IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 19 August 2011 (all times are UTC)
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| 00:30 | <Chris_> yo
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| 01:14 | <andygraybeals> heyas
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| 07:47 | <bakytn> hello! Is it possible to change the way how LDM text inputs look? I am talking about the username and password text boxes. I want to make them larger
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| 08:04 | <Hyperbyte> Hey bakytn :) How's it going?
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| 08:06 | <bakytn> Hyperbyte, fighting with openchrome and printers :D a lot of work ahead. But I am happy. LTSP rocks...thinking about the cluster. How to do it better etc.
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| 08:09 | <Hyperbyte> You're running LTSP Cluster?
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| 08:10 | <bakytn> Hyperbyte, gonna deploy it yes.
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| 08:10 | will work hard this weekend.
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| 08:10 | <Hyperbyte> :)
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| 08:10 | You're gonna go into production next week?
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| 08:11 | <bakytn> we are already started switching users to Thin Clients. THe only things are the Canon printers (want to destroy them..) and OpenChrome video driver (xv crashing)
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| 08:12 | <Hyperbyte> :)
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| 08:12 | Currently I'm battling a little with 389 Directory Server
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| 08:12 | It's pretty neat, but I'm too inexperienced with LDAP to get it to work right away. Still, I've gotten quite far I think.
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| 08:19 | <bakytn> oh I fought with 389...to be frank I failed last time. But I will return to it a bit later.
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| 08:19 | you'are talking about FreeIPA2 right?
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| 08:26 | <Hyperbyte> Hrmm.... FreeIPA seems like some combination of a whole bunch of services
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| 08:27 | Apparently 389 is included there
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| 08:27 | But no, I'm talking about this: http://directory.fedoraproject.org/
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| 08:27 | The standalone directory server.
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| 08:35 | <bakytn> !pastebot
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| 08:35 | <ltsp> bakytn: pastebot: try !pastebin.
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| 08:35 | <bakytn> !pastebin
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| 08:35 | <ltsp> bakytn: pastebin: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here..
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| 08:36 | <bakytn> yes FreeIPA is analog for Active Directory (not a clone, but analog) to use Group Policies in Linux world. And 389 is part of it.
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| 09:05 | <Hyperbyte> So do you have any experience with LDAP? Possibly, oh, I dunno, enough experience to help me out a little here? :-)
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| 09:05 | <bakytn> Hyperbyte, I have exp with samba4. I can try to help with it sure!
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| 09:06 | I mean with LDAP issue not only samba4 :)
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| 09:06 | <Hyperbyte> Heh... well, I created a user in 389, but the LDAP client isn't picking it up. Not really sure where to go next...
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| 09:08 | <bakytn> what do you mean isn't picking it up?
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| 09:09 | <Hyperbyte> Exactly what I say. It's not there.
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| 09:10 | Basically, I'm looking for some way, with ldapsearch possible?, to verify that the user is correctly in the directory
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| 09:10 | <bakytn> ok, how are you adding it?
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| 09:11 | <Hyperbyte> 389-console
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| 09:12 | <bakytn> it's a GUI afaik. Have you looked at logs?
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| 09:14 | <Hyperbyte> Yessir, on both accounts.
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| 09:15 | <bakytn> what's the distr? are you using Fedora?
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| 09:15 | <Hyperbyte> Yessir.
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| 09:25 | <bakytn> Hyperbyte, if there are no errors. Try to (just for the sake of test) run as root
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| 09:25 | may be it's permissions issue
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| 09:26 | <Hyperbyte> Hrm...
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| 09:26 | I always run everything as root. I love living on the edge.
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| 09:27 | It's an authentication problem... when I try to authenticate, I don't get anything. When I don't try to authenticate, I do get results.
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| 09:27 | <bakytn> if there are console version, try to add through console
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| 09:27 | or phpldadadmin
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| 09:27 | phpldapadmin
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| 09:28 | <Hyperbyte> Nah, it has nothing to do with that...
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| 09:28 | <bakytn> ok :)
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| 09:28 | <Hyperbyte> It's some auth problem... will have to read up on this more.
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| 09:29 | <bakytn> sorry man...I don't have xp with 389. I once fought with FreeIPA and had to drop it as I didn't have time to continue
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| 09:29 | <Hyperbyte> Well it's working now. Just not with authentication. I thought LDAP required a client to authenticate, but whatever.
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| 09:31 | <bakytn> cool!
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| 09:35 | guys, how to make local apps to see attached usb flash drives? Currently they don't have access to it
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| 09:40 | Hyperbyte, why not Samba4?
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| 09:40 | it's pretty stable and gonna be released soon!
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| 09:42 | <Hyperbyte> bakytn, I don't have any Windows machines. Well, one, but that one's not really tied in to the network or authentication.
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| 09:42 | <bakytn> Hyperbyte, "I don't have any Windows machines" LUCKY! :D
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| 09:45 | <Hyperbyte> All thanks to LTSP. :)
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| 09:46 | And since we're quite possibly moving to a new office at the end of year, I thank the lord and heavens above that we have thin clients. This makes it logistically so much more appealing.
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| 09:46 | <bakytn> true
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| 09:46 | guys, how can I normally unmount flash drive with normal user? It's complaining that I'm "not root". Having to hard unplug it.
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| 09:47 | <Hyperbyte> bakytn, you don't have to. Linux is different thatn Windows in this regard.
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| 09:48 | <bakytn> Hyperbyte, btw what kind of graphic card in your thin clients? I am having really annoying issue with my Chrome9 HC3
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| 09:48 | <Hyperbyte> Windows creates a cache, so if you open files from the flash drive, it doesn't constantly have to read/write to the drive. It'll save somewhere else first, write later.
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| 09:48 | Linux doesn't do this. As soon as the writing is finished on the flash drive, you can unplug it.
