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


Channel log from 20 July 2008   (all times are UTC)

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01:24
<ace_suares>
hi all !
01:25
I run in a bit of trouble with ssh -X and since that is (I think) used in ltsp a lot, i might try and ask a couple of questions here... if there is still someone around.
01:26
what can make a session via ssh -X suddenluyu disappear ?
01:26
I have a non-free program that I try to run over ssh -X and it just vanishes halfway program startup.
01:26
all othere apps that I start that way, work fine.
01:27
I just have no idea where to start debugging that
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01:27
<ace_suares>
oh I guess everyone is sleeping :-)
01:39
<Ryan52>
ace_suares: what happens on the command line? any output?
01:40
ace_suares: if you run 'ssh -X -vvv host program' what happens? Any useful debugging info?
01:49
<ace_suares>
hi !
01:49
Ryan52: I can't really grasp the output of -vvv
01:49
Ryan52: but I can pastebin if you want
01:50
<Ryan52>
go for it.
01:54
<ace_suares>
http://pastebin.com/d34e64dcb
01:54
I took everything after authentication.
01:54
first is run aterm,
01:55
then from aterm i start 'win'
01:55
that command creates a new window, but halfway startup it disppears (I think becuasue the underlying 'win' program encounters soem problem and goes away)
01:55
aterm is then still working, and then i close that too.
01:56
Fact is, when I try the same command WITHING the guest OS, it works fine.
01:56
I had a quite similar problem when trying to use freenx.
01:56
it's just this app that does this. But how can I find why ????
01:57
<Ryan52>
well, I dunno...maybe you should ask in a more appropriate channel where there are actually people :D
01:57
<ace_suares>
and what reason can an app have to stop working over ssh -X one time, and antoer time not ???
01:57
<Ryan52>
it's probably the app's fault
01:57
can you sit at the ssh server and use the app?
01:57
<ace_suares>
yeah it probably is. But what is the diffenrece between ssh -X from inside the guiest OS and from outside?
01:58
it is ports ? is it env variables ? what can it be!
01:58
64bit vs 32 bit ?
01:59
<Ryan52>
idk. try asking in your distro's channel.
02:04
<ace_suares>
thanks anyway!
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04:10
<Mathis_>
hello
04:15
<psycodad>
moin
04:16
<Mathis_>
anyone tried creating a build-server system using LTSP ?
04:16
distributed build-server system
04:16
<psycodad>
are there known problems serving the nfs-root with the nfs-user-server or is it worth a try ?
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04:22
<stgraber>
psycodad: should work, but it's a lot slower than nbd+squashfs
04:22
Mathis_: I never heard of someone trying it but I don't see where the problem would be to create one.
04:23
Mathis_: all you need is to find the right software for it and install it in the LTSP chroot
04:23
<Mathis_>
well, my nodes are screen/keyboard-less
04:23
<psycodad>
stgraber: thx, i can't use nfs-kernel-server since i try to install ltsp within 2 vservers (boot and dm part on different machines)
04:24
linux-vservers, that is..
04:25
<stgraber>
psycodad: nfs-kernel-server and nfs-user-server should work in exactly the same way, I'd just suspect -user-server to be a bit slower or taking more CPU resources
04:25
Mathis_: won't be a problem as long as the BIOS doesn't fail to boot without a keyboard
04:25
<Mathis_>
it doesnt, already tested it
04:25
<stgraber>
Mathis_: all you need is the right daemon in /etc/init.d/ that'll start at boot time
04:25
<Mathis_>
thanks
04:26
I hope I can mix x64 and x32 machines
04:28
<psycodad>
stgraber: according to the vserver faq "It's not posible to run a NFS-kernel server inside a vserver, to work securely this would need a lot of work." therefor i'd rather try first with the user-space server. Thx so far, I already got it going almost meanwhile... ;)
04:29
<stgraber>
Mathis_: if your server is x64 that should be easy, otherwise you'll need to build the x64 chroot on another computer then copy it to the server
04:29
Mathis_: you'll need some DHCP magic to have the clients boot using the right kernel and initrd though
04:29
<Mathis_>
the nodes will be x32 only
04:29
<stgraber>
ok, so no problem
04:30
<Mathis_>
thought there might raise a problem using x64 as server, since its not mentioned (or I havent seen this yet)
04:32
<stgraber>
that's x86_64 right ? no ia64 or powerpc64 or any other weird thing ?
