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


Channel log from 23 May 2012   (all times are UTC)

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00:17
<mnevans_>
Hello LTSP world
00:18
I've just updated a system from Ubuntu 10.10 to Ubuntu 12.04 LTS. Whew.
00:18
I created a new user on the fresh install (to a fresh OS disk)
00:19
Then I copied over all the other users by copying the relevant info from /etc/shadow, passwd, group.
00:19
LTSP is working great! But only the install user can log in. Everyone else gets booted back to the login.
00:20
I can login to the console so it is not a password problem.
00:20
<vlt>
mnevans_: Does the homedir exist?
00:20
mnevans_: And is it writable for the user?
00:21
<mnevans_>
@vlt, thanks, yes, /home/user exists.
00:22
Oh - but now you ask - I see that the install user owns all the files! crap.
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00:26
<mnevans_>
I am going to try a chown -R * and chgrp user on /home/user/...
00:28
That fixed it. Many thanks vlt for pointing out the obvious. I only wrestled with that for 2 hours... :|
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00:31
<mnevans_>
I'd better get home ("I'll be home in 15 mins, honey"; "Are those real minutes, or programming minutes?"). Thanks LTSP world.
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00:41* vlt has been there, done that ...
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06:00
<mealstrom>
good morning
06:02
ubuntu 12.04 server. ive got problem when trying to create thin client 10.10 (everything is i386) : error is "parse error on line 9: '~" at update-alternatives: using /usr/sbin/policy-rc.d.ltsp
06:03
<muppis>
I've found incompatibilities between releases, meaning never got older chroot work with newest server.
06:03
<mealstrom>
http://pastebin.com/caYPmEFS
06:03
so i have to run 12.04 client on 12.04 server not older one clients ?
06:04
<muppis>
Saves you fron lot of troubles. :)
06:05
*from. Just cot first cup of coffee for today.
06:07
<alkisg>
mealstrom: why are you trying to build a 10.10 chroot in a 12.04 server?
06:08
<mealstrom>
alkisg: i coudnt build 2 images(10.10) on production server(10.04). ive got test server with 12.04
06:08
<alkisg>
mealstrom: what I mean is why do you want a 10.10 chroot instead of the default 12.04 one
06:10
<mealstrom>
alkisg: main programs are sflphone and firefox. sflphone crashes much more often at 12.04. At 10.10 it works normal. Second reason is GUI.
06:11
<alkisg>
...but a thin chroot would use the 12.04 GUI anyway
06:11
Are you using fat clients?
06:11
<mealstrom>
trying to set up few think ones to test productivity
06:11
what are faster and stable
06:12
<alkisg>
Sorry, I don't understand you
06:13
<mealstrom>
i've got fat clients which are using ddr1. I've made upgrade for server (dd3, 4-core, ubuntu-server 10.04 i386) and want to set up some thin clients to test would they work faster or not than fat ones
06:22
hah. Same error when trying to build client 12.04_386 on 12.04_386 server. What now ?
06:23
how to find out the problem /
06:24
<alkisg>
"want to set up some thin clients to test" ==> (09:11:15 πμ) alkisg: ...but a thin chroot would use the 12.04 GUI anyway
06:24
What's the output of this? sh -n /usr/share/ltsp/scripts/policy-rc.d.ltsp
06:26
<mealstrom>
print nothing
06:26
i can pastebin it
06:27
3 lines: if [ "$LTSP_HANDLE_DAEMONS" = "false" ]; then exit 101; fi
06:27
<alkisg>
And what command line are you using for ltsp-build-client?
06:27
(also, why 10.10 which is unsupported, instead of 10.04 which is still supported?)
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06:30
<mealstrom>
alkisg: sflphone 1.0.0 doesnt run on 10.04 thats all. now i'm trying to install 12.04 to just test thin client. Im building clients with config file. configfile : http://pastebin.com/BDAg60fe
06:31
<alkisg>
Try removing the dist line
06:31
<mealstrom>
ok
06:37
same error
06:39
<alkisg>
Ah, ok, I just saw your initial pastebin, the problem isn't in update-alternatives but afterwards
06:40
Try the debug option of ltsp-build-client
06:41
or set -x at the top of it
06:43
<mealstrom>
ive run it this debug. waiting for error
06:49
DEBUG: Loading plugin: after-install: /usr/share/ltsp/plugins/ltsp-build-client/Ubuntu/010-debconf-seeds.
