This is pretty thoroughly weird. What's the output when you run these
two commands in sequence in a terminal window?
depmod -a 2.6.28-13-generic
echo $?
** Changed in: linux (Ubuntu)
Status: New = Incomplete
** Summary changed:
- package linux-image-2.6.28-13-generic 2.6.28-13.45
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/29754425/BootDmesg.txt
** Attachment added: CurrentDmesg.txt
http://launchpadlibrarian.net/29754427/CurrentDmesg.txt
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/29754428/Dependencies.txt
**