IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 22 August 2010 (all times are UTC)
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| 14:28 | <JustGav> Evening ppl
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| 14:29 | <JustGav> Got a small dilemma
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| 14:30 | <alkisg> Good evening
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| 14:30 | <JustGav> I've got an ubuntu 10.04 install which I then did a apt-get install ltsp-server-standalone, and I've added some local apps, configured lts.conf... however when it boots up it just launches and xterm on the ltsp server... where should I put a link for autostart
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| 14:31 | <johnny> ubuntu 10.04 desktop? or server?
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| 14:31 | <JustGav> It was a server install....
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| 14:31 | <johnny> then you need to install ubuntu-desktop
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| 14:31 | on the server
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| 14:31 | <JustGav> It does what I need it to, just trying autolaunch a localapp
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| 14:31 | <johnny> ah ok
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| 14:31 | then copy a screen scirpt
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| 14:31 | and modify that
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| 14:31 | <JustGav> Oh, I don't want the desktop, I'm simply using it as an alternative to my gpxe-iscsi setup
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| 14:32 | screen script?
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| 14:32 | <johnny> yes, there are ones that load ldm, ones that load rdesktop, etc
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| 14:32 | see the source
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| 14:33 | <JustGav> Ah yes, I did see a few references to rdesktop :) Cheers for that I'll go investigate now :)
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| 14:33 | <alkisg> Which app as a localapp? You don't need a desktop environment?
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| 14:34 | <johnny> you won't be using the LOCAL_APPS setup at all JustGav
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| 14:34 | that's for running them in a desktop environment
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| 14:35 | just the screen script is enough
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| 14:35 | <JustGav> I've installed a media player under chroot...
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| 14:35 | And I can launch it with ltsp-localapps mplayer
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| 14:35 | <johnny> no need
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| 14:35 | might as well just run it directly on the client
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| 14:35 | <JustGav> Yeah, that's what I'm after....
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| 14:35 | <johnny> screen script does that
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| 14:36 | <JustGav> I know it is a bit of a nasty way to use ltsp, but it is a little slicker than my gpxe-iscsi config
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| 14:37 | <alkisg> What are your client specs? Maybe fat clients would be a better option, those don't require a desktop on the server...
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| 14:38 | <johnny> alkisg, with only a single app or 2 to run, why bother
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| 14:38 | i don't think he wants an entire desktop environment
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| 14:38 | <JustGav> alkish, I've installed it without a desktop on the server side, that bit is fine :)
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| 14:39 | I am using it as a fat client, used using ltsp's diskless setup :)
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| 14:39 | <alkisg> johnny, I just think it will be more straightforward, than trying to run an app as a user locally
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| 14:40 | rdesktop and the other screen scripts run as root
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| 14:40 | <johnny> sure, but that may or may not matter
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| 14:40 | and it does too much
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| 14:40 | there's no fat client setup for a simple window manager
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| 14:40 | <alkisg> Of course if he wants to run it as root and have some server path mounted with sshfs, that would work too...
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| 14:44 | <JustGav> I've just spotted the kiosk script in screen.d ...
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| 14:44 | Can I get away with just copying that and editting it?
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| 14:47 | <alkisg> Won't you need to access server data from a user account?
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| 14:47 | How are you planning on logging in / mounting sshfs etc?
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| 14:47 | <JustGav> No, because all the media is shared via cifs
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| 14:48 | and the media database is help on a ms-sql server...
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| 14:48 | <alkisg> And you installed the samba client utilities etc on the chroot?
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| 14:48 | <JustGav> Yeah
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| 14:48 | <alkisg> If you've taken care of that part, then sure, either the kiosk script or even the rdesktop script could be used as a start...
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| 14:49 | <JustGav> I know it is a slightly clunky way to do it... and it is cleaner just to roll my own setup which I've done perviously, but it had a quirk with having to load each client manually
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| 14:49 | <alkisg> (the kiosk creates a user, while the rdesktop runs as root)
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| 14:50 | If you don't mind running stuff on the TC as root, then the rdesktop script would be easier
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| 14:50 | (security-wise)
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| 14:52 | <JustGav> Okay, script created, now for dumb-ass question, where do put the script or what file to need to edit to tell the local client to launch it?