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| 09:48 | <bakytn> Hyperbyte, thank you!
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| 09:49 | <Hyperbyte> This is why you have to do safe removal on Windows, else you run the chance that the cache isn't written to the stick yet, or worse, that it's writing at the moment you remove it. :)
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| 09:49 | <bakytn> Hyperybyte, that's very important information!
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| 09:49 | Hyperbyte, now I can tell users not to worry about and eventually less headaches to me
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| 09:50 | <Hyperbyte> Just tell them to close all files and folders from the stick, wait five seconds and then unplug.
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| 09:51 | <bakytn> Hyperbyte, ok!
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| 09:57 | <Hyperbyte> As for graphic chipset, start by describing your problems.
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| 10:03 | <alkisg> bakytn: which distro/version? I think there were some major improvements in openchrome stability the last year
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| 10:04 | Also, to unmount flash drives mounted with ltspfs, you just wait 2 secs and then pull them off :)
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| 10:07 | <Hyperbyte> Good morning oracle. :P
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| 10:08 | Afternoon even already!
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| 10:09 | <alkisg> Hehe good afternoon Neo, how's the matrix today?
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| 10:10 | <bakytn> alkisg, hello sir! the latest...Ubuntuj 11.04 OpenChrome is 916svnrevisoin (current is 933). my last try would be installing from source
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| 10:11 | when I said current is 933 i meant that the current trunk SVN revision is 933. But I have 916svn installed (that's what is in repos)
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| 10:11 | <alkisg> bakytn: and it crashes when you use xv? Does removing KMS support help? (nomodeset in pxelinux.cfg/default)
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| 10:12 | Btw oneiric has 1:0.2.904+svn920-1
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| 10:12 | <bakytn> alkisg, it's funny, it works! but when it's playing any video I shouldn't touch anything on the screen. For example if I try to move the window containing the movie while it's playing - it crashes
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| 10:12 | or when I try to go fullscreen
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| 10:12 | <alkisg> Gotcha. Did you try nomodeset?
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| 10:12 | <bakytn> alkisg! how could I forget about oneiric!
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| 10:13 | alkisg, how to use it? I just set nomodeset in that file?
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| 10:13 | <alkisg> sudo gedit /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default
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| 10:13 | Put nomodeset right next to quiet splash
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| 10:13 | <bakytn> alkisg, will get back in 3 minutes with the results
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| 10:14 | <alkisg> np, /me has a lot of hacking to do, will be here most of the day... :)
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| 10:34 | <bakytn> nomodeset didn't help :D
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| 10:35 | hereis my line in pxelinux.cfg/default file append ro initrd=initrd.img nomodeset nbdport=2001
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| 10:35 | hereis my line in pxelinux.cfg/default file "append ro initrd=initrd.img nomodeset nbdport=2001"
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| 10:51 | <alkisg> bakytn: http://changelogs.ubuntu.com/changelogs/pool/main/x/xserver-xorg-video-openchrome/xserver-xorg-video-openchrome_0.2.904+svn920-1/changelog
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| 10:51 | + 920: Fix Xvideo crash on X.Org server 1.10
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| 10:52 | So you should request a backport for natty, or just try to use the oneiric package
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| 10:52 | The most appropriate irc channel for this is #ubuntu-x
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| 10:52 | <bakytn> alkisg, yes. Thank you.
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| 12:30 | <bakytn> Hello! what does ltsp-update-kernels really do? I just dist-upgraded the chrooted environment including new kernel. Should I run it before ltsp-update-image?
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| 12:32 | <alkisg> Run ltsp-update-image --force, that calls ltsp-update-kernels too
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| 12:32 | 11.04, right?
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| 12:33 | <bobapple> i thought ltsp-update-image is not needed anymore for newer ltsp-server?
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| 12:33 | <alkisg> ltsp-update-image is needed for all distros that use nbd
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| 12:34 | <bobapple> ah.. ok
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| 12:34 | <alkisg> That's ubuntu by default. While debian uses nfs by default.
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| 12:34 | <bobapple> is nbd significant faster than nfs?
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| 12:35 | <alkisg> In a few tests I did, nbd was twice as fast as nfs, and nbd compressed (the old default up until karmic) twice as fast as plain nbd
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| 12:35 | So I'm using nbd compressed
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| 12:35 | <bakytn> alkisg, yes
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| 12:35 | <sep> a bit fater to boot ? after you'r booted i think it's the same thing
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| 12:36 | <bakytn> sep, not a bit :D but twice as fast!
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| 12:36 | <sep> bakytn, your still talking about bootup thime ?
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| 12:36 | since if the machine uses 25 or 50 seconds to boot, from wake on lan before anyone arrives is realy insignificant :)
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| 12:36 | <alkisg> That's not just boot, it's for every disk access
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| 12:36 | <bakytn> sep, yes :D
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| 12:37 | <alkisg> Thin clients have little disk access after boot, true, but nbd/nfs disk is used a lot more on localapps + fat clients
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| 12:37 | <bobapple> are there any papers how to configure nbd with lfs?
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| 12:37 | <sep> alkisg, significant for diskless workstation or local apps then
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| 12:38 | <alkisg> For every networked disk access, yeah :)
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| 12:38 | <bobapple> ltsp i mean
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| 12:38 | <alkisg> bobapple: which distro/version are you using?
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| 12:38 | <bobapple> fedora 14
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| 12:38 | <alkisg> Isn't that already using nbd? Hyperbyte?
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| 12:38 | <bobapple> no it's using nfs
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| 12:39 | <alkisg> Ah. And you're using localapps or fat clients?