04:32
<Mathis_>
right
04:33
<stgraber>
ok, so just build the chroot with: ltsp-build-client --arch i386
04:38
<Mathis_>
I will remember that, thanks
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05:04
<Mathis_>
I could also just use one of the pre-build images ;-)
05:54
whats the default root password in an LTSP client?
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05:55
<Mathis_>
ah, "linux"
06:02
<cyberorg>
Mathis_, using kiwi-ltsp?
06:02
<Mathis_>
yes
06:02
works fine
06:02
<cyberorg>
good to know :)
06:02
<Mathis_>
you're the developer of it?
06:03
<cyberorg>
to install stuff in chroot follow the instructions that are given for nvidia/ati drivers
06:04
what do you want to install inside the chroot?
06:04
<Mathis_>
what about installing additional stuff not included in the distro?
06:04
icecream
06:04
<cyberorg>
put the rpm packages in extra-rpm folder
06:05
<Mathis_>
and then?
06:05
<cyberorg>
Mathis_, i am very interested in adding that, but now i have to go away for few hours, (F1 raceday), ping me, i am ususally here or in #kiwi
06:05
<Mathis_>
as far as I have seen, you've done a great job, btw
06:05
<cyberorg>
put them in extra-rpm folder and add them to config.xml as mentioned for nvidia
06:06
/usr/share/kiwi/images/ltsp/suse-11.0/extra-rpms folder
06:06
<Mathis_>
I just had to add several services and TCP ports manually to my firewall (just switching it off is not a good idea btw)
06:07
<cyberorg>
thanks, i wanted to get distributed computing stuff in it for some time now, really happy that you are doing it :)
06:07
<Mathis_>
gonna do it later, need food for now
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06:08
<cyberorg>
Mathis_, no harm in switching off firewall for internal network, it can be kept on for external device, but you are right we will add list of services for which firewall ports needs opening
06:09
<Mathis_>
dunno which zone my eth0 is, external or internal, since its a 192.168.0.0 network with some hardware router going into the world-wide net
06:11
<cyberorg>
if you put eth0 to internal zone, firewall is disabled
06:11
<Mathis_>
yeah
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06:11
<cyberorg>
btw, just run "kiwi-ltsp-setup" for the list of things you can do
06:11
<Mathis_>
I know, already done that
06:12
you should put in some parameter -? and --help
06:12
<cyberorg>
ok, ltsp-build-client etc is just wrapper scripts to that command
06:12
<Mathis_>
tried this and didnt do what I expected it to do (most other tools know that param)
06:12
<cyberorg>
Mathis_, yes i must one of these days :)
06:13
<Mathis_>
did you write the docs on en.opensuse.org ?
06:13
<cyberorg>
captain_magnus, is the one who helps me all these stuff, he has been MIA for a long time
06:13
<Mathis_>
the kiwi one
06:14
<cyberorg>
just http://en.opensuse.org/LTSP please improve it with whatever information you feel best
06:14
<Mathis_>
I prefer staying in background ;-)
06:15
<cyberorg>
Mathis_, that is background work ;)
06:16
<Mathis_>
is there documentation about disabling the X server and installing additional packages?
06:19
<cyberorg>
Mathis_, not about disabling Xserver, but you can change lts.conf SCREEN_07=shell
06:20
adding packages is same as adding nvidia/ati drivers, nothing much to it
06:20
<Mathis_>
well, it would save some RAM space for distributed compiling
06:20
<cyberorg>
yes indeed, currenly SCREEN_07=ldm, just change that
06:21
<Mathis_>
oki, thanks
06:21
<cyberorg>
how much RAM does the client have?
06:21
<Mathis_>
the clients have up to 1GB of RAM
06:21
<cyberorg>
it wont matter much though, i have booted clients with even 64M
06:23
Mathis_, for internals of kiwi, see /usr/share/doc/packages/kiwi/kiwi.pdf from kiwi-doc package
06:23
<Mathis_>
ah
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07:20
<ace_suares>
hi
07:20
i have a weirdness with ssh -X, if any of you is experienced in this...
07:20
ltsp is using the same with ldm isn't it ?
07:20
!seen ogra
07:20
<ltspbot>
ace_suares: ogra was last seen in #ltsp 14 hours, 26 minutes, and 17 seconds ago: <ogra> that took three days ...
07:21
<ace_suares>
!seen jammcq
07:21
<ltspbot>
ace_suares: jammcq was last seen in #ltsp 14 hours, 54 minutes, and 44 seconds ago: <jammcq> http://wiki.ltsp.org/twiki/bin/view/Ltsp/HackFest2008
07:22
<ace_suares>
oh wow hackfest...
