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


Channel log from 8 October 2010   (all times are UTC)

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00:05
<jimjimovich1>
anyone experience a problem where all local apps (including a shell on screen 2) freeze yet you can still use all apps on the server?
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01:35
<jimjimovich1>
any ideas why i a client would only boot all the way to the login screen about 20% of the time and the rest of the time get stuck on the purple ubuntu boot screen?
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01:37
<alkisg>
Remove "quiet splash" from pxelinux.cfg/default to find out
01:37
<muppis>
jimjimovich1, take 'quiet splash' off from /var/lib/tftpboot/ltsp/<arch>/pxelinux.cfg/default
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01:44
<jimjimovich1>
it stop so on "Setting up LTSP client"
01:46
<alkisg>
Consistently? I.e. it either boots ok, or hangs at that point? Or it can hang at other booting points too?
01:46
<jimjimovich1>
so far, it either boots or stops at that point
01:47
i removed all entries for that client in lts.conf to see what happens now
01:49
now it stops after running scripts/init-bottom
01:51
never gets to "setting up ltsp client"
01:51
other clients are booting with no problems (and this one booted in the past, and still randomly does)
01:52
<alkisg>
Sounds like a network problem then
01:52
Either your cabling or nbd-proxy or something similar
01:52
!compiz
01:52
<ltspbot>
alkisg: "compiz" :: if compiz is giving you problems, one way to disable it for all users is: sudo gconftool-2 --direct --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory --type string --set /desktop/gnome/session/required_components/windowmanager metacity
01:52
<alkisg>
(that was unrelated :D)
01:53
<jimjimovich1>
now it's booting
01:53
very strange
02:04
<muppis>
jimjimovich1, do yo have any idea from nic's chipset?
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02:07
<jimjimovich1>
muppis: i believe it's realtek (built in on intel motherboard) it's gagabit
02:09
<muppis>
jimjimovich1, you should atleast try some other nic.. I don't rely much on Realtek..
02:11
<gnunux_>
hi
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02:25
<Juju55555>
Hi ! I hope someone could help me with this issue : On Ubuntu 10.04, after logging in on thin client, some of my users only have wallpaper and mouse pointer, no icons and no menus. Any ideas ?
02:26
<Appiah_>
check /var/log/messages
02:26
should give you an idea on what's going on
02:28
<Juju55555>
Ok, I'll check that ! Thank you for your help ;-)
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02:29
<Appiah_>
if it's some users compare the homedirs
02:29
with ls -al
02:29
could be a permission issue
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02:45
<jimjimovich1>
if i'm not using NFS, should the client be running nfs-top and bottom?
02:47
<alkisg>
Yes
02:47
Did you check your cabling, e.g. connect the client to another network socket?
02:47
<jimjimovich1>
i got an error nsb0 unknown partition error
02:48
<alkisg>
That's normal
02:48
<jimjimovich1>
okay
02:48
yeah, we've checked the cabling, and have other clients booting from the same switch
02:48
it seems to be kinda random to if it boots or not
02:48
<muppis>
But something causes that.
02:50
<jimjimovich1>
so, i take it we should invest in good network hardware ;)
02:51
<muppis>
jimjimovich1, can you try to switch cables between working and problematic client?
02:52
At the client end.
02:52
<jimjimovich1>
i just changed the switch and now it's consistently booting
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05:53
<muppis>
Oh F*... Idiot typo in ldif -files and whole LDAP unusable.
05:54
Luckily fresh installation so easy to recreate.
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11:51
<mgariepy>
just commited rev #1778 in ltsp-trunk and rev #1304 in ldm-trunk to fix ltsp-remoteapps
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12:18
<mgariepy>
anybody have an idea why sometimes chroot /opt/ltsp/i386 starts bash and sometimes not ?
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13:23
<Hurga>
Hi. I'm using Ubuntu 10.4 LTSP and I'm having problems with kiosk mode. Xorg gives me the error "Invalid argument for -config". I get the impression this can't ever have worked... sor am i making sikky mistakes?
13:24
*or am i making silly mistakes
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15:16
<Kyle__>
NFS question... how do you get the fat clients to mount NFS4?
15:18
<alkisg>
I think you'd need to patch ltsp-init-common, it currently contains "if ! mount -t nfs -o "$NFS_HOME_OPTIONS" "$NFS_HOME" /home; then" ==> so that won't do for nfs4
15:18
See also https://help.ubuntu.com/community/NFSv4Howto
15:20
<Kyle__>
alkisg: Ahh ok. I also noticed that many (common imo) nfs optoins in lts.conf cause it to not work
15:20
:)
15:20
<alkisg>
Like?
15:21
<Kyle__>
tcp, rsize, wsize
15:21
Those were the biggies for me.
