I'm going weird bouncing from local to remote
I've to ask you something
I've successfully configurated the server and a thin client (ltsp on ubuntu 10.04) and everything works nice but: from the client apparently I cannot "escape" from the X session on the remote server, so I can't look inside /dev/ for example
and I need it, to debug
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giaco: what are you trying to do?
you want to access a terminal on the thin client?
Appiah, yes, I need to look inside /dev
on the thin client
I was getting confused while looking inside server /dev from the thin client :P
did you set a root passwd in the chroot?
I've just found something better
option screen_XX=shell in lst.conf
but you still need to be able to login with a password
once you access the shell
it has spawned a root shell
the shell screen script opens right to a shell
with the wrong keymap
thats new to me
if you're able to login to the server, you should be able to run ltsp-localapps xterm
which would give you an xterm running on the local thin client
really? that's cool
but I need a user and password on the thin client, no?
not using localapps
I'm booting with ldm right now, let me try
I've spent the whole night testing for the first time ltp, and everything has worked out of the box
I've another question now: do you know how to get this fashion app on my server? http://doc.ubuntu.com/edubuntu/edubuntu/handbook/C/ltsp-tcm.html#id597811
ltsp-localapps xterm is working nicely. but what if I want a root shell there?
is that not root?
I'm going to sudo chroot /opt/ltsp/i386
thats not going to effect the current client
does it say yourusername@thinclient21
or does it say your servername?
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I've just done as the FAQ says, chroot from the server into i386, passwd, rebuild image
you are setting a password after all..
btw, what about http://doc.ubuntu.com/edubuntu/edubuntu/handbook/C/ltsp-tcm.html#id597811 ? how can I get it? it not installed into my server
dont think that software is keept upto date..
its the same url
opyright © 2004, 2005, 2006 Canonical Ltd.
Multiple server setup dont mention ltsp-cluster
so I think that edubuntu handbook is old..
the ltsp-specific parts of the edubuntu handbook is what became ltsp-docs
i don't think thin-client-manager is maintained, but i could be wrong
I think someone who was invovled in LTSP but no longer was the maintainer
I'd like to ask a last question now
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I need to configure a printer connected to a thin client. I've already "exported" it using lts.conf, now I need to configure CUPS on the server but .. i need the ip address of the client
now, as the client ip address is under DHCP, it would change over time
how is it suppose to work?
if it's a specific thin client, configure DHCP to always give it the same ip address.
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my first printer configuration is not working, if I tell you my steps could you plese tell me where's my mistake?
1) I've a serial printer connected to /dev/ttyS0 on the thin client, echo hello > /dev/ttyS0 from the thin client local console works
2) I've inserted PRINTER_0_DEVICE=/dev/ttyS0 in lts.conf
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3) I've checked the thin client local ip: 192.168.0.21
4) I've launched localhost:631 on the server, I've created a printer with URI socket://192.168.0.21:9100
5) I've launched print test page
nothing happens, printer says to be in status idle - "connecting to printer"
giaco, here is what I've included 'PRINTER_0_TYPE=U' and 'PRINTER_0_PORT=9100' to my lts.conf as well.
even though these maybe default
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I've pushed in my lts.conf every printer parameter, rebooting now
IT WORKS! Yeah!
thank you map7
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Yesterday, my lstp server got shut down before the last cilent logged out. The client was running opera as a local app. Today when everything booted up it seems that something is not right with running local apps. opera start as a local app but never appears. If you try to start a second instance, it will tell you it is already running. If I try to run xterm as a local app it appears but some command such as ps and ls do not execute and
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frederickjh: Error: "localapps?" is not a valid command.
ltspbot` local apps?
frederickjh: Error: "local" is not a valid command.
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Yesterday, my lstp server got shut down before the last client logged out. The client was running opera as a local app. Today when everything booted up it seems that something is not right with running local apps. opera start as a local app but never appears. If you try to start a second instance, it will tell you it is already running. If I try to run xterm as a local app it appears but some command such as ps and ls do not execute and
brings you to local console
if you know the password you can login as root
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then you can ps /ls etc etc
ok, but my problem is local apps will no longer run after the shutdown of the server while a client was running.
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Is there a way to fix this from the root console?
is the server up again ?
terminal wont be able to work at all without a server
Yes, and the client rebooted.
