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


Channel log from 4 May 2008   (all times are UTC)

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05:16
<Jbassett>
Good morning
05:17
Trying to get a USB webcam working which is plugged into a LTSP client
05:17
I want it to serve the image to a server via ftp or other means
05:18
I am trying this package first ltspwebcam-0.1.tar
05:18
But when i run install.sh I get this error:
05:18
ltsp_kmod's are not installed. Please install them.
05:18
<laga>
Jbassett: are you using ltsp 5?
05:18
<Jbassett>
I have not found much reference to these
05:18
4.2
05:19
<laga>
ah. sorry, i've never worked with ltsp 4
05:19
<Jbassett>
ah ok
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06:09
<F-GT>
any pointers of where to look as to why my ltsp client is dropping to busybox with an initramfs prompt?
06:09
hosting ltsp5 inside a vm and trying to pxeboot from another vm
06:11
<ogra>
what vm software ?
06:12
<F-GT>
vmware server
06:12
<ogra>
make sure there rund no vmware dhcp server
06:12
*runs
06:13
thats a typical prob if there are two concurring dhcp servers in your network
06:16
<F-GT>
did have 2 .. shut one down... still same problem
06:17
<ogra>
what ip does the client get (it should show that above the busybox prompt) and is that conform with the settings in the servers dhcpd.conf ?
06:18
<F-GT>
yeah picks up the ip okay
06:20
trying again ... yeah def right ip
06:20
<ogra>
what distro/release is that ?
06:20
<F-GT>
gutsy
06:20
<ogra>
hmm
06:21
i know for sure it works with vitualbox right out of the box after running ltsp-build-client
06:21
did you tweak any of the defaults ?
06:21
<stgraber>
it usually also does with VMWare when VMWare's dhc
06:22
when VMWare's dhcp server is not running
06:22
<ogra>
right, i thought so
06:22
<stgraber>
(that's when using VMWare's internal networking)
06:22
<F-GT>
only thing i've changed the ip of the server but ran the ltsp-update-sshkeys afterwards
06:25
<stgraber>
maybe NBD trying to access the server on the old IP ? I don't really see why it would do that though
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06:26
<F-GT>
where should i look to check that ?
06:26
been looking for logs but can't see anything useful
06:27
<stgraber>
well, I guess you don't have a log output from nbd-server on your LTSP server, right ?
06:27
<F-GT>
correct
06:28
<stgraber>
can you try poking your server's tcp/2000 port ?
06:29
telnet <ip> 2000 should give you something like : NBDMAGICB ...
06:29
(I'm not sure telnet is in the initramfs though)
06:29
<F-GT>
nbd-server isnt started
06:29
<ogra>
client should be
06:29
thats fine, nbd-server is supposed to be run by nbdrootd from inetd
06:30
s/client/telent client/
06:30
<F-GT>
ok ... telnet isnt avail from the initramfs
06:30
<stgraber>
try : nc <ip> 2000
06:30
<ogra>
oh, right, initramfs ...
06:30
<stgraber>
this one should be installed
06:30* ogra had chroot in ming :)
06:30
<ogra>
*mind
06:31
<stgraber>
yeah, initramfs is very limited when it comes to debuging :)
06:31
<F-GT>
cant find nc either
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06:33
<stgraber>
hmm, okay ... do you have some kind of standard computer connected to that same network that you could use to test nbd ?
06:33
something that has telnet or nc :)
06:33
<ogra>
test it on the server ;)
06:34
talnet localhost 2000
06:34
*telnet
06:34
<F-GT>
tried that ogra
06:34
nope
06:34
connection refused
06:34
<ogra>
grep nbdrootd /etc/inetd.conf
06:35
(should return a line pointing to your image)
06:35
<F-GT>
didnt pass back anything
06:36
<ogra>
ls -l /opt/ltsp/images
06:36
does that return anything ?
06:36
<F-GT>
no
06:36
<ogra>
hmm, how exactly did you install ltsp ?
06:37
<F-GT>
from the alternate cd
06:37
<ogra>
and then ?
06:37
<F-GT>
configured my dhcpd
06:38
<ogra>
and you get to busybox without creating a client setup ?
