/srv/irclogs.ubuntu.com/2008/01/18/#edubuntu.txt

ari_stressmorning all :D00:41
aknhi, is anybody on who can give me current info on lts.conf?02:12
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ab0ooany NFS fat client gurus around?  I have a question about ssh host keys with a nfsroot and multiple clients.16:06
lagajust ask16:07
ab0oook, if I have a bunch of clients that all mount the same nfsroot, and they all run SSH, then they all get the same SSH host key, which is non-optimal.16:07
ab0oois there a way (i.e. a config option to sshd) to get each host to use it's own key?16:08
lagagood question :) i'll be facing the same issue soon..16:09
ab0ooI'm not sure #edubuntu is the right channel, but the project seems to have more nfsroot expertise than I can find anywhere else.16:09
lagaab0oo: there's a different problem, too: how do you make the clients keep their host keys if they reboot?16:09
ab0oothen, unless you have a bunch of identical hardware, you'll also face the xorg.conf problem, too. :)16:09
ab0oowell, X server has a slick little secret:  it will read xorg.conf.<hostname> for x configuration, so you can have per-host xorg.conf16:10
lagaab0oo: no, that'll be OK. ubuntu has lots of autoconfiguration magic and each client will have his own writeable nfs share which is merged with the root share using unionfs :)16:10
lagaoh, nifty.16:10
ab0oowhich is GREAT, unless you use nvidia's proprietary driver, which won't load the nvidia kernel module unless it finds nvidia in the /etc/X11/xorg.conf file.16:11
lagaab0oo: that's an ubuntu-specific hack16:11
ab0ooAhh, I'm not smart enough to use unionfs, which I probably ought to figure out16:11
lagayou can "fix" that by editing a file in /etc/modprobe.d/ or something like that16:12
lagaab0oo: i'm not smart enough either.. give me a few more hours16:12
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lagaunionfs on nfs didn't work well here. and aufs (another unionfS) requires a kernel patch. it also won't compile with the hardy kernel. i have had lots of fun lately with that..16:13
ab0oowhat I think I really want is some kind of variable substitution in NFS or "mount", so I can have a single config section that mounts "nfsserver:/export/config-<hostname>" where hostname is dynamically filled in by each host16:14
lagawe're gonna use the MAC address instead of the hostname16:15
laga(i'm currently working on a as-configless-as-possible approach for diskless clients for mythbuntu, a  HTPC distribution)16:16
ab0ooI used mythbuntu for a while, then just bought a Buffalo LinkTheater instead.  quieter, cheaper, fits in with the rest of the A/V gear better.16:17
lagadepends on what you need i suppose :)16:17
ab0oowith autofs, there appears to be a way to do variable substitution to include HOSTNAME, OS, VERSION, etc.16:20
lagasounds nice16:20
* laga needs to find out how ltsp/edubuntu uses sshfs16:21
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LaserJockogra: is the seed structure going to change soonish? Will ship-addon go to ship?16:51
o00wdoes anyone program with gcc?16:51
LaserJockdepends on the question ;-)16:52
o00wwell I see gcc listed in /usr/bin but it does nothing16:53
o00wI can launch it from terminal but it expects me to specify the file that I wish to open with gcc16:54
LaserJockwell, gcc is the compiler16:54
LaserJockyou need to write a C program first and then compile it with gcc16:54
o00wso what would be the gui I would use to write c code?>16:54
LaserJockwell, any text editor would do16:55
o00whmmm I was hoping to have something error check on the fly16:55
LaserJockbut if your interested in GUI tools I think anjuta is popular16:55
ab0ooeclipse with the C extensions does something like that16:56
ab0ooalso has all the syntax highlighting, etc.16:56
LaserJockyeah, eclipse would be the other one you might try. It's a Java app but has lots of extensions for other languages16:56
o00wsorry to be such a noob on this but I have seen windows compilers that let u debug and execute the code from within the application u are writing it in16:57
o00wor maybe it isn't called a compiler16:57
o00wlike quincy16:58
ab0ooyou're not going to find Visual Studio for Linux.  it's just not how Real Programmers program16:58
o00wwell I wasn't looking to be a "Real Programmer" yet.  but is there something that like changes the text color when an int is called and things like that16:59
LaserJocko00w: there might be some tools like that in anjuta/eclipse16:59
LaserJockbut to be honest, I just use a regular text editor16:59
LaserJockI don't program much but learning all the little tools takes more time then reading a tutorial/reference and just doing it, for me anyway17:00