15:22
<alkisg>
You mean that using those options on a non-ltsp client work fine, and specifying NFS_HOME_OPTIONS don't work?
15:22* Kyle__ nods
15:23
<alkisg>
...that doesn't seem logical though...
15:23
<Kyle__>
Yes. If I put those in fstab in the image, then just ran "mount /home" in rc.local, they worked fine.
15:23* Kyle__ shrugs
15:23
<alkisg>
How about on the command line, without fstab?
15:23
See the command line above
15:23
<Kyle__>
I wanted to get it working, so I got it working by using a simpler list, then left it aone till now, since things are nice now :)
15:23
yup, it will work fine from the command line as well.
15:23
<alkisg>
With that syntax as pasted above?
15:24
If there's a bug in that line, it'd be easy to fix it upstream...
15:26
<Kyle__>
I just started building a new image with the modified ltsp-init-common :) let me roll back to duplicate the error.
15:27
<alkisg>
Nah, just paste the exact command line that works, to check against the code...
15:28
E.g. NFS_HOME_OPTIONS="tcp,rsize,wsize"
15:28
NFS_HOME="server://home"
15:28
mount -t nfs -o "$NFS_HOME_OPTIONS" "$NFS_HOME" /home
15:28
If that works, then the code should also work
15:32
<Kyle__>
alkisg: It would be tcp,rsize=16384,wsize=8192 or something like that.
15:33
<alkisg>
$ NFS_HOME_OPTIONS="tcp,rsize=16384,wsize=8192"
15:33
$ sudo mount -t nfs -o "$NFS_HOME_OPTIONS" localhost://home /mnt
15:33
(success)
15:34
So I don't know why it wouldn't work for you
15:36
<Kyle__>
alkisg: The last time I did it, home didn't automount. Changed it down to async, and it was fine.
15:36
<alkisg>
OK, if you do it again, check the logs/output etc, afaik it should work
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16:01
<coordinador>
hi, i use ubuntu 10.04, i want to have a system similar to windows and i was thinking in install kde but i dont know how is the performance in ltsp
16:01
...compared to gnome
16:07
<mgariepy>
$ export NFS_HOME_OPTIONS="tcp,rsize=16384,wsize=8192"
16:07
ho
16:07
no my mistake,
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16:18
<Kyle__>
OK this is going to really aggravate me. Now it's working. Makes me question my own memory.
16:20
<coordinador>
anybody who has used kde instead gnome?
16:21
what about performance in ubuntu 10.04?
16:25
<Kyle__>
coordinador: I made a kubuntu image to test out. On same hardware, ehh, I think it's about the same, but it takes a horrendiously long time to launch modern KDE.
16:25
No thought was put towards making it lean & clean.
16:25
<coordinador>
ogh ok thank you, mi goal is the system look like win7
16:27
since the system is part of a educational project
16:28
<Kyle__>
coordinador: Ah. Well, I'll say that it does look more windows-ish. I don't know if that's necessarily a good thing though ;)
16:28
<coordinador>
but the problem is that when users learn here then they go home for practicing, their systems are very different to our linux based system, estethically.
16:28
<alkisg>
coordinador: http://ubuntu.online02.com/node/14
16:28* Kyle__ nods
16:30
<alkisg>
(see the video on the middle of the page :D)
16:30
<coordinador>
thank you alkisg, i was watching that there is a project to make open office similar to msoffice 2007 (ribbon interface )
16:31
sometimes i think that for my situation maybe linux is not the choice... but after four years i still dont give up
16:31
<alkisg>
Ugh, I hope that doesn't work out, I hate the ribbon UI :D
16:32
<coordinador>
me too, unfortunately is the "standard" now, thats my problem, because people here learn with the "old" interface, and then they go home for practicing and they cannot do it because the interface is so different
16:33
<alkisg>
They all buy office at home? Wow.... We give them openoffice here to work on their windows when the office trial expires
16:36
<coordinador>
novice people are cowards and they dont install new software haha
16:39
<johnny>
i found windows techies to be the biggest cowards in that case..
16:39
<Kyle__>
coordinador: What type of hardware are you running on? I've had pretty good luck creating custom sessions that run full-screen VMs of windows XP, 7 and 2008 server, for classes that need it.
16:40
<coordinador>
im running in dell poweredge t310, (quadcore xeon, 8GB, dual gigabit), the boxes are disklessworkstation 1200 (1ghz via, 1gb ram, no hd)
16:44
<Kyle__>
coordinador: Ah. Yea, it's the 1ghz via bit that makes that less possible. Drat. Was hoping it would help.
16:45
<coordinador>
:@
16:45
ok, thank you, what is "Drat" ?
16:47
<alkisg>
Kyle__: why not? Wouldn't it be able to run xp in a 512MB vbox ?