06:38
<F-GT>
yeah
06:38* ogra wonders how thats possible
06:38
<ogra>
by default there are no kernels if you dont build the client
06:38
<F-GT>
i tried to run the client setup
06:38
let me find the output
06:39
<ogra>
and the dhcpd.conf we install for ltsp doesnt point to anything that could provide a bootkernel without running the build
06:39
its all designed to run directly out of the box if you follow the install instructions on the wiki
06:39
!ubuntu
06:39
<ltspbot>
ogra: "ubuntu" is a Debian based GNU/Linux distrubution that includes a Ubuntu specific version of LTSP. It can be found at http://www.ubuntulinux.org. to install ltsp on ubuntu: https://help.ubuntu.com/community/UbuntuLTSP/LTSPQuickInstall
06:39
<ogra>
(the latter link ... for gutsy see the bottom of the page)
06:40
"Installing on top of an already running desktop system"
06:40
<F-GT>
i was already on that page :)
06:40
<ogra>
right, did ltsp-build-client finish successfully ?
06:41
(apparently it didnt)
06:41
<F-GT>
no... said that /opt/ltsp/i386 already exists
06:41
and fails ... so i thought it may have already done the basics
06:41
from the install ... obviously my bad :)
06:42
just aborts
06:42
<ogra>
wipe /opt/ltsp/i386 and start over
06:42
sudo rm -rf /opt/ltsp/i386 && sudo ltsp-build-client
06:42
<F-GT>
already done
06:43
<ogra>
good, doe it run now ?
06:43
*does
06:43
<F-GT>
wait it to delete from the vm
06:43
waiting
06:43
<ogra>
ah
06:43
<F-GT>
its retrieving some stuff atm
06:44
<ogra>
good
06:44
<F-GT>
thanks for the help btw
06:44
<ogra>
that takes a while, get a coffee or so :)
06:44
it will tell you in the last line of output if it built successfull
06:45
ah, well, in your timezone beer is probably more appropriate now :)
06:45
(than coffee)
06:45
<F-GT>
hahaha
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07:21
<F-GT>
great
07:21
works a treat .. thanks ogra
07:21
<ogra>
:)
07:22
<F-GT>
i did think about nuking that dir .. but after looking inside it and all the files figured it had been setup by the installer
07:23
good to know anyway.. thanks
07:23
<ogra>
welcome :)
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09:18
<petre>
morning all
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09:36
<warren>
hey, I'm here but really tired
09:36
<petre>
up late?
09:36
<warren>
yeah
09:37* eharrison was at a conference this week, did not get any devel work done...
09:37
<warren>
https://fedorahosted.org/k12linux/wiki/Meetings by last week's meeting notes a lot was fixed, but I personally spent most of my time working on F-9 testing to get it out the door
09:37
So nothing new to report.
09:38
Oh, one thing.
09:38
http://bugzilla.gnome.org/show_bug.cgi?id=526320
09:39
A fix for all inaccessible mounts from ltspfs appearing on the desktops of other users (with gvfs).
09:39
Not everyone is happy with this fix
09:39
but F-9 is shipping with it
09:39
it probably needs improvement
09:39
GNOME upstream has severe reservations with Ubuntu's solution from gnome-vfs.
09:40
worried it will deadlock
09:40
see the bug for details
09:40
<ogra>
just as a note, ubuntu never had any reports about any deadlocks with that patch within the two years its used
09:41
*its been used
09:43
<warren>
you conveniently ignore that gnome-vfs uses ugly tricks to try to avoid deadlocks
09:43
like forking off the process that does it
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09:45
<ogra>
warren, i ignore nothing, i just say that we never had problems in gnome-vfs with that patch
09:45
i dont care what weird hacks the upstream source used internally :)
09:46
<warren>
go convince upstream to change gvfs then
09:46
they already explained that gvfs doesnt use the same hack as gnome-vfs and it WILL deadlock if it always uses access()
09:47
<ogra>
you are mixing up two unrelated issues
09:47
the way gnome-vfs works the patch was fine
09:47
the way gvfs works it might not be fine
09:47
they are two different implementations
09:48
<warren>
that's what I'm saying
09:48
<ogra>
which you seem to ignore constantly
09:48
no
09:48
its not waht you are saying
09:49
<warren> GNOME upstream has severe reservations with Ubuntu's solution from gnome-vfs.
