4.ip_forward=1" in /etc/sysctl.conf though. What am I missing?
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| 14:11 | The get proper ip addresses and their gateway and dns server settings are correct
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| 14:12 | They get...
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| 14:13 | <alkisg> sudo iptables -t nat -A POSTROUTING -j MASQUERADE
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| 14:20 | <lifeboy> alkisg: Yes, that did it. I had to do that after removing firestarter, right?
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| 14:20 | <alkisg> Right. Does dnsmasq work fine now without firestarter?
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| 14:22 | <lifeboy> it seems to yes. I had some issues getting /etc/resolv.conf to keep the dns server, so I simply added the server to /etc/resolvconf/resolv.conf.d/head, which I suppose is a bit of a kludge, but at least it now sticks
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| 14:22 | The thin clients boot, but only into initramfs.
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| 14:23 | unfortunately they people on the other end have now gone home, so I can't get someone to push buttons there still tomorrow morning...
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| 14:23 | <lifeboy> till tomorrow morning.
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| 14:26 | * unkmar is back. | |
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| 14:49 | <ltspuser_08> I'm back. The site was inaccessible to me (not sure why).
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| 14:50 | <ltspuser_08> I used the command udevadm monitor and stick the usb device, note the device is usually added. The same happens when I remove the USB device, it removes it.
| |
| 14:52 | In the shell, I observe that the devices are recognized. The problem is grávica client interface. It's like he's showing only devices the server and not the client.
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| 14:53 | <vagrantc> that's normal
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| 14:53 | on a thin client, you're logged into the server.
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| 14:54 | it only sees devices on the server
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| 14:54 | using ltspfs, it will mount devices in the server's /media/<username>/<devicename>
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| 14:54 | <ltspuser_08> If the devices are seen by the shell of the client, the problem seems to be with the ltspfsd, which is responsible for mounting it.
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| 14:54 | <vagrantc> what is gravica, anyways?
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| 14:55 | ltspuser_08: user in the fuse group?
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| 14:57 | <ltspuser_08> sorry. it's graphical interface in a client. I am using a translator, sorry for any errors.
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| 14:57 | Yes. User in the fuse group
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| 14:58 | <vagrantc> ltspuser_08: when you plug something in, does anything show in /media/<username>/ ?
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| 14:58 | <vagrantc> ltspuser_08: you must be using a pretty good translator :)
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| 15:00 | <ltspuser_08> Now I use the command ls-la in / media directory and the username appears, but there is nothing in it.
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| 15:00 | <vagrantc> what sort of USB device?
| |
| 15:01 | <ltspuser_08> Right now I am connecting an external hard drive.
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| 15:02 | <vagrantc> how is it partitioned, what sort of filesystem is on it?
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| 15:02 | <ltspuser_08> It is usually recognized on a Ubuntu installation location (outside the ltsp).
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| 15:03 | Has more than one. A fat 32 and ext4 another.
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| 15:03 | <vagrantc> ltspuser_08: have you fsck'ed the filesystems recently?
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| 15:04 | sometimes filesystems will fail to mount without an fsck
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| 15:04 | <ltspuser_08> But see, following the guide pnp, he was recognized by the client usually ltsp. But using chroot it does not recognize. The same happened with a multifunction HP.
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| 15:05 | no, I did not. I can do it.
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| 15:06 | but this would not explain for example the fact of not recognizing other devices such as multifunctional.
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| 15:09 | On this page: https://wiki.ubuntu.com/DebugLocalDev there are a number of tests to try to detect the problem. Passed all except the last test. I have typed the wrong command, although not believe it.
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| 15:10 | <vagrantc> multifunction printers won't be recognized
| |
| 15:10 | it will only work with filesystems
| |
| 15:11 | <ltspuser_08> Oops! I forgot. The third step is not the case here. There is created the file / var / run / ltspfs_fstab.
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| 15:11 | <vagrantc> ltspuser_08: and does it contain devices?
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| 15:12 | ltspuser_08: tail -F /var/run/ltspfs_fstab
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| 15:12 | ltspuser_08: and then plug in a device
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| 15:12 | <ltspuser_08> In a client?
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| 15:13 | In the shell of the client?
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| 15:13 | <vagrantc> ltspuser_08: yes
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| 15:14 | <ltspuser_08> The file does not exist.
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| 15:15 | <vagrantc> ltspuser_08: what did you mean when you said "There is created the file / var / run / ltspfs_fstab." ?
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| 15:15 | <ltspuser_08> With names are coming: ltspfsd.pid, ltspfs_token and ltsp-xorg.conf
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| 15:16 | This file does not exist in / var / run (not listed with ls-la).