The shutdown was last night.
there should be no problems with rebooting the server
The server is up this morning and the apps will run on the client on the server but not as local apps.
as far as local apps are involved
The local apps hang.
They start but never appear.
Or hang the terminal window.
Depending on if they are a gui or terminal command.
the ones I know that do not run as local apps are opera ps ls
top pwd do work ok.
That is where I was trying to run the commands.
The server booted find and the client booted fine.
how do you star the local app?
The local apps now do not work.
With the menu.
They are setup in the lts.conf file.
for the client.
They were working before no problem.
I found this: https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/107526 comment 5, that leads me to believe there is a problem related to the shutdown.
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It is weird if I am logged into the server and try to shut down with running client it will force me to give my password, but if I log out and then at the log in screen click shutdown it just does it. This is on Ubuntu Lucid.
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Ok, looks like it is not system wide.
It is not hooked to the user either.
But to the terminal.
I logged in to an identical client and could run local apps no problem. Access the root terminal no problem.
But when I logged in as the same user on the client that was running when the server was shut down last night the local apps do not work and the root terminal is not working properly.
So, Anybody know where files related to a client are stored that maybe did not get deleted last night and are still hanging around and causing these problems?
Actually anybody know where files related to local apps running on a client are stored that maybe did not get closed or permissions changed?
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In fact clicking on the Preferences button on the client login screen does not bring up the menu on the affected client.
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I figured out that /tmp was not being empty on boot with Lucid, so I am going to reboot and see if that helps now that I have fixed that.
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Ok, clearing the /tmp directory fixed the problem.
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frederickjh, if your find helps the bug report
post it there too
frederickjh, you cleaned /tmp on the server right ?
isn't /tmp cleaned automatically in every reboot ?
I used the fix in the post I listed above to fix it so that on boot it would clear /tmp. Then rebooted.
It should be but with Lucid Ubuntu is now starting more stuff with upstart.
And the cleaning was set to run once /tmp was mounted, but it needs a file on /usr to do it job.
So, if it does not happen to get mounted before the job fails.
Upstart starts stuff in parallel.
The fix is to tell the /tmp clean job to run when all the local file system has been mounted.
any developer here ?
frederickjh: Error: "developer?" is not a valid command.
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frederickjh, you should file a bug instead of mangling the documentation
"weird root terminal behavior on the client" doesnt really belong on that page
any developer here ?
I did both ogra.
What do you call simple commands like ls and ps not working?
frederickjh, does your /tmp/ directory have a +t flag ?
Not sure, why?
ls -l |grep tmp
ls -l / |grep tmp
it sets the directory as temporary
Yes it has the -t flag.
The reason /tmp was not being cleaned is stated here: http://ubuntuforums.org/showthread.php?p=9558409#post9558409
Not sure how much you know about upstart. I think the concept is good but it is causing some problems along the way. It is suppose to be sysv compatable but I have sysv init scripts that are failing for the same reasons.
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The startup system that Ubuntu introduced way back at Edgy but did not have much starting with till Lucid.
It is suppose to replace sysv.
but be compatible with.
The basic concept is instead of all the startup processes waiting in a long line to start after the one before finishes, things are started in parallel.
They start after certain events have started, stop, etc.
In this case the upstart job writer figured that when /tmp was mounted that /usr would be as well and he would have everything he needed to run his job.
What he did not count on was that if /usr was on a seperate partion it might get mounted after /tmp and the job would fail.
ogra is there a place to file a bug report for ltsp for this too?
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frederickjh, i wouldnt call ls and ps not working in a corner case installation something to put on the main idexs page of the LTSP documentation, ifg you filed a but thats surely enough
also your upstart bug is filed against the upstart project, it should be against the ubuntu package instead
unless you are 100% sure its actually an upstart upstream bug indeed (which i doubt, ubuntu adds a bunch of patches)
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Ok, so how should I know who is responsible for what bugs.
if you see a bug in ubuntu you should always first file it against the ubuntu package
sometimes that's like solving a mystery
the package maintainer should then decide if its an upstream thing
What package is responsible for the upstart job to clear /tmp on boot?
dpkg -S <name of teh file you found teh bug in>
that will spit out the packagename you need to file the bug against
ok, I will try that.
best is to use "ubuntu-bug -p <packagename>"
that will collect all logs etc the dev needs
It gave me back mountall: /etc/init/mounted-tmp.conf does that mean I file the bug agains mountall?
ubuntu-bug -p mountall
Your the man ogra.
