I installed 10.04 clean on the PC. Not other operating system. It booted to Ubuntu fine after the install and all appeared to be working fine. Used the upgrade manager to install the upgrades to the basic system. I had not yet loaded in any non-ubuntu or medibuntu repositories so this was the first, basic upgrade.
After the upgrade, I can no longer boot to Ubuntu but boot to a grub prompt instead. I presume this is a recover prompt. How do I "recover" and continue booting to Ubuntu?