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| 14:53 | <alkisg> You put it with the other scripts on /opt/ltsp..., then run ltsp-update-image, and finally edit lts.conf to tell the client to use it
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| 14:54 | e.g.
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| 14:54 | [Default]
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| 14:54 | SCREEN_07=myscript
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| 14:54 | <JustGav> Got it :)
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| 14:54 | So SCREEN_00=default?
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| 14:54 | <alkisg> No, there's no 00
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| 14:54 | vt1, vt2 etc
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| 14:54 | Starts from 1
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| 14:55 | But don't use 1, it's used for local logins
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| 14:55 | Use 07 instead
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| 14:55 | <JustGav> Ah okay, I'll try that and report back, cheers again :)
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| 15:39 | <fluvvell> Aaarg, I was in the middle of ltsp-update-image and the power went off, now theres an empty images directory and running it again returns nothing and a new prompt. Do I have to do a full reinstall ?
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| 15:40 | it said something about "chroot: cannot run command `/usr/share/ltsp/update-kernels': No such file or directory "
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| 15:43 | <alkisg> ls -lha /opt/ltsp/i386/usr/share/ltsp/update-kernels
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| 15:44 | If you don't have that file, then your chroot is corrupted..
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| 16:10 | <fluvvell> how do you un-corrupt it?
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| 16:11 | <alkisg> Depends on how corrupted it is. If all the disk is corrupted, then you even need to reinstall the server
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| 16:11 | If it's just the chroot, just delete it and rerun ltsp-build-client
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| 16:22 | <vagrantc> should be easy enough to just delete /opt/ltsp/* and re-run ... if you're whole server is borked, well ... you'll probably notice
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| 16:37 | <MornignSon> Is there somewhere I could find something like a case study or white paper on successful LTSP projects? I'd like something that addresses cost savings
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| 16:37 | <fluvvell> disk seems to be ok, what about just apt-get install --reinstall ltsp-server ?
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| 16:38 | vagrantc, yeah thought of that but thats a whole download / reinstall of all packages. On the connection its on its about 4 hours :-(
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| 16:39 | at least /opt/ltsp/i386 seems fully intact, I can chroot into it and run updates. Just ltsp-update-image that doesn't return properly and do its thing.
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| 16:40 | <alkisg> MornignSon: here's one for thin clients in general by fraunhover, it's the most official i've seen so far: http://it.umsicht.fraunhofer.de/TCecology/docs/TCecology2008_en.pdf
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| 16:40 | (not ltsp, but it should be about the same)
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| 16:41 | fluvvell: try chrooting to /opt/ltsp/i386 and running apt-get install --reinstall ltsp-client-core
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| 16:42 | <MornignSon> thank you, i've found a lot from wyse about it but i was hoping for some details about successful ltsp installations. The link you gave me will help a lot though.
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| 16:43 | <fluvvell> alkisg, thanks ... trying now.
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| 16:47 | <fluvvell> alkisg, Yup, that did it! Its away laughing now- building the mksquashfs image. Very cool, thx.
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| 16:47 | its good to learn these things.
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| 16:47 | <alkisg> fluvvell: well, watch out for random crashes either on the server or the clients :)
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| 16:47 | Corrupted disks can be a pain :)
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| 16:49 | <fluvvell> Ah, its locked up 57% of the way through. :-(
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| 16:50 | %$&^!! Locked up the server.
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| 16:50 | no! wait, theres hope.
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| 16:59 | a rerun fixed it.
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| 17:09 | * Selveste1 is now away: I'm not here at the moment, but I will reply as soon as possible | |
| 17:14 | <fluvvell> thanks all for the help
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| 20:16 | <gurkhali69> hi, I installed the LTSP packages using mirror now can anyone tell me how can I boot the clients?
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