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| 12:39 | <bobapple> i am using some localapps
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| 12:39 | but the most runs on the server
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| 12:40 | <alkisg> Well, then you'll only see a bit of difference, not much. E.g. if you run openoffice as a localapp, yes, it will start e.g. in 5 times less time
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| 12:40 | E.g. from 15 seconds down to 5 seconds
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| 12:40 | <bakytn> OMG! Alkisg, it's now working... ;( I'm gonna cry! :D
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| 12:40 | fullscreen movie..
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| 12:40 | <alkisg> Haha
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| 12:40 | <bakytn> (sorry...I'm so happy.. ;((((
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| 12:40 | <alkisg> Oneiric package?
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| 12:41 | <bakytn> alkisg, first I installed oneiric package. but it didn't work. But I installed on ltsp server :D
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| 12:41 | alkisg, then I installed it in chroot env :D and dist upgraded
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| 12:41 | and now it's all smooth..
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| 12:41 | may be ti's a new kernel did it.
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| 12:41 | or I should have it installed in chroot env
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| 12:41 | <alkisg> Yup, that one ^
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| 12:41 | <bakytn> :D
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| 12:41 | LOL
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| 12:41 | ok :D
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| 12:43 | * alkisg shouldn't do math without drinking coffee first... (03:40:17 μμ) alkisg: E.g. from 15 seconds down to 5 seconds ==> that's 3 times faster, while the actual performance boost would be about 5 times faster, i.e. 3 secs | |
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| 12:45 | <bakytn> guys, while you are here...is it possible to have TWO inputs at the same time. Login AND password. And make them larger...?
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| 12:45 | <alkisg> Sure, anything is possible, I'd also love to have ldm like that. But some of the upstream guys didn't like the idea of displaying both of them at once (and others did)
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| 12:46 | But you need to dig into ldm to do that, and the code's been changed a lot for 11.10, so I don't know if it justifies doing it for 11.04.
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| 12:47 | So, if you really want to do that, I'd use the ltsp backports from 11.10, modify ldm there, and then submit my patches to the ltsp developers list for consideration
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| 12:47 | <bakytn> alkisg, code changed a lot for 11.10? where can I read about it? and...yes. I will try to find a time to dig deeper into it. It's annoying
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| 12:47 | alkisg, gotcha
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| 12:47 | <alkisg> !ltsp-source | echo bakytn
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| 12:47 | <ltsp> bakytn ltsp-source: at http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/files.
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| 12:48 | <alkisg> Ah, ldm source, not ltsp source: http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ldm-trunk/changes
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| 12:48 | <bakytn> alkisg, excellent sir!
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| 12:48 | thank you!
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| 12:48 | <alkisg> You're welcome, good digging :)
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| 12:48 | <bakytn> yeah, when something is really intereseting...you go deeper and deeper :D until you become developer :D (high level)
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| 12:55 | <veloutin> developers! developers! developers!
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| 12:59 | <bobapple> does everything work if you use for your chroot an other arch as the servers one? especially localapps
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| 13:00 | <alkisg> It should, if it doesn't then it's a bug that needs to be reported
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| 13:02 | <bobapple> alkisg: you are something like a ltsp guru arent't you? :D
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| 13:02 | <alkisg> Nope, just a teacher that hangs around here toooooo much for his own good :(
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| 13:09 | <highvoltage> your cover is blown alkisg :)
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| 13:09 | <alkisg> Hehe, Hyperbyte even gave me a new name...
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| 13:10 | <oracle> Neo where are you?
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| 13:10 | oracle is now known as alkisg | |
| 13:10 | <alkisg> :P
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| 13:10 | <highvoltage> hehe
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| 13:11 | <alkisg> How are things at rev linux without stgraber? Too much load? Or you manage?
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| 13:11 | <Hyperbyte> All hail to the mighty oracle! Thou who speaketh the LTSP wisdom and who bestoweth many advices onto us daily.
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| 13:18 | <mgariepy> bobapple, i run the server in amd64 and my chroot is i386, so it works great :)
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| 13:18 | <bobapple> good to know mgariepy :)
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| 13:19 | <Hyperbyte> Me too. Works fine with localapps.
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| 13:20 | Pretty cool, if you think about it. Running 32-bit apps, inside a 64-bit windowmanager, sending it's display to a 32-bit X.
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| 13:25 | <bobapple> thats what i thought :D
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| 13:34 | so what about ntfs external hdd, thinclient detects it, but does not mount
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| 13:36 | <alkisg> Can you mount it manually if you sit on a local root shell on the client?
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| 13:39 | <bobapple> i'm not sure, the user is gone, but fdisk shows the hdd
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| 13:39 | i think a mount would have worked
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| 13:40 | <Hyperbyte> alkisg, does ltspfs work with NTFS?
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| 13:41 | <alkisg> It should, the file system doesn't matter much as long as linux can use it
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| 13:42 | But, there's some udev magic that looks for specific file systems, so e.g. udf had to be added there manually at a point
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| 13:42 | So it _might_ be an ltspfs bug
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| 13:42 | (or just a fedora missing package, don't know)
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| 13:42 | <Hyperbyte> Oh, bobapple, you're using Fedora?
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| 13:43 | <bobapple> yep Hyperbyte
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| 13:43 | <Hyperbyte> Do a 'rpm -q ntfs-3g' in the chroot, what does it output?
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| 13:44 | <bobapple> on the chroot?
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| 13:44 | <Hyperbyte> I forgot, yeah... you were using Fedora.
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| 13:44 | The client chroot.
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| 13:44 | <bobapple> ok.. it's not installed
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| 13:44 | <Hyperbyte> yum install ntfs-3g
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| 13:44 | This has to be in the chrooted environment, right. Not on the server.
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| 13:45 | <bobapple> ok, i'll search a ntfs stick. to test...
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| 13:45 | <Hyperbyte> Although it won't hurt to do it on the server as well, you need it in the client chroot.
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| 13:45 | <bobapple> on the server it's already installed, maybe i will add this package to the kickstart file
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| 13:46 | <Hyperbyte> The kickstart file?
