Ubuntu upgrade from 10.04 to 11.10 and Grub
Before you update to 11.04 or more do:
sudo apt-get install grub-pc
But if you didn't update to grub-2 before going to 11.04/11.10 via a do-release-upgrade
Boot the 11.10 livecd, go to terminal and if you had a LVM drive and the boot parition is at /dev/sda5:
sudo mkdir /mnt/boot
sudo mount /dev/sda5 /mnt/boot
sudo grub-install --boot-directory=/mnt/boot /dev/sda
Reboot on next boot hold SHIFT key.
Choose first option, edit it and remove the vt.handoff=7. (or just hit ALT+F! when you see the cursor) Machine should boot fine.
If you remove grub DO NOT REBOOT until grub-pc is installed.
apt-get purge grub-common
apt-get install grub-pc
grub-install --recheck /dev/sdX
If the above doesn't work: https://help.ubuntu.com/community/Grub2#Purge_.26_Reinstall