After examining your DpkgTerminalLog.txt file it seems this is a duplicate of bug 193439 so I am marking it as such. Please continue to track this issue at that report.
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
expr: ickenumeriskt argument
User postinst hook script [/sbin/update-grub] exited with value 2
After examining your DpkgTerminalLog.txt file it seems this is a duplicate of bug 193439 so I am marking it as such. Please continue to track this issue at that report.
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
expr: ickenumeriskt argument
User postinst hook script [/sbin/update-grub] exited with value 2