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| 13:47 | <bobapple> /etc/ltsp/kickstart/Fedora/
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| 13:47 | <Hyperbyte> I have no idea what this does, but whatever floats your boat.
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| 13:48 | <bobapple> there are configs for the packages which are installed on ltsp-build-client, and which repo is used
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| 13:48 | kickstart usually is used under fedora to automate installations
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| 13:49 | eg. it works great if you have many servers to instlall
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| 13:49 | <Hyperbyte> You know you can just install afterwards, right? :)
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| 13:49 | <bobapple> the ntfs-3g package helped, it works now, thanks :)
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| 13:49 | sure, but if i add it there, i don't have to care anymore about that :D
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| 13:50 | for the future i think
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| 13:52 | <Hyperbyte> I wouldn't rebuild my client chroot anyways. :P
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| 13:52 | Some custom scripts and modifications in there, I don't wanna do again.
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| 13:52 | <bobapple> me neither, but you never know :)
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| 14:28 | <bobapple> ok guys, have a nice weekend
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| 14:54 | <dantix> hi all, I'm trying to get working freenx-server on my ltsp server and have an issue (I think) related to X, so investigating a bit execute: xhost + and receive No protocol specified.. unable to open display. The same with my user and sudoed. This looks bad, really is?
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| 15:46 | <rmainard> Hello all, I am running two ubuntu 10.04 ltsp servers running 25 diskless workstation thin clients (intel atom 1.6Ghz 1 gig ram). I am using the fat client image to cut down on server load and to hopefully increase online multimedia performance. The problem is that the computers keep locking up at random without so much as a error log entry. I also would like to note that the thin clients are getting very hot, so hot that it hurts t
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| 15:47 | Is this just a heat issue or is there something I could look at to try to aleviate the lock up problem?
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| 15:52 | <Hyperbyte> rmainard, you can check 'top' in a local xterm to see if something is using abnormally much CPU
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| 15:52 | !localxterm
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| 15:52 | <ltsp> Hyperbyte: localxterm: while sitting on a thin client, open a gnome terminal. In that, run: ltsp-localapps xterm. An xterm will open. That xterm runs locally, so any commands you enter there are executed directly on the client..
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| 15:52 | <Hyperbyte> Thin clients shouldn't get hot at all.
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| 15:54 | <rmainard> I'll try that thanks.
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| 15:55 | <Hyperbyte> No problem. If you need anymore help/advice don't hesitate to ask. :)
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| 15:57 | <rmainard> Thanks,
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| 15:58 | I just ran top and the highest percentage of cpu use was from firefox and it was only 3%.
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| 15:59 | That doesn't seem like it is too much, am I thinking correctly?
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| 16:03 | <Hyperbyte> That isn't much no. This is on a thin client that's getting hot?
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| 16:03 | <rmainard> The rooms are fairly warm so we are looking into having the Air Conditioning re-worked to cool the room better. Hyperbyte- do you have experience with Diskless Workstations TSP-1620 thin client? If so, in your experience do they run cool? Thank you for your help.
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| 16:04 | <Hyperbyte> I have 1520 and 1720 here... no 1620 I'm afraid.
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| 16:04 | First things first though. You did run the 'top' command on a thin client that is getting insanely hot?
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| 16:05 | <rmainard> yes
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| 16:05 | <Hyperbyte> And you left it running for a minute or so, to see if anything is using CPU?
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| 16:05 | <rmainard> yes
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| 16:05 | <Hyperbyte> Also - type 'uptime'
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| 16:05 | (on the thin client, local xterm!)
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| 16:05 | Are 'load average' numbers above 1.00 or below?
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| 16:05 | <rmainard> no, what does uptime do? does it report the time the system has been running?
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| 16:06 | <Hyperbyte> Yes, and the average load it has endured in the past few minutes.
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| 16:06 | <rmainard> they are below 1.00 around .29
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| 16:06 | <Hyperbyte> So this means you thin client isn't being used, and it's still getting hot.
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| 16:06 | <rmainard> yes
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| 16:06 | <Hyperbyte> .29 is normal...
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| 16:06 | Next step... reboot thin client, press Delete button I think to enter BIOS
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| 16:06 | Leave it sitting there for a while, see if it's still getting hot.
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| 16:07 | <rmainard> ok, I'll try that. Thanks!
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| 16:07 | <Hyperbyte> Also - remember thin clients aren't actively cooled. This means they take a while to cool down.
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| 16:07 | <rmainard> right, I was just trying to figure out how to install a fan in them.
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| 16:08 | <Hyperbyte> Fix the problem, don't work around it. :)
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| 16:08 | LTSP Term 1720 should be gently warmed at best, during normal usage, not hot.
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| 16:08 | <rmainard> These are getting painfully warm to the touch.
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| 16:08 | <Hyperbyte> Well, that's not good.
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| 16:09 | Find a cold one and leave it sitting in BIOS for an hour or so... see if it gets warm.
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| 16:09 | <rmainard> I'll try that, I guess I'll have my answer then. Thanks!
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| 16:09 | <Hyperbyte> If it does, you need to contact Diskless Workstations. They're very helpful people though.
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| 16:09 | What distro/version are you running?
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| 16:11 | <rmainard> Ubuntu 10.04 32 bit
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| 16:13 | <Hyperbyte> :)
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| 16:14 | You are 100% sure you were running top on the client, right? Not on the server? :)
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| 16:14 | Wait, you were using fat clients, then it doesn't matter. You'll always be on the client.
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| 16:15 | <rmainard> That's why I am so sure.
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| 16:15 | <Hyperbyte> =)
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| 16:15 | <rmainard> Thanks Hyperbyte!
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| 16:16 | <Hyperbyte> You're welcome... stick around, let me know how it turns out.