06:49
after this line error
06:50
look like ive found problem with ~ at debconf seed
06:50
my bad, as usual
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08:07
<bauerski>
Hello. What about local printing? I now, I now, on Debian it's a bug. But now, I've got Kubuntu 12.04, and local printer still doesn't work. On my production server I've got ~40 users and 5 local printer (on Debian Testing) - this "bug?" is so frustrating.
08:08
<alkisg>
bauerski: are you talking about this bug? https://bugs.launchpad.net/ltsp/+bug/996533
08:09
<bauerski>
Exactly.
08:09
<alkisg>
So the problem in Kubuntu is that clients don't boot?
08:09
And is it the same in debian testing?
08:09
<bauerski>
No client booting OK.
08:09
<alkisg>
Then you're not talking about that bug
08:09
What do you have in your lts.conf?
08:11
<bauerski>
PRINTER_0_DEVICE=/dev/usb/lp0
08:11
PRINTER_0_TYPE = U
08:12
<alkisg>
Do you have [Default] on top of that?
08:13
Also, is /dev/usb/lp0 actually correct?
08:15
<bauerski>
Yes, lts.conf is good. But during start jetdirect port is open, and after few seconds:
08:15
PORT STATE SERVICE
08:15
6007/tcp open X11:7
08:15
16001/tcp open unknow
08:15
no port 9100
08:16
<alkisg>
And is there a /dev/usb/lp0 device on the client?
08:16
<bauerski>
yes
08:17
And printer is connect and up.
08:18
<alkisg>
I wonder why it doesn't make your client hang on boot :)
08:18
Is your chroot an old one, maybe upgraded? What are the kernel parameters in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default ?
08:18
<bauerski>
one moment
08:20
Host is amd64, client i386.
08:20
label ltsp
08:20
kernel vmlinuz
08:20
append ro initrd=initrd.img root=/dev/nbd0 init=/sbin/init-ltsp quiet splash plymouth:force-splash vt.handoff=7 nbdroot=:ltsp_i386
08:22
<alkisg>
Looks good... can you get a local shell on your client and try those?
08:22
eval "$(getltscfg -a)"
08:23
. /usr/share/ltsp/init-ltsp.d/50-jetpipe
08:23
...and see if there are any errors in the output
08:23
<bauerski>
wait terminal reboot
08:24
<alkisg>
Btw I think all those PRINTER* lts.conf options should be replaced with RCFILE_xx="jetpipe <options>" lines instead
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08:24
<alkisg>
That way one can just look at the jetpipe manpage, I don't think there's need to bisect it into lts.conf options
08:26
<bauerski>
no error
08:26
<alkisg>
And the printer works fine after that?
08:27
<bauerski>
no port 9100 open (in nmap)
08:27
<alkisg>
getltscfg -a
08:28
Does that return the expected settings?
08:29
<bauerski>
yes, export PRINTER...
08:29
<alkisg>
ps aux|grep jetpipe, is that empty?
08:30
And finally, if that's indeed empty, try running: jetpipe /dev/usb/lp0 9100
08:31
<bauerski>
empty
08:32
now port is open
08:33
<alkisg>
OK, try removing all the printer options from lts.conf and putting only this:
08:34
RCFILE_01="jetpipe /dev/usb/lp0 9100"
08:36
<bauerski>
OK, i'll trying. But f***g hp win$ printer not working. I'll use another printer Xerox 8200. Wait a moment.
08:37
Printer warming up 15 min. :-)
08:40
<muppis>
Is there really some printer which is not suppoerted by hplip ?
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08:52
<bauerski>
Sorry, after RCFILE_01="/usr/sbin/jetpipe /dev/usb/lp0 9100", port disappears after full boot.