o00wyeah... I haven't even written "hello world" yet so I just thought it would be less frustrating if I could see errors on the fly17:00
o00wthank you for the input though17:01
LaserJockwell, anjuta/eclipse would at least give you syntax highlighting17:01
LaserJockand they might have some debugging stuff17:01
LaserJockyou can just try them and see, they're in the repos17:01
PetarisHi all17:53
highvoltagehey Petaris!18:04
PetarisHi highvoltage18:07
PetarisI am having issues when I set X (on the client) to use the amd driver (for the geode2 chipset)18:11
Petarisbasically all ttys come up blank and you can't kill X18:11
Petarisit does listen to ctrl+alt+del though18:11
Petarisany other driver dies too18:12
Petaris*unless I set screen_02=shell18:14
Petaristhen X doesn't launch at all and I can work on the client18:14
Petarisseems that this issue is referenced here: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-amd/+bug/14005118:28
ubotuLaunchpad bug 140051 in xserver-xorg-video-amd "amd driver fails to autoconfigure" [High,Triaged]18:29
Petarishighvoltage: How can I install a specific version of a package from apt?19:39
Petarisor list multiple versions?19:39
PetarisI want to install the new packages listed in that bug report to see if it fixes my issues19:40
Petarisbiab19:44
mgb_anyone there that could help with a vmplayer error i'm getting running client over ltsp?20:34
johnnydepends20:34
johnnyif it's really related to vmware, then no20:35
johnnyif it's related to ltsp then perhaps20:35
mgb_ok, i'll try to explain the setup20:36
mgb_up-to-date edubuntu with two thin clients connected20:36
mgb_both thin client can execute vmplayer with a range of vm images, however when one client has the windows 2k clone open, the other starts the vm (a unique clone of the w2k vm) and gets an error like XCreateImageFailed signal 1120:38
johnnywhat dos w2k have to do with ltsp?20:39
johnnyyou mean vmware inside ltsp , not using20:39
johnnyi used vmware/virtualbox to test thinclients :)20:39
johnnynot to run windows :)20:39
johnnytry with say virtualbox?20:40
mgb_the thin client is using ltsp in order to access vmplayer20:41
mgb_vmplayer then executes a w2k image - there are other images - w2k is just an example20:41
johnnyhmm...you're prolly gonna have to go deeper20:42
mgb_does virtualbox have much in the way of cloning like vmware20:42
johnnyto figure it out20:42
johnnyi doubt it matches vmware completely20:42
johnnyi just prefer to use open software20:43
johnnyand virtualbox is good enough20:43
johnnydo you have a similiar problem with any other apps that might try to do something similiar?20:43
johnnywhen it comes to spawning extra windows?20:43
mgb_i haven't tried any other apps. the error comes when the vm window resizes to desktop when starting up20:44
johnnyhmm.. perhaps try to do the same with virtualbox, see if the problem is with vmware itself20:45
mgb_there is a bug report here https://bugs.launchpad.net/ubuntu/+source/rdesktop/+bug/10433220:45
johnnyjust backup some of your images20:45
ubotuLaunchpad bug 104332 in rdesktop "rdesktop crashes when logging in to windows 2000 (or pressing cancel)" [High,Fix released]20:45
mgb_is the latest edubuntu a gutsy release?20:46
johnnyyes20:46
mgb_if so why is this bug invalid in gutsy?20:46
johnnyaha.. that bug looks like rdesktop itself had to be patched20:46
johnnyto work20:46
johnnyif so, that'd be similiar for vmware.. if they really were similiar20:47
mgb_cool. thanks for the help. do you think there are any performance issues with thin clients running multiple vm images over a gig network?20:48
johnnyuhmm.. i don't have any experience with that20:49
johnnyso i won't speculate20:49
mgb_in terms of the network not being able to cope with the remote display of an X session with multiple vms open20:49
johnnymine is still 10/10020:49
johnnysome other folks here prolly run such setups tho20:50
johnnyi only have 4 clients on mine atm20:50
mgb_that's for mentioning virtualbox, it seems easy to clone vm20:54
mgb_i need a system that allows the use of thin clients in order to access multiple vm images. the vms at the moment are automatically cloned, in a hackish way due to the vmware API not supporting proper cloning yet, in order to provide the users of the thin client with non-persistant vm images where changes only persist if rebooted - if the vm is shutdown the changes are lost. do you think this is achievable with virtualbox?20:57
johnnywho knows21:05
johnnythe point is to test if you get the same issue with21:05
johnnyif you don't, then the issue is with vmware, and you'd have to complain to them21:05