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| 16:16 | <rmainard> sure, no problem.
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| 16:30 | <alkisg> rmainard: https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/694066
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| 16:30 | That's for your heat problem, you probably need to enable the on demand governon
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| 16:30 | r
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| 16:30 | And this is for the hanging problems, *IF* they persist after lowering the temperature: https://bugs.launchpad.net/ltsp/+bug/589034
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| 16:32 | <rmainard> Ok, thanks Alkisg I'll try those.
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| 16:32 | <alkisg> (both are known problems)
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| 16:33 | To enable the ondemand governor, you'll need to run update-rc.d in the chroot, with the appropriate parameters
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| 16:35 | <rmainard> I just looked at the first one and I am affraid it is a little over my head, I see the command you just posted but what parameters am I supposed to enter?
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| 16:35 | sorry, still learning
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| 16:35 | <alkisg> rmainard: ok, give me a few minutes to find the exact command you need
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| 16:36 | <rmainard> Thanks!
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| 16:36 | <TheMatrix30001> hey everyone
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| 16:36 | anyone here running ltsp-cluster
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| 16:36 | <rmainard> I have in the past
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| 16:37 | <TheMatrix30001> i need 3 systems correct?
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| 16:37 | and does it provide some form of redundancy
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| 16:39 | <rmainard> you "need" one root server for the boot image, dhcp, ltsp-cluster-control, and load balancer. All of those can be on one server. After that you can setup as many app servers as you want. the app servers are redundant but the root server is not.
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| 16:39 | <TheMatrix30001> can I have the dhcp on a router?
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| 16:39 | <rmainard> the root server can be setup as three different systems as well but it doesn't really help you to do that.
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| 16:40 | <TheMatrix30001> I currently have LTSP on my network but the dhcp is being done from our network router
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| 16:40 | ah, ok
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| 16:40 | now, what is the best design for failover, i can have 3 physical server
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| 16:40 | <alkisg> rmainard: sudo chroot /opt/ltsp/i386 update-rc.d -f ondemand remove
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| 16:40 | sudo chroot /opt/ltsp/i386 update-rc.d ondemand defaults 99
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| 16:40 | sudo ltsp-update-image
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| 16:40 | <TheMatrix30001> loadbalance and failover*
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| 16:41 | <rmainard> I never setup a failover so I am no too sure.
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| 16:41 | <alkisg> rmainard: if you see that those solve your problem, add them to the bug report for others to see
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| 16:41 | <rmainard> thanks alkis I will.
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| 16:41 | <TheMatrix30001> rmainard, ill pm you
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| 16:41 | <rmainard> ok
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| 16:43 | <Hyperbyte> alkisg, I really like 389 directory server. Got it working now across network server and terminal server. :)
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| 16:43 | <alkisg> The freeipa thing sounds cool, but I think it's a bit of overkill for the schools here
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| 16:43 | Usually we have 12 pcs + 1 server per school, not really worth it for ldap
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| 16:44 | So I'll wait for sbalneav to finish his libpam_sshauth work :)
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| 16:44 | <Hyperbyte> Nah, I wouldn't use LDAP if I didn't want to sync my users across 3 servers. :)
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| 16:44 | <Hyperbyte> But still, you know, it looks like a very robust solution for managing thousands of users. I like it.
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| 16:45 | It was more of an experiment than serious need. ;-)
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| 16:45 | Although I do like the replication features of it much better than the replication features of NIS.
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| 16:46 | <alkisg> Out of the box, if your "master" server shuts down, can you login to the other servers? I.e. does it have preconfigured caching?
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| 16:47 | <Hyperbyte> It has multi master replication. :)
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| 16:47 | So there can be several master servers, who can work individually and keep other servers updated as well.
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| 16:47 | <alkisg> So if your ltsp server is down, I can change my password while logged on on your nfs server, and then the ltsp server will be automatically synced once it's up again? Cool!
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| 16:47 | <Hyperbyte> Yeah
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| 16:47 | And the other way around too.
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| 16:48 | If you change your password on the LTSP server it will sync too.
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| 16:48 | <alkisg> How many hours did you put for the inital setup?
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| 16:48 | <alkisg> With searching, reading and all of it?
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| 16:48 | <Hyperbyte> I could do it in half an hour now probably, intially... I dunno... four, maybe.
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| 16:48 | But lots of that is reading.
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| 16:49 | I learned -a lot- in the past few days. :)
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| 16:53 | Seems like tools like 'passwd' integrate with LDAP nicely as well
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| 16:54 | <alkisg> If the user can change his password normally from "gnome-about-me", it's fine
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| 16:54 | <Hyperbyte> Never used this
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| 16:55 | <alkisg> If not... /me won't ever use ldap :)
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| 16:55 | In ubuntu, click on your name on the right top of the screen
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| 16:55 | <muppis> If it uses PAM, it'll work.
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| 16:55 | <alkisg> Then the first menu (your name/picture), then "change password"
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| 16:56 | <Hyperbyte> Can't try at the moment...
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| 16:57 | Can't even log in to my terminal server. :-D
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| 16:57 | <muppis> :)
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| 16:57 | <Hyperbyte> It *might* have something to do with me moving all home directories from NFS to my new RAID partition. :)
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| 16:57 | (duh)
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| 16:57 | <alkisg> Ooooh RAID, cool :)
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| 16:57 | Don't forget to benchmark before & after
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| 16:58 | <Hyperbyte> Meh, benchmarks are for wimps.
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| 17:01 | <Hyperbyte> I don't think it'll make -that- big a difference really for anyone, except the persons working with really big files.
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| 17:01 | And that's our designer and me... so...
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| 17:03 | <alkisg> I used to underestimate disk speed too, until I saw openoffice opening from 30 secs before, down to 3 secs after
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| 17:03 | <Hyperbyte> Too bad the OS itself isn't on the RAID partition. =)
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| 17:05 | It's just for the files. The OS is on a fast harddisk too though, so...