08:56
<alkisg>
cat /etc/rc.local
08:56
Is the jetpipe line there? If so, is it valid?
08:57
<bauerski>
correct line
08:58
ręce opadają (pl) hand sink
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08:59
<alkisg>
So if you now just run /etc/rc.local, jetpipe starts properly?
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09:03
<bauerski>
I think jetpipe start during boot (in nmap port is open), but next after few seconds no jetpipe open.
09:04
I'm going bananas ;-)
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09:35
<knipwim>
alkisg: shouldn't the client symlinks (ltsp-client-common-functions, and distro specific ones) be fixed?
09:36
most of them broke when moving from share to share/ltsp
09:37
<alkisg>
knipwim: I think vagrantc doesn't like the "fake" symlinks and prefers them to be done in the packaging instead
09:38
So afaik he deleted the debian ones, and expects the other distro maintainers to delete theirs, again afaik
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09:39
<alkisg>
In other words, the common functions will be in common/ and there won't be any ltsp-client/server-common-functions symlinks in the source tree, but they'll only be in the distro packages
09:39
(not as symlinks but as actual files)
09:40
Maybe a makefile could help there, to generate the copies on the fly before the package building process
09:40
<knipwim>
or just package from /common indeed
09:41
i think ill do that for gentoo
09:45
<alkisg>
knipwim: if you're going to commit related stuff, just delete the broken symlinks, I don't think anyone will use those
09:52
<knipwim>
cool, i'll do that tonight
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13:00
<^rooker>
Hello. I'm having problem with RAM-exhaustion-lockups, but X_RAMPERC seems to have no effect.
13:01
Could anyone tell me in which ltsp-script the X_RAMPERC variable is evaluated, or if there's any known issue with LTSP5.2 on Debian Squeeze?
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13:11
<^rooker>
/quit
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14:13
<mealstrom>
ive got question about lts.conf xrandr_somethig_0= how can i discover what to put there ? can you help me with this? or how can i convert working xorg.conf to xranrd parameters at lts.conf ?
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14:21
<alkisg>
Put your xorg.conf to pastebin
14:22
Otherwise, `man xrandr` should give you all the needed info
14:28
<mealstrom>
xorg.conf http://pastebin.com/s4KJ8zXy
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14:32
<alkisg>
What's the purpose of this xorg.conf, exactly? Only to specify the nvidia driver? You can do that with X_SERVER=nvidia
14:33
Other than that, you only have 1 monitor etc, I don't see what else would be needed
14:34
<mealstrom>
ive got 2 situation. 1st one -- when using 2 monitors. 2nd one when system doesnt detect resolution properly. For example, this xorg conf sets resolution 1280*1024 and system tryes to set it 2500xSomething
14:36
<alkisg>
To set resolution, you put e.g. XRANDR_MODE_0=1024x768
14:36
To arrange 2 monitors, first boot without any xorg.conf, and arrange them with regular xrandr commands
14:37
Once you manage that, you transfer the xrandr command to lts.conf
14:42
<mealstrom>
ive installed nvidia drivers on thin client. so i have to boot just with X_SERVER=nvidia and XRANDR_MODE_0=1024x768 and then do everything locally, and transfer config afterm right?
14:44
<alkisg>
Yup, you might also need some MODULE_xx lts.conf directive if just X_SERVER doesn't do it
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16:34
<stgraber>
alkisg: do you think you can get epoptes to use something else than vnc4's vnc4server and xvnc4viewer for 12.10?
16:34
I've just spent an hour trying to fix it to build on armhf (one of our target for Edubuntu on 12.10) and it's really quite broken
16:35
the reason of the build failure is something to do with a bug in its builtin copy of Xorg...
16:35
<alkisg>
Hi stgraber, it's currently supporting xvnc4viewer an ssvncviewer if I remember well
16:35
If we change the dependencies on debian/rules to depend on ssvncviewer [armfh], wouldn't that be all that's needed?
16:36
Or even, if xvnc4viewer isn't available, why isn't it pulling ssvnc?