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08:50
<klausade>
anyone know if it's possible to get rsync to tell how much it will actually transfer when I rsync an iso-image, without actually doing it?
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09:32
<beakburke>
thanks warren, that update fixed the break with the live cd tools
09:32
<warren>
5.1.11?
09:32
<beakburke>
yeha
09:32
I think
09:32
I'm not at home right now
09:32
Im doing this over a 1x-RTT cell connection
09:32
<warren>
I've since pushed 5.1.13, which has no visible changes for Fedora 9, but it enables two things:
09:33
- RHEL5 based server with a Fedora 9 chroot.
09:33
- Live Server
09:33
<beakburke>
well this I'll definitely test
09:33
<warren>
RHEL5 based server I got working, except it has a few problems: You have to install the chroot elsewhere. I'm just providing a tarball of it for simplicity.
09:34
<beakburke>
I have to boxes (identical) that the final FC 9 intstaller just crashes on
09:34
<warren>
Local Devices (ltspfs) and sound are not working yet.
09:34
<beakburke>
to= two
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09:34
<warren>
what kind of boxes?
09:34
<beakburke>
the funny thing is the they worked on FC 9 beta
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09:34
<warren>
did you file bugs?
09:35
what kind of errors?
09:35
<beakburke>
I don't remember, that was a couple months ago
09:35
I was going to, but I don't remember if I did.
09:35
Of course I don't have them in front of me now either, so I can' check
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09:36
<warren>
I'm not aware of anything known to break the installer
09:36
<beakburke>
not the ltsp installer
09:36
the actual FC 9 installer
09:37
Was strange
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09:37
<warren>
it failed during the installer or after install?
09:37
<beakburke>
Hence my interest in putting RHEL 5 on them
09:37
during
09:37
IIRC
09:38
<warren>
from what I've seen, RHEL5's desktop stuff is so old that it is a bit painful
09:38
I think I can get sound and local devices working
09:38
<beakburke>
yeah, I would prefer to get FC 9 working
09:39
but in the mean time, I could test out RHEL 5
09:39
since FC 9 isn't working right now
09:40
<jammcq>
laprag: hey
09:40
<warren>
Anyhow, I will post about the initial RHEL5 stuff on the list soon.
09:40
<beakburke>
cool, I'll be glad to take it for a spin
09:40
<warren>
and hopefully I can get a live server image built by Tuesday.
09:41
Wednesday I'm heading over to portland for the LTSP hackfest. I return the following Monday. (so next sunday's meeting is canceled)
09:41
<beakburke>
Is the install going to be the same as the FC 9 install from the wiki
09:42
<petre>
warren: I talked to robark about porting fl_teachertool to k12linux last week
09:42
he says he's got the new version mostly ready
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09:42
<warren>
beakburke: almost, except you untar the chroot instead of ltsp-build-client
09:42
<beakburke>
well that's good news!
09:43
that's not too bad
09:43
<warren>
petre: please ask him to write to the list when he has something for people to test.
09:43
<petre>
he had installed F9, but was waiting for the repos to actually sync up with with the latest stuff you'd posted
09:43
will do.
09:44
<ogra>
laprag, !!!!
09:44
<petre>
new version is really cool: thumb nail images of user desktops
09:44
their number and size scales with the admin's screen resolution
09:44* ogra wonders if he might be on the same flight with warren
09:45
<ogra>
warren, when do you fly out ?
09:45* warren checks
09:46
<ogra>
my flight is at 4:15 or so
09:46
<jammcq>
which day?
09:46
<ogra>
wed.
09:46
<warren>
ogra: Alaska Airlines flight 31, departs 4:15PM
09:46
<ogra>
yeah
09:46
<warren>
ogra: I should have took Jetblue instead of Alaska
09:46
<ogra>
thats the one :)
09:47
why ? is alaska bad ?
09:47
<jammcq>
u2 together?
09:47
<warren>
well, yes.
09:47
<ogra>
ugh
09:47
<warren>
and Jetblue is awesome
09:47
<jammcq>
but netjet is the best :)
09:47* ogra usually flies lufthansa
09:47
<jammcq>
but the ticket would be something like $60k
09:48
<warren>
jammcq: you have personal experience? =)
09:48
<ogra>
if i had known mark goes to oscon from boston i'd have asekd him for a seat on the jet
09:48
<warren>
Alaska was like $150 cheaper
09:48
<jammcq>
I checked the price once
09:48
that's as close as i've gotten
09:49
<warren>
I wonder if my new CEO flies coach.