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| 17:07 | <rmainard> Hey alkisg, I just finished running both commands and the thin clients no longer boot, have you seen this?
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| 17:07 | I also updated the image
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| 17:07 | <alkisg> rmainard: it should be unrelated to "update-rc.d", but related to update-image
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| 17:08 | I.e. you probably had apt-get updated your chroot before, installed programs or something, and just now ran ltsp-update-image?
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| 17:08 | Anyway, what's the error on the client?
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| 17:09 | <rmainard> I had installed software, and updated the image before this. The client shows the ubuntu splash screen then goes to a blank screen with nothing on it.
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| 17:09 | Where should I start?
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| 17:09 | should I just start with a new image?
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| 17:10 | <alkisg> No no
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| 17:10 | sudo gedit /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default
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| 17:10 | Remove quiet splash from there, and reboot client
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| 17:11 | <rmainard> can I comment it out with a # ?
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| 17:11 | <alkisg> It's two words in a middle of a command
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| 17:12 | So you can't comment out the middle of the command
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| 17:12 | <rmainard> Ok thanks
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| 17:12 | <alkisg> If you want, you can move them in a new comment below that line
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| 17:12 | <rmainard> that's what I'll do, thanks
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| 17:18 | It is hanging on starting LTSP client.......
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| 17:21 | I know that is not helpful so what should I look for?
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| 17:21 | <alkisg> Try reverting the ondemand governor, to verify that this isn't to blame:
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| 17:21 | sudo chroot /opt/ltsp/i386 update-rc.d -f ondemand remove
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| 17:21 | sudo ltsp-update-image
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| 17:21 | <rmainard> Ok,
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| 17:22 | <alkisg> But that would be very weird, as it's there on the default ubuntu installation
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| 17:22 | It's an ltsp bug that it's removed in ltsp chroots
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| 17:23 | <rmainard> ok, updating image I'll report back when I know something. Once again thanks
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| 17:28 | <rmainard> It's still hanging at starting LTSP client...
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| 17:29 | <alkisg> So the hanging is unrelated to the changes you made
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| 17:29 | Think of what else you did before you last ran ltsp-update-image
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| 17:30 | Did you install anything in the chroot? Update something? Changed some setting? etc
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| 17:30 | <rmainard> the last thing history shows in my terminal is lts.conf editing
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| 17:30 | I was trying to setup automatic login which it was doing
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| 17:31 | I also set it up to shutdown the terminal with cron at a certain time.
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| 17:32 | <alkisg> Before running ltsp-update-image now, when was the last time you ran it? E.g. yesterday?
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| 17:32 | <rmainard> the last chroot comand is sudo chmod 755 /opt/ltsp/i386/etc/ltsp/crontab.sh followed by sudo ltsp-update-image. it has been about 3 weeks.
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| 17:33 | <alkisg> grep Start-Date /opt/ltsp/i386/var/log/apt/history.log | tail
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| 17:33 | So no recent dates there?
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| 17:34 | <Hyperbyte> rmainard, lts.conf editing... did you do this at the same time you ran the commands alkisg suggested?
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| 17:35 | <rmainard> no I did that prior to those commands about two to three weeks ago.
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| 17:35 | no recent dates it says no such file or directory
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| 17:36 | <alkisg> If your chroot is amd64, change the path in the above command
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| 17:36 | <rmainard> it's not it's i386
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| 17:36 | <alkisg> Is your chroot amd64?
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| 17:37 | That's weird too.
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| 17:37 | Anyway what I imagine happened is this: you were doing stuff 3 weeks ago. Then you ran ltsp-update-image and all was working. Then you changed something in your chroot and broke it, but you didn't ran ltsp-update-image at that time.
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| 17:37 | <rmainard> OOPS, I fat fignered the command
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| 17:37 | for grep
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| 17:38 | <alkisg> So, running ltsp-update-image now made the 3-weeks-old problem show up
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| 17:38 | I can't imagine anything else to be the problem
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| 17:38 | <rmainard> but the history command show what I did and that was run a chroot command and then update the image after that there is no chroot command listed.
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| 17:39 | <alkisg> E.g. if you have 2 terminal tabs open, only half of the history is saved
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| 17:39 | <Hyperbyte> rmainard:
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| 17:40 | <alkisg> But anyway, I can't imagine anything else that could make the client stop at "starting ltsp"
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| 17:40 | <Hyperbyte> find /opt/ltsp/i386/ -mtime 21
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| 17:40 | Should show all files modified in the last 21 days if I'm not mistaken.
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| 17:40 | <alkisg> The chroot might have been broken from 21 days ago... so I'm not sure that would help pinpointing the problem
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| 17:41 | update-rc.d only creates a few symlinks, and we undid that
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| 17:41 | <Hyperbyte> alkisg, like you said, there could be something that didn't get logged properly in the history.
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| 17:42 | <alkisg> Indeed, but 3 weeks ago, not today...
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| 17:42 | <Hyperbyte> It's a pretty long shot though, I agree...
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| 17:42 | <alkisg> So it would show up along with all the other fiddling
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| 17:42 | <rmainard> Ok, look, I am not trying to place blame. I just want to fix it so is the best course of action to just re-download the image.
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| 17:42 | <Hyperbyte> Well, if 3 weeks ago is the last time it worked... :)
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| 17:43 | rmainard, no, don't worry... Alkis and I are just thinking out loud. :)
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| 17:43 | <rmainard> ok
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| 17:43 | <alkisg> rmainard: if you have a patched ltsp chroot, then I'd start by expressing the changes I made
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| 17:43 | Because some of them might prevent the client from starting
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| 17:43 | Or, if it's an option for you, I'd backup + recreate the chroot from scratch
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| 17:44 | <rmainard> I think that's the best solution here because I have to get this back up and running. ASAP
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| 17:45 | <Hyperbyte> Are you sure the /etc/ltsp/crontab.sh isn't causing this problem?