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| 15:16 | <vagrantc> ltspuser_08: also, what distro and version is this?
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| 15:16 | ltspuser_08: ok, then it's not being recognized by ltspfs
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| 15:17 | ltspuser_08: er, not recognized by udev
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| 15:17 | <ltspuser_08> Ubuntu 13.04. But I've also tried with Ubuntu 12.04 It's the same.
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| 15:19 | but the shell of the client through the command udevadm monitor, see the device being added.
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| 15:20 | <vagrantc> ltspuser_08: USB device?
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| 15:20 | <ltspuser_08> Yes!
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| 15:20 | <vagrantc> there might be an issue with it thinking it's not a removable disk...
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| 15:21 | ltspuser_08: try setting LOCALDEV_DENY_INTERNAL_DISKS=false in lts.conf
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| 15:21 | ltspuser_08: probably in /var/lib/tftpboot/ltsp/i386/lts.conf
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| 15:24 | <ltspuser_08> Ok I made the change. I'm generating a new image.
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| 15:26 | <vagrantc> shouldn't need to generate a new image for changes to lts.conf
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| 15:26 | as long as you're using the /var/lib/tftpboot
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| 15:28 | <ltspuser_08> not work!
| |
| 15:29 | have you seen ltsp on ubuntu 12.04?
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| 15:30 | <vagrantc> not exactly, but it's close enough to Debian that i can fake it :)
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| 15:31 | <vagrantc> ltspuser_08: add SCREEN_02=shell and SCREEN_DEFAULT=02 to lts.conf and reboot ... then we can get a debugging shell with all the variables set...
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| 15:32 | <ltspuser_08> I ask this because I have read many articles and installation there should be no difficulties in the functioning of local devices. All describe this without more details to configure. I feel that may be something with the distribution.
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| 15:33 | <vagrantc> many users use ubuntu 12.04 with localdevs
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| 15:34 | <ltspuser_08> Well, then there is hope (rs). Change made by restarting.
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| 15:35 | reboot is complete. What should I notice?
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| 15:39 | <vagrantc> ltspuser_08: you at the shell prompt?
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| 15:40 | <ltspuser_08> No. It was for the GUI. But I can access it by pressing Ctrl + Alt + F2.
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| 15:40 | <vagrantc> ltspuser_08: it doesn't sound like it's reading your lts.conf, then
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| 15:40 | ltspuser_08: unless you left out the SCREEN_DEFAULT entry...
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| 15:42 | <ltspuser_08> [default] #XSERVER=auto LOCALDEV=True SCREEN_02=shell SCREEN_DEFAULT=02 SCREEN_07=ldm
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| 15:44 | <ltspuser_08> he is reading. I know that is because I had incorrectly specified the first time and saw that it said in the shell "script not found SCREEN_02 = defalut". After he had more correct message.
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| 15:45 | <sbalneav> Morning all
| |
| 15:45 | <ltspuser_08> Morning!
| |
| 15:45 | * vagrantc waves to sbalneav | |
| 15:45 | <vagrantc> ltspuser_08: well, it shouldn't default to the GUI with SCREEN_DEFAULT=02
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| 15:46 | unless SCREEN_DEFAULT is broken on ubuntu...
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| 15:46 | ltspuser_08: so there is a shell running on tty2?
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| 15:46 | ltspuser_08: i.e. ctrl-alt-f2 gets you a shell?
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| 15:47 | <ltspuser_08> Yes!
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| 15:48 | <vagrantc> ok, from that shell, echo $SCREEN_DEFAULT
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| 15:49 | <ltspuser_08> tty=/dev/tty2 root@ltsp21:/#
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| 15:50 | <sbalneav> vagrantc: hey ho
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| 15:53 | <ltspuser_08> Sorry. get it wrong the first time. echo SCREEN_DEFAULT. Result 02.
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| 15:54 | Sorry. get it wrong the first time. echo $SCREEN_DEFAULT. Result 02.
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| 15:57 | <vagrantc> ltspuser_08: ok, sounds like SCREEN_DEFAULT is broken on ubuntu... anyways...
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| 15:58 | ltspuser_08: echo $LOCALDEV_DENY_INTERNAL_DISKS
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| 16:01 | <ltspuser_08> false
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| 16:02 | ops.
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| 16:02 | 1 minute.
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| 16:03 | an evolution here.
