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Does my user have to belong to the audio group on the server?
hmm and i get a cannot mount volume error when i plug in a usb stick. org.freedesktop.dbus.error.accessdenied. I don't understand who's permissions i need to set to what..? this is on the thin client
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My date/time is wrong on all my thin clients. It's out by 22hrs on every one. The time is correct in the BIOs though and it's set for this country when I check with 'date -R' in a localapps xterm session.
What else could be effecting my date on my thin clients?
It's very annoying as when a person sends an email from thunderbird (running as a local app) it turns up with the wrong date.
but if they send using thunderbird (server app) it's fine.
nutron: is that lucid?
map7: do you use a timeserver in lts.conf?
yes it's lucid
no time server is set in lts.conf
Try similar to those
(the ip is the ubuntu ntp server, so you can keep that)
nutron: it's best if they *don't* belong to the audio group on the server
alkisg, I'm in Melbourne Australia so would I set the TIMEZONE to Australia/Melbourne
map7: ls -R /opt/ltsp/i386/usr/share/zoneinfo/posix
Australia/Melbourne sounds right, yeah...
alkisg, I've rebooted my thin client and it's still wrong
alkisg, I notice that my chroot image for the thin client doesn't have the ntpdate program, does it need that installed?
I think it should be.
root@alkis:/# LANG=C aptitude why ntpdate
i ubuntu-minimal Depends ntpdate
Urm, shouldn't you have ubuntu-minimal installed? But yeah, ntpdate is required.
ah, it's not in the path
it's under /usr/sbin
I'm thinking it maybe a firewall problem
ntpdate $TIMESERVER; hwclock --systohc --utc --noadjfile
That's what ltsp-init-common does - try to run those from a SCREEN_02=shell
(replace TIMESERVER with the actual IP)
alkisg, That works in screen 2
map7: In screen 2, try: getlts.cfg -a
Does that show you the TIMESERVER etc settings from lts.conf?
yes it does
could ldm be doing something to the date?
map7: so... if you run those commands, does ldm then show the correct date?
alkisg, this time when I boot and login to the GUI the time is correct
The time is "remembered" across boots
So I believe that if you manually set the wrong time and reboot, it'll be kept
maybe that's what happened
I don't remember doing anything like that though
No I didn't mean that
do I have to do that per machine
I mean that it's not working properly, and now it's only working because you set it manually
So you still have a problem to solve there
No you shouldn't have to do that per machine
alkisg, So I just rebooted my TC and it works
map7: do another test: in screen 2 set the wrong time, and run hwclock --systohc --utc --noadjfile
Then reboot. If it still has the wrong time, then it's either a local problem or an upstream bug
(or, boot another client and see if it gets the correct time)
just rebooting now
After a reboot it's still the wrong time
so it remembered what I set
So the ltsp init scripts are not working for you
How are the clients accessing the internet?
Through NAT on the server?
I've got an inhouse time server
so I've set the timeserver to that
and still have the problem
Let me recheck here locally that everything is working ok...
would the problem be that the call in ltsp-init-common doesn't include the full path to ntpdate
as my path doesn't include /usr/sbin
for some reason
Yup, all working here.
line 254 of my ltsp-init-common
map7: the root path in screen_02?
or the user path from ltsp-localapps xterm?
just checked the path in screen_02 and that's correct
so it's only for the user that /usr/sbin isn't in the path
can you post your lts.conf ?
when I run ltsp-localapps xterm that is
Or the result from getltscfg -a?
alkisg: "pastebot" :: The LTSP pastebot is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebot, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
192.168.200.1 is my local timeserver
It looks good... well the only thing I can tell you now is to try to debug ltsp-init-common itself
# Set up timeserver
if [ -n "$TIMESERVER" ]; then
echo "I'm going to run: ntpdate $TIMESERVER; hwclock --systohc --utc --noadjfile"
(ntpdate $TIMESERVER; hwclock --systohc --utc --noadjfile) &
erm sorry, I also wanted to put:
echo "Have a shell and try it yourself:"
(right after the first echo)
Then ltsp-update-image etc
Thanks I'll start there.
