Thanks for your report.
The relevant error is
=
Γίνεται εγκατάσταση linux-image-2.6.31-16-generic (2.6.31-16.52) ...
Running depmod.
update-initramfs: Generating /boot/initrd.img-2.6.31-16-generic
Running postinst hook script /usr/sbin/update-grub.
Generating grub.cfg ...
grub-probe: error: o
** Attachment added: "AptOrdering.txt"
http://launchpadlibrarian.net/36595300/AptOrdering.txt
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/36595302/Dependencies.txt
** Attachment added: "Dmesg.txt"
http://launchpadlibrarian.net/36595303/Dmesg.txt
** Attachment