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| 16:05 | I had specified the line LOCALDEV_DENY_INTERNAL_DISKS = false as LOCAL_DENY_INTERNAL_DISKS. When you asked to test the shell noticed the error. Fix and rebooted. Now in / media / user, the device appears (although not created icon on your desktop).
| |
| 16:07 | <vagrantc> the desktop icon is highly dependent on desktop
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| 16:07 | worked with gnome2, no idea with gnome3 ... no other desktops really supported it
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| 16:08 | that i know of
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| 16:08 | ltspuser_08: so if LOCALDEV_DENY_INTERNAL_DISKS=false fixed it ... there's something wrong with the detection of USB bus...
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| 16:09 | <ltspuser_08> Just to see if I understood. He is treating this drive as an internal disk?
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| 16:09 | <vagrantc> yes, some external hard drive cages do not mark a device as removable
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| 16:10 | and by default, ltspfs ignores devices that aren't removable.
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| 16:10 | but it should also check if it's on a USB bus, at which point, we assume it's removable...
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| 16:10 | so the USB bus check doesn't sound like it's working
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| 16:10 | <ltspuser_08> is how I fix this? tested now with a pen-drive and it's the same.
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| 16:11 | <vagrantc> ltspuser_08: what's the same?
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| 16:12 | <ltspuser_08> Before it was not mounted on / media / user /. Now with this parameter lts.conf recognizes, but does not go to the desktop. Anyway, still working, ie, since I consider this problem solved.
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| 16:12 | <vagrantc> ltspuser_08: you won't get a desktop icon
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| 16:12 | ltspuser_08: unless you use a desktop that suppotrs it
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| 16:16 | <ltspuser_08> Ok, got it. Friend, you solved a problem that is mistreating me for three weeks. Do not have words to thank you. Now I just need to fix the sound of skype (rs). The audio on the client usually works, but not on Skype (even pointing to pulse audio). But one thing at a time, after all you should have more things to do. (rs). I will try to solve the skype and if you can not, come back here for help again. Hope you do not fill me.
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| 16:19 | <vagrantc> ltspuser_08: good luck!
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| 16:19 | * vagrantc wonders what (rs) is? | |
| 16:19 | <ltspuser_08> Many, many thanks for your help! I'll publish the results here in the forums Brazil.
| |
| 16:20 | <vagrantc> ltspuser_08: so there is one side-effect of that issue, though
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| 16:20 | ltspuser_08: you should know
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| 16:20 | ltspuser_08: with LOCALDEV_DENY_INTERNAL_DISKS=false, if someone boots a laptop with a hard-drive in it, thin clients will access those drives
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| 16:20 | ltspuser_08: and have write access to them
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| 16:23 | <ltspuser_07> No problem. Only customers without HD will have this feature. For this I will specify directly on each client session.
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| 16:24 | <ltspuser_07> Sorry, I fell (rs).
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| 16:25 | Even more. God bless you!
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| 16:25 | <vagrantc> glad to have helped :)
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| 16:28 | <unkmar> since i've had a hdd failure. I'll be back when I have a new hdd.
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| 16:28 | of course, that means I get to completely reinstall all over again. :)
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| 16:28 | good thing it only takes about 2 hours now. From the ground up.
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| 17:06 | <Hyperbyte> !seen knipwim
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| 17:06 | <ltsp> knipwim was last seen in #ltsp 1 week, 6 days, 22 hours, 13 minutes, and 51 seconds ago: <knipwim> !bug
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| 17:08 | <alkisg> 2 weeks down time? quite a bug...
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| 17:08 | <Hyperbyte> You mean a bug on knipwim's part?
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| 17:08 | Because I think the bot is reporting it accurately.
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| 17:09 | Have you seen him?
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| 17:09 | <alkisg> He had said that he's been overworked and needed some time out
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| 17:10 | <Hyperbyte> Right, I got that too.
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| 17:10 | <alkisg> Working on ltsp should be fun, above all, so let him take as much time as he needs :)
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| 17:10 | <Hyperbyte> Going with the two week schedule, we should have a meeting tonight, but there wasn't a date determined in last meeting.
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| 17:10 | <alkisg> Ah
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| 17:11 | <Hyperbyte> So not sure what will happen. I know knipwim didn't send out an invite (not that I'm blaming him, I'm just saying...)
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| 17:12 | <alkisg> It's easter vacations here... people stopped working, maybe we should do the same and postpone it for another 2 weeks :)
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| 17:13 | <Hyperbyte> Yeah, see if knipwim turns up meanwhile. :)
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| 17:16 | Meanwhile, I'm doing a PXE installation of Ubuntu 12.04. :-)
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| 17:17 | <alkisg> Piece of cake... did you see my netboot-livecd script?
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| 17:18 | <Hyperbyte> Nope.
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| 17:19 | I actually just did yum -y install tftp-server cd /var/lib/tftpboot/ wget netboot.tar.gz tar -zxvf netboot.tar.gz hack dhcpd.conf.... restart dhcpd.... enable tftpd... done
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| 17:19 | Easier than I expected it to be.