09:49
Our old CEO flew coach.
09:49
<ogra>
but he's rather spontaenous with his flights, so not easy predictable
09:49
mark isnt our CEO
09:49
<beakburke>
didn't he used to work for an airline?
09:49
<jammcq>
you have a new ceo?
09:49
<ogra>
he's just employee
09:50
(indeed the most powerful one :P )
09:50
<jammcq>
ogra: who's the ceo, Jane ?
09:50
<ogra>
yep
09:50
<warren>
jammcq: as of January
09:51
<jammcq>
hmm
09:51
<warren>
so "new"
09:51
<jammcq>
one of the things I liked about Szulik was how he didn't have an office in NC. he had a cubical, like everyone else
09:51
<warren>
He was the CTO at Delta Airlines and helped bring it out of bankruptcy (and promptly left before the current energy crisis)
09:52
oops, he was COO
09:53
<jammcq>
so what time do you guys arrive in portland? I'll update the wiki
09:53
<ogra>
7:30
09:53
(:35 to be precise)
09:54
<warren>
ogra: I wouldn't be precise with Alaska =)
09:54
<ogra>
heh
09:54
<warren>
better answer: "Sometime in the evening"
09:54
<ogra>
i dont really care, as long as i can get out of waltham
09:54
its a quite boring place
09:54
<warren>
boring is all in your head
09:55
beakburke: petre: anything to report or any questions? otherwise we're done.
09:55
jammcq: hey I hear you play guitar too? I recently began taking lessons. I bought a classical guitar for now.
09:56
<beakburke>
not on my end, not until I try the new RHEL package and try the LTSP 9 installer on those uncooperative machines
09:56
<jammcq>
warren: yeah, I try. had lessons for many years, but it really hasn't "clicked" for me
09:56
<beakburke>
see you later
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09:57
<jammcq>
some people, like eHarrison pick that stuff up really quickly
09:58
<warren>
jammcq: I studied classical woodwind for many years, so this is a bit different for me, but i'm learning quickly.
09:59
jammcq: I'm inspired by the many videos of people playing their own arrangements of video game songs on youtube. I want to get good enough to play on youtube.
09:59
then I have no goals left in life.
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10:00
<laga>
make sure to uncheck "allow comments"
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10:00
<warren>
haha
10:02
<laga>
i'm not talking about your guitar skills, but about the amount of.. people youtube attracts ;)
10:07
<warren>
http://youtube.com/watch?v=OGC1SQHDl6g this is my current favorite, but it will be a while before I can play this.
10:08* laga hits F5 a few times
10:08
<laga>
i love adobe
10:13
<jammcq>
I'll talk to ya'll later. being called away for breakfast
10:13
<laga>
warren: pretty good video
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10:13
<laga>
i've also got an old guitar somewhere, but i just lack skill :(
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10:22
<ace_suares>
hi
10:24
i am stucj with an ssh -X problem. It's not 100% ltsp but it's related.
10:24
any hints woudl be appreciated
10:25
the thing is, on the guest OS I can ssh -X and start a certain app, and everythin is fine.
10:25
if I try the same from the host OS, the app crashes. Other apps (like xterm) work fine.
10:26
It's probably something to do with environment. but where do I look to solve this problem ?
10:30
<psycodad>
hello, i try to use SCREEN_05=startx -query 10.0.0.100 with ltsp5 on debian, i get the login window from 10.0.0.100 and can also use the mouse but i cant type. What am I doing wrong ? Logging in via xnest works fine to 10.0.0.100
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13:28
<ace_suares>
!seen ogra
13:28
<ltspbot>
ace_suares: ogra was last seen in #ltsp 3 hours, 33 minutes, and 52 seconds ago: <ogra> its a quite boring place
13:28
<ace_suares>
!seen jammcq
13:28
<ltspbot>
ace_suares: jammcq was last seen in #ltsp 3 hours, 15 minutes, and 40 seconds ago: <jammcq> I'll talk to ya'll later. being called away for breakfast
13:28
<ace_suares>
hi jammcq, ogra
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16:35
<Pascal_1>
bonne soirée à tous
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<ace_suares>
!seen ogra
18:54
<ltspbot>
ace_suares: ogra was last seen in #ltsp 9 hours and 0 seconds ago: <ogra> its a quite boring place
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