Warning: The options -p/-P are deprecated, please do not use them. See /usr/bin/ubuntu-bug --help
and close the upstart one as invalid (with a pointer to the mountall bug)
ah, my info is outdated :)
I had already thought of that.
Memory is good tho.
though for me it still lists -p in --help
So I just hit send the report?
Ah, I see now webpage loading.
right, it dumps you into launchpad and attaches logs and other info
Too bad I have no idea what file to specify for the ltsp bug.
just file it generic
on the command line?
same way you used for mountall
or on the web, as you like ... as long as it ends up in launchpad somehow all is fine :)
ogra and how can i ask a question and be answered by a dev ?
i have a problem with ltsp-update-image and i'm not sure a some parts in it
just ask your question and see if someone answers :)
there are 58 ppl in this channel
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He is really idling !
ok here is my question
i can post to ltsp-discuss too
continue reading please
I thought it merged
or maybe that was just a discussion
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at the end of ltsp-update-image
there is a check if RUN_LUK is set
if "yes" it runs ltsp-update-kernels
but RUN_LUK is never set
I should do a new ltsp install
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Appiah, where can I see this discussion ?
err dunno , some #ltsp logs perhaps
or the mailinglist
I could be mistaken
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ok i'll post in ltsp-discuss too
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I'm using LTSP from Ubuntu 10.04
and when I try to boot a thin client, after receive data from tftp I receive a message
Failed to connect to NBD server
any ideas ?
I need to say that it was working great in my tests, and now I'm trying to test in our client structure
but I'm using DHCP in a different server
anybody can help me with that ?
does it just stop there?
and if you switch to the "default" dhcp everything just works?
it was working in my test enviroment
ps uaxw|grep inetd
you should see inetd process
inetd is running
grep nbd /etc/inetd.conf
two lines are there
and it is listen in port 2000
I test that
here too ?
append ro initrd=initrd.img quiet splash nbdport=2000
just a moment
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it is ther
do you have a firewall running ?
hmmm, I'll look for that
in the client, do you get a prompt ?
busybox prompt i guess
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FIREWALL !!! :-/
I'm stupid :-)
It was working in my environment cause I had a rule that permit INPUT from all my network
when I changed the network it stopped :-D
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ogra, I have one more bug report to file. Maybe you can tell me who to file it against. This whole thing started when I instead of hitting shutdown, logged into the server, I hit log out. I then realized that I wanted to shutdown and at the login screen clicked shut down and it did. If I did the same thing when I was logged in it would tell me that system security policy prevent shutting down when other users are logged in.
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So, who do I file the bug against for that?
Is it the login package or system security package?
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frederickjh, you describe those login/outs on the server gdm right ?
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Yes, on the server with a nomal Ubuntu install with LTSP
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ok, I found someone else had filed a bug on it but only for more that one user logged into one machine. Low priority. Marked it that it affects ltsp as well and made a case for higher priority.
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hi @ all :)
how is a good way to enable ssh for connections to the thinclient? i want login with ssh to client session.
chroot /opt/ltsp/i386/ apt-get install openssh-server ?
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abeehc: "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
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hi there, i have just installed ltsp via debian lenny apt, when I installed I had xfce4 installed as my window manager, now i have installed kde, and want to be able to select kde when logging in via ltsp, local logon is using kde, but ltsp is only giving me xfce4 as a windowing system :( what do i have to change to allow ltsp to use other front ends like kde/gnome ?
marl_scot: it either cached your configuration in ~/.dmrc, or the default is set to xfce4 in /etc/alternatives/x-session-manager
though if it's straight debian lenny, it probably doesn't support session selection at login time
so it wouldn't support ~/.dmrc
/home/user/.dmrc -> Session=kde
not sure what to do with x-session-manager, is this a programo run?
if i try and run x-session-manager from my local login, i get 'xfce4-session: Another session manager is already running' so i take it it has cached xfce4, how do i change this?
with the older version of ldm that lenny supports, you can only set the session globally.
(i am logged in as well via ltsp)
or through a users ~/.xsession file
that would be fine :) how do i do that?
update-alternatives --config x-session-manager
glad to be of help
Ive been hitting my head against google for hours trying to figure that one out, i had never heard of alternatives beofer :(
it's the standard debian way to set defaults for certain types of programs.
lol, well learn something new every day :) thnks again :)
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