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| 17:46 | If it's running some command that doesn't exit or fork properly, it will cause LTSP to hang at starting LTSP client.
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| 17:46 | <rmainard> yes I am sure because I updated the image immediately affter and they were working.
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| 17:46 | <Hyperbyte> Humor me for a second and run this command: find /opt/ltsp/i386/ -mtime 21
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| 17:46 | Put the output on pastebin. :)
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| 17:46 | <alkisg> rmainard: ls /opt/ltsp/i386/rc*/*demand*
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| 17:46 | You don't have such a file, right?
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| 17:47 | Sorry missing /etc/ there
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| 17:47 | ls /opt/ltsp/i386/etc/rc*/*demand*
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| 17:47 | <rmainard> no such file
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| 17:48 | <alkisg> So, the command that broke your installation, was "ltsp-update-image"
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| 17:48 | So, your installation was already broken...
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| 17:48 | I don't know why :(
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| 17:48 | Run that command that Hyperbyte said
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| 17:49 | <rmainard> I have an i386 folder with the same settings on another server can I just ftp copy the directory over and re-run ltsp-update-image and, if all is well, be back to where I started?
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| 17:49 | <alkisg> rsync copy, not ftp copy
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| 17:49 | <Hyperbyte> If by ftp you mean scp, you probably could. But could you humor me for a second and run that command?
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| 17:50 | It'll take you all of 1 minute and it'll satisfy my curiousity to no end.
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| 17:50 | <rmainard> I ran the command and there is a lot of output, how do I transfer it to paste bin?
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| 17:51 | <Hyperbyte> find /opt/ltsp/i386/ -mtime 21 > results.txt
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| 17:51 | <alkisg> find /opt/ltsp/i386/ -mtime 21 > /tmp/find.output
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| 17:51 | <Hyperbyte> Then upload results.txt
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| 17:51 | <alkisg> Hehe
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| 17:51 | <rmainard> thanks, once sec.
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| 17:53 | <alkisg> Also please do the same just for the last 2 days
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| 17:53 | find /opt/ltsp/i386/ -mtime 2 > /tmp/find2.output
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| 17:53 | It should only show what update-rc.d touched
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| 17:54 | <Hyperbyte> Put both outputs on
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| 17:54 | !pastebin
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| 17:54 | <ltsp> Hyperbyte: pastebin: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here..
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| 17:54 | <Hyperbyte> Or any webserver of your choice, of course.
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| 17:55 | <[GuS]> Hi guys, i have problems trying to use custom kernel file when building ltsp client (latest) with Gentoo: http://pastebin.com/7SSW9cHN. The conf. is: KERNEL_CONFIG_URI=file:///etc/kernels/kernel-config-x86-2.6.39-gentoo-r3 which is a file that exist in fact.
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| 17:59 | <rmainard> Ok, I ran the first command and pasted it to pastebin under rmainardLTSPissue, When I change it to 2 days there is no output just a blank file.
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| 17:59 | <Hyperbyte> Can you give the link?
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| 18:00 | <alkisg> That's because truly no files were changed and it was just ltsp-update-image that broke your installation :D
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| 18:00 | <rmainard> http://pastebin.com/aV2nCqVu
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| 18:01 | Ok, so should I just start over.
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| 18:01 | <slidesinger> Is it possible to support USB mass storage (thumbdrive) by login ID?
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| 18:01 | <alkisg> rmainard: I don't see crontab.sh in pastebin
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| 18:07 | <rmainard> I don't see it either. how about I paste what is in that file.
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| 18:08 | <Hyperbyte> If by 'paste' you mean 'pastebin', yes please. :)
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| 18:08 | <rmainard> yes
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| 18:08 | <alkisg> rmainard: I mean, that you updated firefox, java etc *after* your crontab modifications
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| 18:09 | So, it's possible that this `apt-get update`, which you don't see in your logs, is what ruined your chroot
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| 18:09 | <Hyperbyte> Either that, or he modified the crontab.sh earlier than 3 weeks and used mv to put it in his chroot. :)
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| 18:10 | I don't see any stuff in there that relates to the boot process nor to LTSP though.
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| 18:10 | <rmainard> I think I edited it from outside of chroot, could that be the problem?
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| 18:10 | <Hyperbyte> No
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| 18:10 | <alkisg> rmainard: can you paste your current lts.conf?
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| 18:11 | <rmainard> sure give me one second.
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| 18:11 | <Hyperbyte> rmainard, you can edit /opt/ltsp/i386/ from the server all you want. You just need ltsp-chroot when you want to run certain scripts or commands in it from the server.
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| 18:11 | <rmainard> ok
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| 18:11 | I mean ok to the prior comment
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| 18:11 | <Hyperbyte> Like apt-get :)
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| 18:14 | * alkisg wishes good luck with the rest of the troubleshooting, bb | |
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| 18:14 | <rmainard> http://pastebin.com/fdU52r7M
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| 18:14 | for the lts.conf
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| 18:15 | <Hyperbyte> Okay
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| 18:15 | <slidesinger> Disregard my previous question, I found the answer. I was using the wrong search criteria, so I did not find it.
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| 18:15 | <Hyperbyte> slidesinger, done. :)
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| 18:16 | rmainard, can you rename lts.conf to lts.conf.disabled and see if the clients boot then?
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| 18:16 | <rmainard> how can I just copy the i386 image from the other server, what is the best way.
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| 18:16 | I'll try the renaming thing as well
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| 18:17 | <slidesinger> As a note, you will not find anything useful if you search for USB mass storage and ltsp. You have to use thumb drive and ltsp.