09:49
we're talking about gvfs and you constantly point to gnome-vfs
09:49
just ignore gnome-vfs, its dead ;)
09:50
<warren>
ok, does anyone have any questions or any other topic to discuss?
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09:52
<eharrison>
no questions here.
09:52
<petre>
nope, not today
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09:53
<warren>
ok, we're done then
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09:55
<petre>
dan_young's timing is ironic
09:55
<dan_young>
?
09:56
<warren>
dan_young: nothing new to talk about so we finished for today
09:56
dan_young: you have anything new?
09:56
bugs?
09:56
patches?
09:56
<dan_young>
warren: no, just finishing up daddy duty and checking in
09:57
mbrown had a bug re: sudo ltsp-build-client
09:57
blowing up on ip not being in the path
09:59
<ogra>
smells broken, that should be in /sbin in fedora as well, no ?
09:59
<eharrison>
dan_young: fixed in ltsp-5.1.7-2.fc9
09:59
<dan_young>
ah, excellent
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10:23
<itais>
ogra: I've been dealing with localapps and libnss-extrausers and I see one important problem
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10:24
<itais>
extrausers limit gid to >500
10:24
<ogra>
which should be fine, no ?
10:24
<itais>
so you can not use groups <500, so the user can not be in the group audio, ergo it can not connect to pulseaudio locally and local apps needing sound will not sound
10:24
<ogra>
(ubuntu user accounts start at 1000, i thought debian did that as well nowadays)
10:25
<itais>
Debian has been doing it for user accounts before ubuntu appears, but you need to put the user in some system groups, like audio, and maybe fuse too
10:25
<ogra>
just use adduser for adding the account to teh groups after having the user available
10:25
<itais>
and you can not do it with extrausers, unless I'm missing something
10:26
yeah, the user is available but localapps can not use audio,video, localdevices, etc.
10:27
<ogra>
LANG=C chroot $INSTROOT useradd -s /bin/bash -m -p "${PASS}" -c "${FULLNAME}" $TARGETUSER
10:27
for group in $DEFAULTGROUPS; do
10:27
LANG=C chroot $INSTROOT adduser $TARGETUSER $group >/dev/null 2>&1
10:27
done
10:27
thats from a script i use for classmate PC installs
10:28
DEFAULTGROUPS="adm dialout cdrom floppy audio dip video plugdev scanner fuse lpadmin admin netdev"
10:28
<itais>
that's fine, but you're not using extrausers there
10:29
<ogra>
no, but if you use that for loop after adding the user it should just work
10:29
<itais>
I'm thinking that using extrausers is not needed, if you just add /etc/passwd, shadow & group to tthe bindfiles list in /etc/default/ltsp-client-setup
10:30
<ogra>
right
10:30
we dont need it in ubuntu at all where we have a writable unionfs setup
10:30
<itais>
so I don't see a good reason to use extrausers, as things can be done easier (I was thinking of some secure problem with this but I could not find it)
10:31
yeah, you have writable uninofs when using nbd, like me, but I'll use nbd at the end, for the tests using nfs is much more confortable
10:31
<ogra>
we dicussed that last week and i agreed on the same sentence before ;)
10:31
<itais>
then I misunderstood you, I thought that you prefer using extrausers upstream :-D
10:32
perfect for me then, have to go back to some father duties ;-)
10:32
<ogra>
no, its just in the spec (and i think it talks about "we need to inspect if extrausers makes sense" or so)
10:33
i think useradd plus the for loop is the easier approach and surely its better to maintain that than any obscure extra pam lib ;)
10:34
that spec simply points out the possibilities ... we ned to go through them and check them all for proper implementation
10:34
(one taks that you just did for us ;) thanks a lot for that btw)
10:34
*task
10:38* ogra wonders what fedora4 used as dhcpd ... apparently that doesnt properly support next-server (just had a support where that was completely ignored)
10:41
<dan_young>
ogra: dhcp-3.0.2
10:41
<ogra>
hmm, that should work then
10:41
weird
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12:13
<johnny>
ogra, how can i found out what is in hardy-proposed outside of trying to read that gz file :)
12:13
<ogra>
follow the hardy-changes ml
12:13
:)
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12:17
<johnny>
lol.. that sounds insane
12:17
i need to track down this issue with my net freezing
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12:17
<johnny>
peeps are getting pissed :(
12:17
nothing in the logs afaics
12:17
it just goes dead, haveto reboot :(
12:19
it seems to happen once a day
12:19
haven't been able to replicate it
12:19
outside of normal working hours
12:40
<laga>
maybe you can catch a backtrace by hooking up a serial console (eg another box with a terminal tool). or use 'netconsole',
12:41
<johnny>
the net goes dead
12:41
not the whole machine
12:41
<laga>
oh, sorry.