I'll make a backup first :)
map7: or better yet, but those 3 extra commands after the actual ntpdate call, so that you can check if it's succesful before runing it manually
yep that's what I've done
ok i've built the image
ok now it will not boot as it's just stuck on the Ubuntu screen.
Ah, remove quiet splash from pxelinux.cfg/default
So that you actually see the shell there
you still here?
alkisg, ok now I see that it's set to the correct time there
alkisg, but it doesn't drop me to a shell for some reason it just sits there
map7: uh, maybe the keyboard module is not yet working or something
But is it the correct time because it was previously correct? Or did it actually set the correct time there?
I can swap VT's with Ctrl+alt+<function key> but there is no shell prompt to be seen
Yeah it's too early in the boot process to get a shell
(before upstart keyboard would work at that point though)
so i'll set the time to something wrong, then reboot with our modifications and see if it fixes the time
if it does then it doesn't make any sense
Right again :)
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As I have an obsession to xbmc, have anyone tried to run it in TC?
muppis no but I run mythtv on many diskless TC's
(7 off the one server)
map7: really, that's awesome.
yes I'm just upgrading the server so that it can handle 12 TC's
map7, well.. I'm just planning to run 2 xbmc's and vdr as a backend in ltsp -server.
they are on a Gigabit switch with an Intel X25-M SSD in the server
alkisg: do you know which package allows users to unmount drives? (I remember seeing some commentary on the LOCAL DEV variable), it's a users and groups application for gnome I think, though I don't know what it's called :)
muppis, I don't see why it wouldn't work. I would recommend a gigabit switch though
map7: that's pretty cool, I'll have to play with it to see what I get. Simple administration.
nutron, when you create your ltsp client images there are mythtv options in there, you need to use these
I think it builds a 'fat client'
map7: oh? options in where?
map7, yes, that wouldn't hurt. As now I randomly watch live-tv over wlan and it work well, so maybe gigabit would overkill for now.
oh you're using mythbuntu?
nutron: what drives? ltspfsd driver like usb sticks?
nutron, yes on my mythtv server
ahh, must be done for you mostly, I'm using debian, should be more exciting to set up.
map7: what version of myth is mythbuntu at?
0.23 or you can opt to run 0.24 with the latest patches
I run 0.23 with the latest patches
with Autobuild it's quite good
alkisg, I changed the date, rebooted with my mods and ltsp-init script fixed the date, go figure???
nutron, you should be able to install the muthbuntu diskless server/client packages under debian though
map7: yup, it makes no sense unless it's a race condition (some times working and some not, depending on the loaded modules etc)
map7: try to put a "sleep 10" before the ntpdate call inside the parentheses, and leave it at that...
alkisg, yeah it's weird. Thanks for you help at least I know how to fix it manually if it happens again.
nutron: I'll be gone for some time, so if you want to answer about the drives (ltspfsd or not) you can find me later.
did you ask me a... oh
I'm looking into gconf. As all of my users are in ldap, and it doesn't give me an option to allow gnome to unmount the drive
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https://wiki.ubuntu.com/EnableLTSP5LocalDevices there's an image near the bottom about fuse devices.... I don't have this in debian, what program is this?
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nutron: like a told you some days ago, you're not supposed to unmount usb sticks - just pull them off after 2 seconds of inactivity
ltspfsd flushes written data every 2 seconds
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alkisg: Morning! In further PXE/gPXE developments, I believe it may be a race issue. On gPXE it successfully boots about 3 out of every 5 times. When it doesn't, it exhibits the same problems as 'normal' PXE -- and I suspect gPXE is doing a normal PXE boot too, because it looks for all the pxelinux.cfg/ files
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Hi Blinny. Yes, gPXE is doing a normal PXE. If I were you I wouldn't be wasting any more time on this, I'd try with a Lucid chroot instead.
