Comment 2 for bug 620004

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that there was an error caused by a corrupted archive. Please execute the following commands, as it will clear your package cache, in a terminal ( Applications -> Accessories -> Terminal ) :

sudo apt-get clean
sudo apt-get update

Then try performing the update again. This will likely resolve your issue. If so please set the bug's status to Invalid. Thanks in advance!

The failure appears to have started at this point in the DpkgTerminalLog.txt :

Setting up grub-pc (1.98-1ubuntu7) ...
grub-probe: error: cannot find a device for / (is /dev mounted?).
grub-probe: error: cannot find a device for /boot (is /dev mounted?).
grub-probe: error: cannot find a device for /boot/grub (is /dev mounted?).
/usr/sbin/grub-probe: error: cannot find a device for /boot/grub (is /dev mounted?).
No path or device is specified.
Try `/usr/sbin/grub-probe --help' for more information.
Auto-detection of a filesystem module failed.
Please specify the module with the option `--modules' explicitly.

Setting up linux-image-2.6.32-24-generic (2.6.32-24.39) ...
Running depmod.
update-initramfs: Generating /boot/initrd.img-2.6.32-24-generic
gzip: /initrd.img.gz: No such file or directory
cp: cannot stat `/vmlinuz': No such file or directory
Failed to create initrd image.
dpkg: error processing linux-image-2.6.32-24-generic (--configure):
 subprocess installed post-installation script returned error exit status 2