16:48
<coordinador>
if i have a winxp root directory instead /opt/ltsp ?
16:49
<alkisg>
You can serve winxp with iscsi etc, google for it, you don't need ltsp then
16:49
But you'd have to maintain different images for each client
16:50
<coordinador>
humm... in that case, should i buy licenses for each user?
16:50
...or only 1 license :P?
16:50
<alkisg>
Of course
16:51
<coordinador>
oh i see...
16:51
<alkisg>
And they'd need to be corporate licenses afaik - but that's not an #ltsp topic anymore... :)
16:51
<coordinador>
haha ok, well obviously i dont want to stop using ltsp
16:52
<Kyle__>
alkisg: a via eden at 1Ghz is a very weak processor.
16:52
<alkisg>
Kyle__: sure, but XP also runs on Celerons @300 MHz...
16:53
<coordinador>
but my issue, as you know, is that the people here come to learn basics of computing, word processor, internet, folders, files, etc.. and when they go home the system are different
16:53
<Kyle__>
alkisg: Yes, but in the case of being virtualized? They don't have any virt hooks in them. It would be a rather slow experience. I'm not saying unusabnle, but the user experience would be poor.
16:53
coordinador: When they go to work it will be different as well. Work networks & desktops are setup very differently than school ones.
16:53
<alkisg>
I think vbox cuts less that 10% of the real speed, so I'd assume it's like running XP on a 900MHz/512RAM pc, I don't think it would be too bad...
16:54
<Kyle__>
alkisg: It cuts more than that sadly. I use it here all the time :) VBox is good mind you.
16:54
<alkisg>
coordinador: I'm using linux in my schools for 3 years now, I didn't have that problem. Once a student told me she preferred office to openoffice, but when her trial expired, she asked me for an openoffice copy :)
16:54
<Kyle__>
Just not that good. 10% is the slow down you see if you have virt-extensions in your cpu.
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17:06
<coordinador>
sometimes firefox does weird things like when i try to save a picture it doesnt save it, instead i have to drag the picture to the folder
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17:30
<abeehc->
isn't vbox among the ones that won't run without the vt extensions?
17:30
my ltsp is under vmware esxi
17:31
i'd prefer to be using libvirt or even vbox though
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17:33
<Kyle__>
abeehc-: No, vbox runs fine without it.
17:34
abeehc-: Actualy of the runs that run without the extentions it's one of the fastest. With the extentions, eh, they're all pretty compariable speed wise.
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17:35
<abeehc->
i think they all use qemu
17:35
but yeah i live the vbox product sorta; though who owns it now? maybe it's game over
17:35
libvirt/kvm is my favorite though
17:36
<Kyle__>
Eh, I think it's going to keep alive for quite a long time :) at least I hope so!
17:37
<abeehc->
i don't like the idea of a closed source edition
17:37
and no one likes oracle
17:37
hehe
17:37
someone has to steal it away from them, as with oo.org
17:37* Kyle__ nods
17:38
<Kyle__>
Apparently folks have ported a lot of the USB passthrough stuff to the OSE version, so there's less and less reason for the oracle version.
17:38
<abeehc->
gooooood stuff
17:38
vbox was the first outside of parallels to get graphics accel too
17:38
libvirt supports em all though
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17:41
<Kyle__>
abeehc-: Sadly, the CPUS in my lab don't support vt, otherwise my implimentation would have been easier.
17:42
<abeehc->
well I can say it is not fun fighting perf issues with the hypervisor in the middle doing funky things
17:43
struggled with vmware for quite some time before getting everything perfecgt
17:43* Kyle__ agrees
17:46
<Kyle__>
abeehc-: We had most everything on vmware-server in my last job. It was better than nothing, but a bit of a pain.
17:46
At least it saved us from ever having to run windows on hardware.
17:47
<abeehc->
yeah that's pretty much exactly what we do here
17:47* Kyle__ nods
17:48
<Kyle__>
abeehc-: Have you been able to convince them to at least let you officially test other platforms?
17:49* Kyle__ was the one who got them to move to vmware, but never got that far on them trying out other virtualizatin platforms.
17:51
<abeehc->
im in a little shop thankfully
17:51
don't have to do much convincing
17:51
<Kyle__>
cool.
17:51
<abeehc->
once kvm matures all our virtualized linux instances are going there
17:51
well not to say it's not mature yet
17:51
<Kyle__>
I was gonna say.
17:51
<abeehc->
just waiting for a couple tricky features put into libvirt
17:51
as it is, bcakups on esx servers are pretty slick
17:52
not as good with kvm at this point
17:52* Kyle__ sighs
17:52
<abeehc->
at least the hot backups aren't as acheivable
17:52
<Kyle__>
Well, I'm sure someone will come up with a good solution for it.
17:53
<abeehc->
as am i
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