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| 18:17 | <rmainard> be back in a sec
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| 18:19 | <TheMatrix30001> k
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| 18:21 | <rmainard> renaming lts.conf got it booting again but can't log in
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| 18:21 | <Hyperbyte> a-ha!
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| 18:21 | Okay
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| 18:21 | Put lts.conf back
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| 18:21 | <rmainard> what does that mean?
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| 18:22 | <Hyperbyte> Comment the SCREEN_02 and SCREEN_07 lines
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| 18:22 | That it doesn't login is normal, the autologin is done via lts.conf
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| 18:22 | By removing that, you disable autologin. But that's a side effect, don't worry about it.
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| 18:22 | I think the mistake you've made
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| 18:23 | Is SCREEN_02=SHELL
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| 18:23 | Remember Linux case sensitive. It's 'shell'
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| 18:23 | <rmainard> lines commented, let me try it again.
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| 18:24 | <TheMatrix30001> rmainard: sent pm
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| 18:24 | <Hyperbyte> TheMatrix30001, are you spamming people again? :\
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| 18:24 | <TheMatrix30001> ha no
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| 18:24 | i was talking earlier to rmainard about ltsp-cluster
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| 18:24 | * TheMatrix30001 puts a bag over Hypers head | |
| 18:24 | <Hyperbyte> TheMatrix30001, I was kidding man. :P
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| 18:24 | <TheMatrix30001> lol
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| 18:25 | <Hyperbyte> Heheh
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| 18:25 | <Hyperbyte> rmainard, but the case sensitivity from 'shell' to 'SHELL' is what caused this I bet.
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| 18:26 | Also, the 'x' in LDM_DIRECTX is lowercase, why? It doesn't matter for the first part bit luckily, but it's good to learn to be very accurate when editing config files.
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| 18:27 | For performance it's also recommended to set LDM_DIRECTX to True by the way, but if you need really insanely tight security then I guess it makes sense to leave it at False.
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| 18:27 | <rmainard> True or true?
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| 18:28 | it isn't booting with the commented lines
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| 18:28 | <Hyperbyte> Both are supported, according to the manpage. :)
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| 18:28 | So this you can pick.
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| 18:28 | Okay
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| 18:28 | Comment RCFILE_02
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| 18:29 | Does it boot then?
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| 18:31 | <TheMatrix3000> ther we go
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| 18:31 | Who booted me?
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| 18:31 | <slidesinger> So, it looks like all I have to do is: users who will be allowed to mount thumb drives are added to udev and fuse in /etc/group?
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| 18:34 | <slidesinger> Sorry, that should have read plugdev.
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| 18:35 | <rmainard> Hey Hyperbyte, I just watched my other server that I ran the commands Alkis gave me and it is working fine. that is the same VM image as the one that is broken and it doens't have any issues.
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| 18:35 | I think something is just wonky with this server so I think i better just start over with it.
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| 18:36 | it still won't boot the clients
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| 18:36 | <Hyperbyte> rmainard, I think something wonky is with your lts.conf
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| 18:36 | Comment the CRONTAB_01 line as well
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| 18:37 | Also - when your clients are freezing... do they get stuck, or do they turn off?
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| 18:41 | <rmainard> Could I just coment all the config changes and have them boot then?
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| 18:41 | they freeze and don't come back
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| 18:41 | they don't turn off.
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| 18:42 | <Hyperbyte> rmainard, you could comment everything except the autologin part I guess?
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| 18:43 | <rmainard> at this point I don't care about autologin
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| 18:44 | <Hyperbyte> Do you have LDM_DIRECTX set to False on purpose?
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| 18:45 | <rmainard> uh... no, I kind of didn't think about that when I set it so... oops
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| 18:45 | I have changed that to test it.
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| 18:45 | <Hyperbyte> http://secondary.recreatie-zorg.nl/jan/lts.conf
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| 18:45 | Use that.
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| 18:46 | <rmainard> ok one sec
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| 18:46 | <Hyperbyte> And promise me to be really secure with editing the config file. In your config there were sound options halfway to the bottom, not under [default], there was also a lot of redundant things.
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| 18:46 | For example SOUND=True is a nonsense config option, because SOUND is True by default.
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| 18:49 | <highvolt1ge> well if/win 27
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| 18:49 | <rmainard> ok I am going to test it, please hold on.
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| 18:52 | <rmainard> still no joy, it looks like it is totaly busted :-(
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| 18:52 | <Hyperbyte> I still find it strange that it booted to a login prompt without an lts.conf at all
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| 18:53 | I give up.
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| 18:53 | What you want, on the broken server:
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| 18:54 | mv /opt/ltsp/i386 /opt/ltsp/i386.backup --- mkdir /opt/ltsp/i386 ---- rsync -a --progress root@goodserver:/opt/ltsp/i386 /opt/ltsp/i386
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| 18:54 | <rmainard> is that the command for moving the dir:
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| 18:54 | ?
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| 18:54 | thanks
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| 18:54 | <Hyperbyte> The ----- are seperators, those are enters. :P
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| 18:54 | It's three commands
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| 18:54 | <rmainard> ok
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| 18:55 | <Hyperbyte> The last command might be a bit wrong, it might create /opt/ltsp/i386/i386/, but you can just fix that afterwards by moving the dir.
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| 18:55 | <rmainard> ok, thanks
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| 18:56 | <Hyperbyte> Best of luck, I'm going home and have some dinner. Feel free to leave messages in the channel though, I'm sure someone else can help... else I'll read later. :)
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| 18:57 | <rmainard> later and thanks again!
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| 18:57 | <Hyperbyte> You are very welcome.
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| 18:57 | <rmainard> Thanks for the help anyway I'll just chalk it up to bad timming/luck
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| 23:17 | <TheMatrix3000> when using ltsp-cluster, load on the root-server is minimal if it isn't the app server right?
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