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i have a weird problem. Client boots fine, but after entering username and password i can hear login sound but then in just gets back to login screen.
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but I can login with user that have admin rights
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can you login with the problem user on the real server ? (iow is it a problem with the user or with ltsp? )
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i have this problem http://ubuntuforums.org/archive/index.php/t-1474398.html , but those things does not help me to get users to login.
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found a solution https://bugs.launchpad.net/ltsp/+bug/622641
anyone what is the command in lts.conf to disable sound?
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hello people, how do i fix this error ltsp-client-core, it says cannot be installed on this machine
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And where/how are you trying to install ltsp-client-core? On the server or the chroot?
alkisg, i've notice that on the client side, it already receive its dynamic ip from the server, but it seems that tftpd doesnt work, seems like file not found
Erm, let's step back, so, the problem is installing ltsp-client-core or tftp?
alkisg, that problem came out when i tried to type ltsp-update-sshkeys, it seems its not installed
So you had a running ltsp installation so far?
And then you tried to type ltsp-update-sshkeys and a tftp problem happened?
alkisg, yes, i've done that already
So you had an ltsp installation that was working without ltsp-update-sshkeys? That doesn't sound possible
alkisg, yes, so i notice it seems that tftpd is not working, so installed it again, thats why i got that error ltsp-client-core cannot be installed on this machine, i dont know if i still needed that
mae_tae: well, the things you're saying do not make sense at all
tftpd doens't depend on ltsp-client-core
ltsp-client-core goes on the chroot, not on the server
alkisg, i just see on the client side that it has already that dhcp ip, and after that it seems it fails on tftp
and, you can't have ltsp-server without ltsp-update-sshkeys
So, let's do this with commands instead
alkisg, do i need to put fixed ip address on eth0?
Run this on the server: dpkg -l ltsp-server tftpd-hpa openbsd-inetd | grep ^ii
You (usually) need a fixed address on the nic that's facing the ltsp clients, yes
And usually it's on a completely different subnet (switch) that the other nic
But since you said you had it working before, this shouldn't be a problem, right?
What did the dpkg command return?
alkisg, sorry i can no longer test it, im now longer in the lab, ill try it tomorrow
Erm, it won't make any difference
It was just a command to tell us which versions you have installed
alkisg, what usually do i expect in the result?
You need to be on the lab to have good feedback
alkisg, in the client side, what usually the error if it tfpd is not installed or not properly configured?
what i just remembered is that it has already received that dhcp ip, and fails on that tfpd, seems file not found
something like that
alkisg, i remember its also edubuntu, its not ubuntu
Also there's no 9 version, it's either 9.04 or 9.10 :)
alkisg, heheh, does version matters?
Yes, that's why I asked
how do i restart ltsp
or i just run that dhcp3-server
alkisg, if assuming everything is fine, would it have the same windows like in the server?
mae_tae: read the docs for some details about how ltsp works
alkisg: "docs" :: For the most current documentation, see https://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_LtspDocumentationUpstream
When you're at the lab and have a specific problem to debug, feel free to ping me
thanks alkisg, maybe if encounter an error again tomorrow, ill just write and present it to you again, thanks for time
alkisg, last one, if ever if its connection time out, how do i fix it? what file will i modify? and lastly how do i restart ltsp?
A tftp problem can usually be either a dhcpd.conf problem, a wrongly wired networking problem, a /etc/inetd.conf problem, or a /etc/default/tftpd-hpa problem
There's no ltsp service to restart. It consists of several daemons (tftp, dhcp, nbd, ssh...) which you restart seperately. Read the docs.
i see, i read an article also now, do i need to install also NFS? aside from that openssh-server
You don't need to install anything other than ltsp-server-standalone, all dependencies are installed automatically. Again, docs. See also the web site docs: https://help.ubuntu.com/community/UbuntuLTSP/
yap, actually thats the one i followed that site
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Hi guys, i am trying now to make sound works in LTSP5 terminals using gentoo. The conf that the guide suggest, it enough? http://en.gentoo-wiki.com/wiki/LTSP
you could always try and find out? :)
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hello all, I'm having some kind of dchp problem. I can boot fine from the same switch as the server, but not from another switch. http://bit.ly/97JMcg seems to describe my problem, except I'm running a version it was supposed to be fixed in. any ideas?
