This may or may not be related:

I have only been able to get 12.04 thin clients to log in when I set the Session to "Ubuntu 2D".

I force this by creating the file/var/lib/tftpboot/*ltsp*/i386/lts.conf with the contents:

[default]
    LDM_XSESSION="gnome-session --session=ubuntu-2d"

then I do:  sudo /usr/lib/lightdm/lightdm-set-defaults --session ubuntu-2d

Finally, I do these commands:

sudo ltsp-update-sshkeys
sudo ltsp-update-image
sudo ltsp-build-client --arch i386
sudo ltsp-update-image --arch i386
sudo service nbd-server restart

Restart the computer.

Then boot the thin client and log in.


Many of these steps may be unnecessary, but I am not certain which are required at any point.

-David Amormino

On 08/07/2012 07:38 AM, Muhammad Jaiteh wrote:

I'm running Edubuntu 12.04(64-bit)and trying to setup an LTSP server that boots 32-bit thin clients. I'm currently testing it before I set up a few more clients so all i have right now is my server and my client connected to a switch. I have gotten as far enough as getting my thinclient(Diskless Workstation Model: LTSP1220) to boot, but then it fails to log in to the server. My auth log gives me these messages:

Aug 7 09:54:50 Library-Server sshd[8496]: Connection closed by 192.168.0.21 [preauth]

Aug 7 09:54:50 Library-Server sshd[8498]: Connection closed by 192.168.0.21 [preauth]

Aug 7 09:55:26 Library-Server sshd[8500]: fatal: Read from socket failed: Connection reset by peer [preauth]

Aug 7 09:56:34 Library-Server sshd[8506]: Connection closed by 192.168.0.21 [preauth]



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------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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