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


Channel log from 14 July 2012   (all times are UTC)

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17:03
<baptiste>
hi
17:03* vagrantc waves
17:03
<baptiste>
so, my installation failed with the ubuntu 12.04 packages, but it worked with the greek PPA there : https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
17:04
https://launchpad.net/~ts.sch.gr/+archive/ppa
17:26
wow, it's incredible (fast playback of .avi), but I realize it gave me a fat client
17:30
<vagrantc>
that's what ltsp-pnp is about, yes.
17:30
you can force it to be a thin client by setting LTSP_FATCLIENT=false in /var/lib/tftpboot/ltsp/i386/lts.conf
17:31
<baptiste>
do i need rebuilding image after editing this file, or not
17:32
<vagrantc>
no
17:34
<baptiste>
this is very fine, I would default with a thin client and have fat client for e.g. multimedia machines
17:34
<vagrantc>
should be doable.
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17:54
<alkisg>
vagrantc: I didn't stay much at home today, I don't think I'll have time to test the ssh stuff after all... sorry! :(
17:54
<vagrantc>
alkisg: hmmm.
17:55
maybe i could cobble together some sort of infrastructure...
17:56
<alkisg>
To test: params with spaces, with quotes, the xfreerdp -- xxx parameters... they should all work, but testing would be needed...
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21:37
<DJUnreal>
evening all
21:37
how are we?
21:40* DJUnreal is hoping someone in here can give him a hand...
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21:49
<DJUnreal>
hey bobby_C
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21:51
<DJUnreal>
Welcome Back bobby_C
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22:05* DJUnreal looks around
22:09* muppis hides.
22:11
<highvoltage>
yeah irc / laptops sound ok. /win 27
22:11
(oops)
22:13Parker955_Away is now known as Parker955
22:18
<DJUnreal>
hey Parker955
22:18
<Parker955>
hello sir
22:18* DJUnreal ponders... do any of you happen to be uber clever?
22:19* DJUnreal is experiencing STUPID ltsp issues lol
22:19
<alkisg>
1+1=10 :)
22:19
!ask
22:19
<ltsp>
alkisg: ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least a full hour after asking a question, as not everybody constantly monitors the channel.
22:20
<DJUnreal>
Basically... I've got an LTSP server running Debian that I set up... it works fine if I PXE boot my laptop, and works fine for VMs as far as I know, but I got given some Neoware CA-5 units the other day, which throw an error on boot
22:20* DJUnreal tries to catch the full error, hold on
22:22
<DJUnreal>
the first line is about the CPU - "Your vendor is SiS SiS SiS - unknown, using generic init"
22:22
then it throws "Your system may be unstable"
22:23
then finally just before rebooting itself, it throws "Initramfs: unpacking failed: junk in compressed archive"
22:24
it promptly reboots itself without giving me time to do anything...
22:34
<alkisg>
Sounds strange... unpacking the initramfs happens before the kernel is loaded, so what part throws the messages you mention? pxelinux?
22:34
<Hyperbyte>
alkisg, oh hi
22:34
I have a question.
22:34
<alkisg>
Or is it using e.g. .nbi?
22:34
Hi Hyperbyte
22:35
*before the kernel is executed, sorry
22:35
<Hyperbyte>
If I want to maintain one chroot, for fat -and- thin clients, is that possible with standard LTSP, or do I need ltsp-pnp?
22:35
<alkisg>
Hyperbyte: a single chroot for both fat and thin clients? Or two separate ones?
22:36
<DJUnreal>
alkisg: yeah, it's the first stage... the last message before that is "trying to load pxelinux.cfg/default ok"
22:36
<Hyperbyte>
Basically for the radio station I have some clients which can be fat, and some which are too weak to be fat. I want to be able to provide them with exactly the same OS/desktop (so I don't have to maintain two installs) and switch via an lts.conf setting
22:36
<alkisg>
!quietsplash | echo DJUnreal
22:36
<ltsp>
DJUnreal I do not know about 'quietsplash', but I do know about these similar topics: 'quiet-splash'
22:36
<Hyperbyte>
I believe from all the bits and pieces I've seen here that that's easily doable, but I'd like to know how exactly.
22:36
<alkisg>
!quiet-splash | echo DJUnreal
22:36
<ltsp>
DJUnreal quiet-splash: to disable the splash screen in Ubuntu, in order to see any boot error messages, run `sudo gedit /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default` and remove quiet splash .