As it might indeed be a race issue which might take you a long time to solve and which is solved already in newer versions.
You can find a lucid chroot in the edubuntu dvd, you don't need to install lucid to try it.
(you can have a lucid chroot on a karmic server, you don't need to upgrade the server)
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alkisg: What about Lucid chroot on a Hardy server?
For some reason I had it in my head that gPXE did etherboot.
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Blinny: sure you can run a Lucid chroot on a Hardy server (afaik). gPXE is the successor of the etherboot project, ran by the same people.
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Anyone have a howto for running a lucid chroot on a hardy server?
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on my thin client i can't create unix sockets
how can i allow this
On a process running on the serveR?
or on a localapp running with a sshfs home dir?
Try putting SSH_FOLLOW_SYMLINKS=False in lts.conf
ok let me reboot
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still the same message
I think it should be working this way. If it doesn't, then you'd need to use NFS instead of SSHFS.
well i worked last week
before the latest package update
now, i can't start chrome
its a local app
If chromium no longer works over sshfs, there's not much LTSP localapps can do... Downgrade? Use nfs instead? Something like that...
yeah, i downgraded but it still behaves strangly
strange thing is
if i run chromium-browser as root
it runs ok
root isn't using sshfs...
So that's not strange, it's expected :)
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ok, so how do i switch to nfs ?
Keep in mind that that decreases security
alkisg: are you familiar with mknbi/mkelf issues with old etherboot clients?
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_UsUrPeR_: I heard about them, but ever since I discovered gpxe I've never used etherboot anymore, so I haven't looked for any solutions...
alkisg: Yeah, I have some older clients I would like to get working with etherboot that are not capable of gpxe, and am having a problem getting them to boot.
I read the reports, I just don't use etherboot so I haven't tested it at all.
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I've setup ltsp with Ubuntu Lucid. I'm new at this, but I've got clients up and logging on fine. Server kept crashing so I installed Nvidia proprietary drivers, which fixed the crashing. But installing Nvidia drivers has resulted in clients behaving strangely... fonts are upside down (same as this blogger found... http://arkienet.com/blog/2010/04/ubuntu-10-04-upgrade-results-in-upside-down-fonts/ . If I remove the nvidia drivers for
server, the clients go back to normal. If the clients and server are completely different hardware, why would installing nvidia drivers for the server effect the clients? And how do I end up with Nvidia drivers installed for the server, but not change the clients?
alkisg: "compiz" :: if compiz is giving you problems, one way to disable it for all users is: sudo gconftool-2 --direct --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory --type string --set /desktop/gnome/session/required_components/windowmanager metacity
excellent... I understand. Thanks :)
See here for the long story: https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/441586
that explains it... and that is exactly my problem. Excellent.
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alkisg: if you had a nickel for every question you answered here... :)
One more for you: Any public HOWTO for running a Lucid chroot from a Hardy server?
Or do I simply pull ltsp-server-standalone from a Lucid repo and pray?
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while I can't possibly claim that I fully understand how local apps truly work (the home dir is fuse mounted ..etc), but is the server's /usr/ somehow fuse mounted? for example, in firefox, if I want to load a pdf, evince is not available, this is normal, but can I make evince on the server available to the local app?
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Good afternoon, I have a question..... I have 1 ltsp server set up (Ubuntu 10.4 from the alternate cd), and have the image set up to do ldap authentication. I am able to log into the client via ssh without any problem, however, when trying to log into gdm, I get the following error: http://pastebin.com/45B0Lg4v
there is also an error on the screen about glib and a similar error
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nutron: regarding your localapps question, the simplest way to make a localapp available to the thin clients is to install it in the thin-client's chroot. mounting the server's /usr, while theoretically possible, looses nearly all of the advantages of package management, in particular, assuring that package dependencies are properly satisfied
which gets really important for dependencies on shared libraries and the likes
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Can I specify the driver for x in lts.conf?
n/m i found it... was looking at an old man page
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must have been *really* old...
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