Have a computer with two Ubuntu versions on it in separate partitions. For the fun of it, I installed WINXP Home in a thrird partition. I then deleted WINXP but now I don't get the GRUB boot menu. Is there a way to get the GRUB boot menu back without reinstalling one of the UBUNTU versions already on the hard drive?
Boot repair is one method, but the easiest method for me has always been:
to find which partition your ubuntu is installed in (This is the same partition that's shown from your working ubuntu,
and then restart your computer. You're all good to go.