22:36
<alkisg>
(about the same in debian too)
22:36
!fatclients | echo Hyperbyte:
22:36
<ltsp>
Hyperbyte: fatclients: You may find some info about the Ubuntu/LTSP implementation of fat clients at https://help.ubuntu.com/community/UbuntuLTSP/FatClients
22:37
<DJUnreal>
err...?
22:37
<alkisg>
Hyperbyte: the page became a little messy after dozens of people edited it, but if you follow it carefully, you should be able to do it
22:37
<DJUnreal>
i'll give that a try alkisg, thanks
22:37
<alkisg>
DJUnreal: pxelinux reads the linux command line for "quiet" and produces less error messages then
22:37
<Hyperbyte>
alkisg, that tells me how to remove my thin client chroot and make it fat
22:37
But I want -some- clients thin and -some- fat, depending on what I configure for them.
22:38
<alkisg>
Hyperbyte: LTSP_FATCLIENT=False
22:38
You only need one fat chroot
22:38
<Hyperbyte>
alkisg, right, so I build a fat client chroot
22:38
And when I set LTSP_FATCLIENT=False it'll be thin?
22:38
<alkisg>
Yup
22:39
<Hyperbyte>
And I can use ltsp-pnp to make a chroot out of the server installation?
22:39
<alkisg>
Yup, but you'll need the greek ppa then
22:39
!ltsp-pnp
22:39
<ltsp>
alkisg: ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
22:39
<DJUnreal>
hrmm
22:39
<Hyperbyte>
Well, I'm feeling experimental. Let's do it.
22:39
<DJUnreal>
i'm looking in that file and it's telling me to edit a different file lol
22:39
<alkisg>
DJUnreal: wheezy?
22:39
<DJUnreal>
"This file is regenerated when update-kernels runs. Do not edit, see /etc/ltsp/update-kernels.conf instead"
22:39
<Hyperbyte>
alkisg, thanks. :)
22:40
<alkisg>
np
22:40
<DJUnreal>
alkisg: yep, wheezy/sid combo
22:40* DJUnreal edits t'other file and updates it :)
22:40
<alkisg>
DJUnreal: ignore the warning, since you're only testing
22:40
So just edit the file directly
22:41
(I mean, you don't want the change to be permanent, just for a few reboots)
22:41
<DJUnreal>
there's also no entry for quiet splash... although there's the word 'quiet' on each of the individual label sections
22:41* Lns would like to know how those sis 200mhz cpus do w/ltsp if DJUnreal gets it going
22:41* DJUnreal assumes that needs removing
22:41
<DJUnreal>
Lns: i'll let you know
22:41
<Lns>
cool
22:42
<DJUnreal>
Lns: i'm running the server on an old IBM eServer x346 w/ 5GB RAM and a pair of 3.2GB x64 chips in it
22:42
<alkisg>
DJUnreal: yes, ubuntu also uses splash, while debian doesn't, just search/replace all quiets there
22:42
<DJUnreal>
GB? GHz
22:42
<alkisg>
(or just the first one)
22:42
<DJUnreal>
ok, booting now
22:42
<alkisg>
DJUnreal: ahhh, could you pastebin the whole file? Maybe the message comes from ifcpu64 etc
22:42
!pastebin
22:42
<ltsp>
alkisg: 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.
22:43
<DJUnreal>
it's showing exactly the same thing
22:43
hang on
22:43
gotta work out how to ssh my way into the box
22:43
<Lns>
DJUnreal, did you see http://www.parkytowers.me.uk/thin/neoware/CA5/CA5Linux.shtml ?
22:43* DJUnreal has it running as if it's the production environment
22:43
<DJUnreal>
Lns: yep
22:43
it's not needed though
22:44
the CA5 has a true PXE rom onboard
22:44
you just need to know how to enable it ;)
22:44
<alkisg>
The SiS processor falls into the 'i586' class and I'm not sure how many current Linux builds run on old CPUs.... ==> are you using the 486 kernel?
22:44* DJUnreal is using the i386 kernel
22:44* Lns thinks a custom kernel would probably do the trick
22:45
<DJUnreal>
i was hoping you wouldn't say that :P
22:45
<Lns>
haha
22:45
yeah i wouldn't want to either
22:45
<DJUnreal>
though i wonder if there's a native i586 arch
22:45
hrmm
22:45
from debian.org
22:45
amd64
22:45
armel
22:45
kfreebsd-i386
22:45
kfreebsd-amd64
22:45
i386
22:45
ia64
22:45
mips
22:45
mipsel
22:45
powerpc
22:45
sparc
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22:46
<DJUnreal>
eep! that was meant to be on one line!!!
22:46
but yeah... those are all the native archs... and i figured i386 was the safest option
22:46
<alkisg>
DJUnreal: pastebin?
22:46
<DJUnreal>
alkisg: FWIW the machine does exactly the same thing
22:46* DJUnreal is trying to work that one out now lol
22:47
<alkisg>
console only? apt-get install pastebinit
22:47
<DJUnreal>
ooh, good call
22:47
<alkisg>
And then pastebinit /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default
22:47* DJUnreal was gonna ssh from his desktop to his untangle filter server, then ssh from that to the ltsp server
22:48
<Lns>
Xubuntu might have a clue, these guys got it going with that (which were having same cpu probs) - http://www.understated.co.uk/2010/ubuntu-on-a-neoware-ca-5-thin-client/
22:49* alkisg doesn't see an "i386" kernel in http://packages.debian.org/search?keywords=linux-image
22:49
<alkisg>
Only 486, 686 etc
22:50
That's what I want to check by looking at pxelinux.cfg/default...
22:50
<DJUnreal>
i imagine it uses 486 then... i did an ltsp-build-client --arch=i386 and it worked...
22:50
<alkisg>
You can see the kernel with ls or by looking at pxelinux.cfg/default
22:50
I don't know which one is the default for arch=i386
22:51
<DJUnreal>
http://paste.debian.net/179115/
22:52
<alkisg>
kernel vmlinuz-3.2.0-3-486
22:52
So yeah I think that's the "safest" non-custom one... you might need a custom kernel
22:52
Anyway, /me waves goodnight
22:52* DJUnreal nods
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22:52
<DJUnreal>
thanks for the help :)
22:53
Lns: any further suggestions? :P
22:54
For What It's Worth the clients should handle LTSP just fine running on the server i'm throwing them at...
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22:54
<DJUnreal>
especially when i get my next lot of hardware donated to me...
22:55* DJUnreal is potentially being donated a fully populated IBM BladeCentre (only HS21's in there, but still) - each machine will have twin quad-core CPUs and 16GB RAM
22:59
<DJUnreal>
and fully populated, the bladecentres hold 14 blades
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23:07
<DJUnreal>
ooh
23:07
it suggests that using a 2.4 series kernel may work
23:07
so next ltsp-esque question... How do I build a second LTSP client using an older kernel?
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23:27
<baptiste>
I hope display works well on your sis 550
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23:29
<DJUnreal>
can't test that until i get it to boot!!!
23:29
need to get a kernel image that'll boot first... which i suspect is easy if i can work out how to get ltsp-build-client to use a specific kernel
23:30
<baptiste>
I've had the horror of being stuck in 800x600 60Hz, on a CRT monitor. this will give me nightmares, though I'm sure there's a way to fix it. changing from fx5200 to intel graphics allows me to choose 1024x768 or 1280x1024 but still at 60Hz - monitor settings tools pretend I can have "0 Hz"
23:32
can you create the chroot, then build the kernel image from that chroot - even if it means polluting it with build-essential and headers and stuff
23:32
<DJUnreal>
i'm not sure how to even start with that!
23:37
i will, however, take on that challenge another time, as it's 00:40 here now lol
23:39
<shh>
your day is just starting ;)
23:39
<DJUnreal>
i wish
23:39
somehow i think the eServers will upset the neighbours if i run them too late
23:43
<shh>
is there any way to add ipappend 3 automatically to client builds?
23:43
<vagrantc>
edit/create /opt/ltsp/i386/etc/ltsp/update-kernels.conf
23:43
IPAPPEND=3
23:44
sudo ltsp-chroot /usr/share/ltsp/update-kernels
23:44
<shh>
thank you. i see ipappend 3 for ubuntu 12.04
23:44
<vagrantc>
sudo ltsp-update-kernels
23:46
<shh>
cool, it's been ok doing it manually, but that saves me some time.
23:46
<vagrantc>
sure
23:54
<DJUnreal>
well, i'll return in a few hours
23:54
laters people
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