16:36
Ah yeah the Depends line needs | ssvncviewer at the end
16:37
<stgraber>
what's ssvncviewer? I can't find it in the archive
16:37
<alkisg>
Package name == ssvnc
16:37
It's in epoptes' suggests, but it should be in depends as an alternative
16:38
<stgraber>
any reason not to use it by default?
16:38
it looks more maintained than vnc4
16:39
<alkisg>
xvnc4viewer supports menu disabling
16:39
So if a teacher wants to broadcast his screen and _doesnt'_ want the kids to be able to stop it, it can't be done with ssvnc
16:40
<stgraber>
ah, should be easy to add a command line paramter for that though?
16:40
<alkisg>
In the future we might be able to do a "transparent lock screen overlay" on top of the broadcast, but for now, xvnc4viewer sounds like a better choice
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16:40
<alkisg>
Although xvnc4viewer has problems with 24bit and with arm
16:41
To add that option in ssvnc? Dunno how easy that would be to get upstream...
16:41
<stgraber>
because currently looking at the lack of maintenance on vnc4 and the fact that it has unfixed security issues, not to mention bundling a 5 years old X server, I'm very tempted to ask the archive admins to get it off the archive completely
16:42
<alkisg>
ssvncviewer is pretty fine RAM-wise too, http://www.epoptes.org/documentation/vnc
16:42
No change is needed in epoptes-client, it already supports ssvncviewer if it's installed, but a small change is needed in epoptes (server), in gui.py
16:43
To check if ssvncviewer is installed, and if so, use it
16:46
stgraber: could you file a bug about making ssvncviewer the default option?
16:46
And, when do you need it?
16:53
<stgraber>
we'll need that by feature freeze I'd think
16:53
one annoyance with ssvnc is that it'd bring java to the edubuntu packageset ...
16:55
<alkisg>
Ouch recommends?! Maybe the packager can make that "suggests" instead?
16:55
Afaik that's only for people that want to use it from their browser, not for everyday use, so "recommends" is too much
16:56
<stgraber>
yeah but we'll get it as build-depend so it'll end up in our packageset regardless
16:58
alkisg: can you write me a wiki page or an e-mail with exactly what feature you need in your vnc client? I seem to remember it being basically the listen mode, fullscreen and no possible user interaction
16:58
<alkisg>
stgraber: yeah, and listen mode should also support multiple clients
16:59
(for the "server" part to be able to assist many students)
16:59
And basically low ram usage
16:59
<stgraber>
I'd try to implement one using gtk's vnc library, it might end up using a bit more memory but wouldn't depend on anything weird and that library is in main and is clean at least
17:01
<alkisg>
We plan to use libvncserver in the future, the one x11vnc uses
17:01
But our next "major" update will be for 14.04...
17:01
<stgraber>
I'll see how easily it's to write something like gvncviewer but without any UI and just starting in listen mode by default, should be fairly easy to add whatever you need on top of that then
17:01
<alkisg>
For now the focus is on getting LTSP to work without a chroot
17:03
user 5832  0.9  0.2  10412  7432 pts/1 S    18:43 0:01 ssvncviewer localhost
17:03
user 5915 11.0  0.5 118244 15884 pts/1 Sl   18:44 0:11 gvncviewer localhost
17:03
That's 100 MB more, even for VSZ it's bad for 64/128 MB RAM clients
17:04
http://libvncserver.sourceforge.net/
17:04
Last release 2 weeks ago
17:07
<stgraber>
I'll have a look at that one then, it's in main too
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17:12
<bieb>
I installed ltsp with Ubuntu 12.04, I have to connect to Active directory, so I installed pbis (Likewise-open's replacement), I am connected to the AD domain, I can run the commands from command line to verify AD (find-user, find-dc, etc) and can ssh into the ltsp server with my AD credentials. BUT.. on the server I can not get login as an AD user, there is no option for it, I see the user that I created when installing Ubuntu, and guest session. There is no op
17:15
<wim_>
hi, i tried to create a new ltsp client environment with 'ltsp-build-client --purge-chroot --dist wheezy --chroot wheezy'. now i get this error
17:15
E: Release signed by unknown key (key id AED4B06F473041FA)
17:15
error: LTSP client installation ended abnormally
17:15
I installed already a few images weeks ago and I never had this error. I have the latest wheezy updates. How can I solve this? TXS
17:18
<alkisg>
stgraber: did you have any chance to check the ltsp packaging? I'm going to do some tests this weekend, and it'd be better to do it with your packaging rather than my local/proposed one...