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| 17:20 | <alkisg> Ah, I'm loopmounting the desktop.iso instead
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| 17:20 | It's much faster than downloading packages over the net...
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| 17:20 | <Hyperbyte> Not as much fun though.
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| 17:20 | :)
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| 17:20 | <muppis> But you still need to install updates..
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| 17:21 | * alkisg also has a script to create an updated .iso :D | |
| 17:22 | <Hyperbyte> alkisg has a script for everything.
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| 17:22 | <alkisg> The best one is the one that does total_years--
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| 17:23 | <Hyperbyte> When it's bedtime for his kids, he just launches a script
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| 17:23 | <alkisg> ...but I think I'll keep its implementation closed source :P
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| 17:23 | * muppis uses apt-cacher to keep double downloading minized. | |
| 17:23 | <alkisg> time for beers, /me waves...
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| 17:24 | <Hyperbyte> I bet he just typed ./beers
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| 17:24 | <muppis> :)
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| 17:25 | <muppis> My boss asked me to start play with Raspberry Pi and LTSP soon. :)
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| 17:26 | <vagrantc> i've been pretty-ifiying my howto...
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| 17:26 | <muppis> When I told him about possibility he went back to pc and ordered 10 rpi's..
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| 17:27 | <vagrantc> muppis: http://cascadia.debian.net/trenza/Documentation/raspberrypi-ltsp-howto/
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| 17:27 | <muppis> vagrantc, thanks. I was about to ask that. :)
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| 17:27 | <vagrantc> muppis: but honestly, i'm unimpressed with the rpi as a thin client.
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| 17:28 | muppis: although, i haven't bothered trying to get the proprietary GPU drivers working
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| 17:28 | muppis: that might make a difference
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| 17:31 | <muppis> I think I could try that. Altought I got few more important projects to be finished before I can get my hands on those little things.
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| 17:33 | simpoir_ is now known as simpoir | |
| 17:34 | <muppis> vagrantc, I'll report back to you if I get some improvments. :)
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| 18:17 | <epoptes_user6> salam
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| 18:17 | hello
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| 18:19 | ok
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| 18:20 | <muppis> Impatience..
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| 18:29 | <vagrantc> the hurrier we go, the longer we wait
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| 18:30 | <muppis> Yeah.
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| 20:14 | <kev_j> How would I edit the cmdline for the rpi cmdline.txt file if I use nbd? what I have right now is I added "init=/sbin/init-ltsp root=nbd nbdroot=/dev/nbd0" to the beginning and deleted root= and rootfstype=...
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| 20:17 | <alkisg> Where's vagrantc's how to for rpi? /me hasn't ever booted linux in arm, and is wondering about the boot loaders there....
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| 20:17 | <vagrantc> root=/dev/nbd0 nbdroot=192.168.67.1:/opt/ltsp/armhf ... if i remember correctly
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| 20:18 | it's the same arguments as if you were doing NBD on x86, and having to specify the ip address from the commandline
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| 20:18 | <alkisg> But where do you put those? There's no pxe, is there?
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| 20:18 | <kev_j> ok, wasn't sure if I needed the address in that file... in the readme it only has instructions for nfs
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| 20:19 | you put them in the cmdline.txt file
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| 20:19 | <vagrantc> could probably even get by with root=/dev/nbd0 boot=local nbdroot=/opt/ltsp/armhf if your DHCP server was the same as your LTSP server.
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| 20:19 | alkisg: on the SD card
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| 20:19 | alkisg: on arm, it's highly variable
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| 20:20 | i.e. raspberry pi is a little unusual in that the bootloader code is just some stuff on the sd card...
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| 20:20 | <kev_j> I guess I couldn't really put it in the dhcpd.conf file since it doesn't pxe boot, huh?
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| 20:20 | <vagrantc> yes, but the initramfs still makes a dhcp request
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| 20:20 | you need the kernel+initrd on the SD card, and some settings in cmdline.txt
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| 20:20 | good luck, gotta roll
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| 20:20 | <kev_j> thx
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| 20:21 | <alkisg> Got it, http://cascadia.debian.net/~vagrant/rpi-ltsp-howto.txt
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| 20:21 | <vagrantc> there's a new one
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| 20:21 | cascadia.debian.net/trenza/Documentation/raspberrypi-ltsp-howto/
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| 20:22 | <kev_j> that's the one I am using (the trenza one)
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| 20:22 | <vagrantc> it's slightly prettied up :)
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| 20:25 | <alkisg> Ah, no boot loader needed in the sd card at all...
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