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I was wondering if it is a good idea to use a existing ltsp server as a ltsp-cluster app server?
I guess I should say will the existing ltsp install cause problems?
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is there anyone who can give me a hand with ltsp booting in conjunction with cisco switches?
should just work right?
anyways.. this isn't a good time for support in this channel.. most people are away by this time of day
in fact, i was just passing time while my food is cooking
what's a better time, usually?
you should probably idle for awhile
winthrowe: just ask your questions, and people will respond when they can... try and stay online for as long as possible, really, so you might catch their replies...
there are people in all sorts of different timezones with different skillsets
0700 GMT - 1900 GMT or thereabouts
but yes vagrantc is right, be specific right off the back, nobody wants to spend time probing for questions
they are more likely to ignore it
when I boot a machine attached to the same switch as the server, everything is fine. when I try to boot a machine attached to another switch, the PXE dhcp is fine, but the linux portion just sends DHCPDISCOVER endlessly
winthrowe: distro / version?
Are you using the dhcp server on the ltsp server?
no, a preexisting debian box, I can grab versions if you'd like
Nah, there's a bug with cisco routers functioning as dhcp servers, I was asking about that
Can you try fixing the netmask bug? let me find it...
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alkisg: I can try pretty much anything, just let me know
Uh, no, never mind that
That's after it gets the dhcp addresss
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that's what I've been saying the last few days :)
One easy way to bypass this is to use ipappend 3, but I wonder why it won't work with 2 switches...
Does the debian dhcp server log say that it offers an address?
Or, if you could provide a tcpdump of the transaction...
where would you like it dumped from? I have a machine on a hub that I've been trying to use wireshark with, or I could go to the server
The debian server would be best
Wireshark would also do, if it's on a hub with the dhcp server
no, it's on a hub with a client, I'm out at the remote site, but I can ssh to the dhcp server
actually, I have my servers mixed up, the dhcp runs gentoo. is there a specific tcpdump command you'd like me to run?
The client side might also do (it's not necessarily the same as the server side, some switches might block some traffic)
Not sure about the command, maybe tcpdump -vv 'port 68 or port 69 ' ?
I can do both
ok, getting everything setup to cut down on any extrenuous packets
Those are the dhcp ports, so just don't reboot any other pcs at that time
easy to say, but the server serves a few hundred clients
Heh... but I think we'll see which one it is, the one that fails :D
Also, on another approach, after the tcpdump, try this: lucid is using udhcpc by default, not ipconfig. See if ipconfig works: put "break=mount" in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default, and on the busybox shell on the client, type: ipconfig eth0.
where would you like me to put them?
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.
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I notice my client capture has more packets the server: http://ltsp.pastebin.com/QABFxmeV
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winthrowe: while I'm trying to read the dumps, can you try the ipconfig thing?
working on it already
the break=mount goes on the append line, correct?
Yes, replace quiet splash with it
it's there, but it didn't seem to stop, but went right on to udhcpc
Do you have next-server=the ltsp server in your dhcpd.conf?
Pastebin your pxelinux.cfg/default...
...and then try this on your ltsp server: grep tftp /var/log/daemon.log | tail -n 20
Ah. Sorry, udhcpc runs on init-premount
Try break=init-premount, but I'm not sure if your keyboard will be working with that
well, hopefully, it's ps/2. I'll give a shot
(I can only imagine a udhcpc bug so far...)
(which would be moot to report it, as the package in lucid is 5 years old, I requested an update for maverick and they did it, so it's a completely different udhcpc now in maverick... :-/)
still didn't stop with init-premount
Try the grep command above
Is the tftp server actually used for pxelinux.0 etc?
|18:16||* alkisg hopes you're not using etherboot...|
I'm on a different timezone, but I don't see any new tries to load pxelinux.cfg/default, am I right?
yes, the pxelinux.0 is on the tftp server, which is the ltsp server, but not dhcp
I see one one line 15
The last pxelinux.cfg/default was downloaded about 20 minutes ago
Didn't you just boot the client a couple of minutes ago?
you're right, I didn't check the timestamp
Check if you have conflicting dhcp servers
how would I do that, besides seeing no dhcp security violations on the switches?
The client isn't an etherboot client (with etherboot burned into its rom), right?
...but still we'd be seeing nbi.img there, never mind
So, if the client boots, and you're not seeing a tftp entry there, then another tftp server is used
I don't think so, they're HP desktops using onboard PXE nic
*I mean if it loads a kernel, of course
and it does
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For a moment you should be seeing the server ip while the client boots (depending on the rom)
Check if that's the ltsp server or some other pc
Or, you could use gpxe, it has a "config" command which shows all the data received from the dhcp server for pxe
alkisg: "gpxe" :: the successor to etherboot (http://etherboot.org). To download bootable floppy, cd, usb, kernel etc images, visit http://rom-o-matic.net/
(boot from usb stick)
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the ip=... line that has client ip, ltsp ip, broadcast, netmask? those are all correct
Hmmm can you stop tftp on the ltsp server just for 2 minutes?
sudo stop tftpd-hpa
If the client boots then, we're sure it's using some other tftp server
I can, one moment.
I see TFTP.....
So, it's using the ltsp tftp server, but it's not logging the tftp request?! Wow...
Put verbose before starting it, moment..
Then, sudo start tftpd-hpa, and then reboot the client and check the daemon.log
|18:33||* alkisg wonders why break=init-premount doesn't work then :-/|
this should be everything relavant: http://pastebin.com/2nTygvDu
Looks good. And still break=init-premount did nothing?
correct, still nothing.
Can you change vmlinuz to vmlinuz-fake to pxelinux.cfg/default?
To verify that it doesn't find the kernel with that...
could not find image, and a boot: prompt
I'll try gpxe, but I need to go downstairs to get some media of some kind
OK, change of plans:
Let's try removing udhcpc, then ipconfig will be used. Do this:
Move /opt/ltsp/i386/usr/share/initramfs-tools/scripts/init-premount/udhcp to some backup location
Then, sudo chroot /opt/ltsp/i386 update-initramfs -u
Then, sudo ltsp-update-kernsl
And reboot the client. This will revert to using ipconfig
(of course also restore vmlinuz-fake to vmlinuz)
that seems to have done it.
@$(*&@#(* my bad. It should be break=premount
Is there a way to trigger clients to restart with an update image (if they are at the long screen)?
Anyway, it was probably a udhcpc bug. Is it booting now?
it is. I'd say definately a udhcpc bug
I noticed they automatically restart if there is a new image at the time of a log-out...
winthrowe: unfortunately, it's not worth filing a bug against it, as it was a 5 year old package in lucid, and it's updated now
alksig: is there any reason I should think this is a workaround instead of a fix, as far as ltsp as a whole is concerned?
winthrowe: well, if you ever update ltsp-client-core in the chroot, then the udhcp file will go there again, causing you the same problems
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So, you should at least use dpkg-divert for it
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Other than that, it's just the old (pre- 9.10) behavior. ipconfig doesn't renew its leases, but that rarely causes problems (dhcp servers usually ping to see if the ips are available before assigning them)
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Can I use ranges in the MAC blocks in lts.conf?
I've noticed that I need to "LIKE = NVIDIA" for quite a few machines, all of the macs start the same way 00:17:1D .. etc. I'm wondering if that's possible, it's just ugly, though no one's gonna smack me upside the head if I have a 20K lts.conf file.
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