lnsit's probably not of much use to people right now, but I thought I'd share a wiki I started on wikidot.com - the information I'm gathering and putting on it regards UbuntuLTSP/Edubuntu specifically, and has a lot of useful URLs regarding bugtracking, forums/websites, etc... I plan on expanding the site a LOT as times passes, so hopefully it will grow to be pretty extensive. For those of you that want to see it now, check out http://lns.wikidot.com - let me kno21:06
lnsw if you find it useful!21:06
LaserJocklns: why not use the Ubuntu wiki?21:07
johnnylns, did you attempt firefox 3 yet?21:07
lnsLaserJock, because the LNS wiki is for tracking issues/subjects directly relating to our own clients21:09
LaserJockhmm, I see21:09
lnsjohnny, no... i don't want to try FF3 until it is released as stable..there are too many people using it right now21:09
lnsLaserJock, there is still a lot of useful information (especially the reference url section) so feel free to duplicate it (or i can, but it's really hard for me to find the right places on the ubuntu wiki)21:09
LaserJocklns: this all applies to 7.10?21:10
johnnylns, well it's not like you couldn't just add an icon21:10
johnnyand use it along side21:10
lnsLaserJock, most of it, yes21:10
lnsjohnny, i could, but there are many more issues i have to fix/deal with first before trying more beta software..i need to re-try the XRAMPERC solution because I think the list post I followed was wrong for my setup21:12
lnsthat's one of the biggest reasons I started my own wiki - to track specific issues and be able to gather all information regarding it in one place21:12
LaserJockhttps://help.ubuntu.com/community/EdubuntuFAQ is one place we house stuff21:13
LaserJockhttps://help.ubuntu.com/community/EdubuntuRecipes21:13
LaserJockI think those are the primary wiki pages for Edubuntu help21:14
lnsoo, nice.. thanks LaserJock21:15
lnsI'll put that in my reference urls, already finding stuff in there that relates to issues we're having ;)21:15
LaserJockcool21:15
LaserJockseems like we should have a release-specific wiki page for issues that only hit a particular release21:16
lnsLaserJock, yeah...i'm already finding it very hard to keep a solid hierarchy in my OWN wiki... heh21:16
LaserJockyeah, wiki's can quickly become very messy21:17
LaserJockhmm, I should see if I can get ltsp set up on my new laptop21:18
lnsI strongly considered implementing my own wiki pages in the ubuntu/edu wikis...but man....it's just so difficult, i need more control over my specific issues21:18
LaserJockwell, if you have clients or need to track your specific stuff it makes sense21:19
LaserJockbut where possible it'd be nice to share since we are always looking for more documentation21:20
lnsLaserJock, exactly21:20
lnsi wish there was some way to link actual page text cross-wiki style (not sure if that's the right wordage)21:21
lnsinstead of just a link21:21
LaserJockright21:21
LaserJockI think that may be possible, but it wouldn't be feasible for Ubuntu's because I think it requires messing around with the wikis21:22
lnsahh21:24
lnswell if it's ok i can always put a link to my specific wiki on the Edubuntu/UbuntuLTSP wiki for reference21:26
lnsdunno if that would just clutter things up more, but at least it'd be a link to more info21:26
LaserJockhmm, I probably be for copying content over21:27
LaserJockare you gonna license your wiki? I didn't check21:27
lnsLaserJock, license my wiki?21:37
LaserJockyes, copying content only works if the licenses are compatible :-)21:38
lnshmm, never thought about that ;)21:41
lnsi guess i could, i have no idea howto thou21:41
LaserJockyou can just add a license statement21:43
lnslike gpl? (sorry i'm a license newb)21:43
lnscan i copy the license statement from somewhere? ;)21:44
LaserJockhttps://help.ubuntu.com/community/License21:44
lnsnice21:44
lnsthx21:44
LaserJocknotice that at the bottom of the page (and every other page on help.ubuntu.com/community) there is a link "Legal" and a little badge that says CC By-SA21:45
LaserJockthe CC-By-SA is a common documentation license from Creative Commons21:45
LaserJockGFDL is also used a fair amount, it's from FSF like GPL21:46
lnsLaserJock, ok cool - here we go: http://lns.wikidot.com/license21:54
lnsi just dunno if i need to reference the ubuntu wiki license page to be able to have copied that info...21:54
LaserJockit looks nice21:55
lnscool..just added a ref..we should be good to go ;)21:56
LaserJockawesome21:56
lnsanyway my wiki really isn't much of anything yet.. i just want to help everyone else out like they've helped me out. i hope it will become much more of a good reference in the future as i have time to gather and place information in it.21:57
LaserJocksure21:59

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