Bipy, what's your system locale language.
I had similar problem, but after I changed system language to English,
installation went normally. Before that I had Estonian locale language.
I also did sudo su, as it was recommended in Ubuntu question #27500.
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package ltsp-client-core None
ths looks like you try to install ltsp-client-core directly ... its not
intended to and this is not a bug. it fails to install deliberately and should
have shown your a debconf message that it cant be installed on a normal system
(if that has not been shown please re-open)
ltsp-client-core
** Attachment added: DpkgTerminalLog.txt
http://launchpadlibrarian.net/17076435/DpkgTerminalLog.txt
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package ltsp-client-core None [modified:
/var/lib/dpkg/info/ltsp-client-core.list] failed to install/upgrade: subprocess
pre-installation script returned error exit status 1