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13:45
<johnny>
it's weird tho.. it seems to happen once a day, and that is it.. but not at the same time afaict
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16:39
<Gadi>
ogra: ping
16:40
warren: u around?
16:54
<johnny>
Gadi, yo
16:54
i'm here.. but nobody else is :)
16:55
<Q-FUNK>
hey
16:55
<johnny>
quiet down Q-FUNK
16:55
only i am here :)
16:55
<Q-FUNK>
:-P
16:56
<johnny>
maybe Gadi doesn't think we're cool enough
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17:19
<warren>
Gadi: ?
17:23* cliebow Gadi must be in the cone of silence..
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17:50
<killsalad>
hi all, right now i'm writing a paper about LTSP, and i stuck with section which i called limitations of clients, please tell me what else can I plug to client beside printer and usb stick?
17:54
<ogra>
Gadi, short pong, but i'm about to vanish into morpheus arms ....
17:58
<killsalad>
anybody can help me ?
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18:14
<johnny_>
ugghz..
18:22* ogra grins about someone claiming on the ubuntu-users ML that redhat is 100% free :)
18:24* ogra guesses they have never heard of fedora :)
18:24
<ogra>
or just dont get what the difference is
18:24
<johnny_>
ogra, this issue with network dieing once a day still exists..
18:24
i'm stumped :(
18:24
nothing but a reboot fixes it :(
18:24
<ogra>
did you dig LP for bugs ?
18:25
and did you ask in #ubuntu-kernel ?
18:25
<johnny_>
well i don't know if it is a kernel issue.. and having trouble coming up with terms to use that give me any decent results
18:26
<ogra>
well, its most likely a driver issue
18:26
<johnny_>
b44 is hard to search for :(
18:26
too much wifi crap comes up
18:27
hmm.. realized i don't have gigabit ethernet on that machine..
18:27
maybe i should just buy a giganet card :)
18:34
<ogra>
well, it worked before
18:39
anyway
18:39* ogra has his weekly intel conf call in 6h ... time for bed ....
18:39
<ogra>
nighty
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19:14
<jammcq>
hello folks
19:16
<rjune_>
yojimbo!
19:16
what's new?
19:16
<jammcq>
hey rjune_
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19:17
<jammcq>
just got home from Michigan Tech. my daughter graduated yesterday
19:17
<rjune_>
Congrats to her
19:17
we're just getting ready for dinner.
19:17
<jammcq>
thanks
19:17
<rjune_>
what was her major?
19:18
<jammcq>
molecular biology
19:18
she starts grad school at Penn state in august
19:18
<rjune_>
cool
19:18
<jammcq>
going into forensic molecular biology
19:18
she'll be studying dna
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19:27
<achandrashekar>
hello..is openmosix still viable for such implementations as k12ltsp??
19:27
Im curious about acutally having the nodes "do something" when they are not being used.
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19:36
<johnny_>
achandrashekar, openmosix is unmaintained
19:37
there may be other cluster options tho..
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19:54
<Gadi>
hey, all - sorry bout that putting kids to bed
19:55
jammcq: any luck getting scottie?
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20:57
<rjune_>
!g
20:57
<ltspbot>
rjune_: "g" is Gadi!!!!!!!!!!!!!!!!!!!!!!!!
20:57
<rjune_>
Gadi: what are you doing around this late?
20:58
<Gadi>
hey rjune!
20:58* Gadi is ttrying to use a last-minute award travel that expires at midnight
20:58
<rjune_>
I didn't even think you had a computer at home
20:59
<Gadi>
lol
20:59
it keeps me warm in the winter time
20:59
:)
20:59
<rjune_>
while the rest of us are here at night, ignoring our families, you're never anywhere to be found.
20:59
<Gadi>
yeah, well
21:00
seems I dont miss much
21:00
awful quiet round here
21:00
<rjune_>
not usually
21:01
specially on a sunday
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