# sudo update-grub
Generating grub.cfg ...
cat: /boot/grub/video.lst: No such file or directory
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
Found linux image: /boot/vmlinuz-3.0.0-16-virtual
Found initrd image: /boot/initrd.img-3.0.0-16-virtual
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
Found linux image: /boot/vmlinuz-3.0.0-15-virtual
Found initrd image: /boot/initrd.img-3.0.0-15-virtual
Found linux image: /boot/vmlinuz-3.0.0-14-virtual
Found initrd image: /boot/initrd.img-3.0.0-14-virtual
Found linux image: /boot/vmlinuz-2.6.32-308-ec2
Found initrd image: /boot/initrd.img-2.6.32-308-ec2
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
/usr/sbin/grub-probe: warn: disk does not exist, so falling back to partition device /dev/sda1.
Found memtest86+ image: /boot/memtest86+.bin
done