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17:24
<stgraber>
alkisg: I'll try and spend some time on it later this week
17:24
btw, I have a working vnc client using libvncclient with support for -listen, based on their example SDL one
17:25
<alkisg>
Cool, I'll tell Phantomas to work on it in the summer
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17:33
<knipwim>
alkisg: with your permission, i'll remove the ltsp-server-common-functions symlink as well
17:33
that or keep ltsp-client-common-functions as well, for consistency
17:40
<alkisg>
knipwim: no need for my permission!! Go ahead!
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17:55
<ankit_>
Hy I am getting error in iTALC while running it
17:55
<alkisg>
ankit_: distro/version?
17:55
<ankit_>
it says there is no service running on this version
17:56
@alkisg it is opensuse
17:56
12.1
17:56
and italc is 1.0.13
17:56
<alkisg>
Hmm ok no idea then, is the problem ltsp related, or you could ask this at e.g. #opensuse instead?
17:57
<ankit_>
I was suggested this channel for the error so did ask here
17:57
but then also i will try on opensuse
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18:10
<suporte>
Ola podem me ajudar
18:10
Auguem estou com um problema meo epoptes so controla ate 24 maquinas onde trabalho uso 36
18:16
<alkisg>
suporte: english?
18:17
<stgraber>
I don't think we have any epoptes expert who understands Portugese around here so you'll have to try that again in English ;)
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18:18
<ltspuser>
Hello everyone
18:19
<alkisg>
Hello
18:19
<ltspuser>
I have some problems with my LTSP Server on Ubuntu..... am I in the right place?
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18:20
<alkisg>
Yup, ask what you need
18:21
<wim_>
hi, i tried to create a new ltsp client environment with 'ltsp-build-client --purge-chroot --dist wheezy --chroot wheezy'. now i get this error
18:21
<ltspuser>
Ok, I already setup my ltsp server on ubuntu 10.04 ( I just fowllow instructions on a website DiskLess.com), I starup a thin client, everything looks like is running ok
18:21
<wim_>
E: Release signed by unknown key (key id AED4B06F473041FA)
18:21
error: LTSP client installation ended abnormally
18:21
I installed already a few images weeks ago and I never had this error. I have the latest wheezy updates. How can I solve this? TXS
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18:22
<ltspuser>
But in the thin clien is asking me for a username an pass
18:22
I add a new user on the server (adduser "sample-user")
18:23
with the corresponding pass, but when I tried to login usuing that user It wont let me
18:23
<alkisg>
ltspuser: do you see a logon attempt at the server's /var/log/auth.log ?
18:24
<ltspuser>
mmm I havent check that yet..,. let me see it
18:24
hold on
18:25
yes I have a log
18:26
here it is: http://pastebin.com/1mXKhuNs
18:28
<alkisg>
!ltsp-update-sshkeys
18:28
<ltsp>
alkisg: ltsp-update-sshkeys: If you changed your server IP, you need to run ltsp-update-sshkeys, and if you're using NBD (Ubuntu) you also need ltsp-update-image afterwards
18:28
<alkisg>
ltspuser: check if this is your problem ^
18:29
<ltspuser>
I'm trying that right now :)
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18:31
<ltspuser>
it said: veryfing password, please wait... (stays there for a while..) then said "no response from server... restarting
18:33
<alkisg>
Did you run ltsp-update-sshkeys, ltsp-update-image, and rebooted the client?
18:33
<ltspuser>
le tme check,
18:34
<alkisg>
bbiab
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19:44
<markit>
hi alkisg, I've to talk with for a private problem
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19:54
<alkisg>
Hi markit, sure
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