I got this problem on upgrade to 10.10 and then again on 11.04. I was also concerned that when I booted from a usb stick then the stick was sda and my hard drive(I only have one...windows vista boot as well) was sdb so I didnt feel confident to do a grub install, so ended up creating a live dvd and did the install from that. Note that a grub install from 10.10 didnt work, had to do it from 11.04
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/496435 Title: upgrades of the grub-pc package can overwrite wrong MBR -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs