LTSP boots to log on but unable to authenticate.

[Asmo Koskinen]

Jim Christiansen kirjoitti:

> On the Ubuntu 9.04 or 9.10 (I just did an upgrade) ltsp sandbox though, the
> clients will boot to the log on screen then fail to authenticate a user.  It
> comes up with a "can't find server" error right on the log on screen, blanks
> out, then comes back to the log on screen.
> 
> Any ideas?

Well, there is just three commands to use in almost any case.

ltsp-update-kernels
ltsp-update-sshkeys
ltsp-update-image

If those commands does not help you, very brutal way is re-build chroot 
- if there is something very badly broken in chroot.

ltsp-build-client --arch i386

Maybe you need this one, because you upgrade whole distro. I usually do 
clean and fresh installation in almost every case (/home is somewhere 
away...).

I just installed Edubuntu DVD 9.10 in KVM virtual machine. Thin client 
is Asus Eee 701. I needed this one for Asus Eee, then it booted.

https://help.ubuntu.com/community/UbuntuLtspAsusEee

I have enabled root in chroot and dist-upgraded chroot, too. And 
installed mc, htop and ssh packages in chroot in testing purposes.

https://help.ubuntu.com/community/UbuntuLTSP/UnlockChrootRootAcct
https://help.ubuntu.com/community/UbuntuLTSP/UpdatingChroot

Thin client works very well to me.

Nov  2 22:19:01 edubuntu sshd[1595]: Accepted password for ltsp001 from 
192.168.1.201 port 51841 ssh2
Nov  2 22:19:01 edubuntu sshd[1595]: pam_unix(sshd:session): session 
opened for user ltsp001 by (uid=0)

And I can dive in chroot.

admin-edubuntu at edubuntu:~$ ssh root at 192.168.1.201
root at 192.168.1.201's password:
Linux ltsp201 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 
2009 i686

root at ltsp201:~#

root at ltsp201:~# ps ax | grep LTSP
  2780 pts/0    Ss+    0:04 ssh -Y -t -M -S 
/var/run/ldm_socket_2662_192.168.1.112 -o NumberOfPasswordPrompts=1 
ltsp001 at 192.168.1.112 echo LTSPROCKS; /bin/sh -
  3825 tty7     S      0:00 ssh -Y -t -S 
/var/run/ldm_socket_2662_192.168.1.112 -l ltsp001 192.168.1.112 
SKIP_CHECKS=yes LTSP_CLIENT=192.168.1.201 LTSP_CLIENT_HOSTNAME=ltsp201 
   PULSE_SERVER=tcp:192.168.1.201:4713 ESPEAKER=192.168.1.201:16001 
/etc/X11/Xsession default < /dev/null > /dev/null ; 
/usr/sbin/ltspfsmounter all cleanup
  3832 tty7     R      0:01 xatomwait LTSP_COMMAND
  4290 pts/1    R+     0:00 grep LTSP
root at ltsp201:~#

Please, we have very large collection of howtos - use them.

https://help.ubuntu.com/community/UbuntuLTSP

Best Regards Asmo Koskinen.