Comment 23 for bug 647128

The workaround steps seem awfully familiar to those in Bug #403408. However, the root causes seem to be different because this is in 10.10, while the previous one was fixed in 10.04, and that this bug causes a kernel panic, and is not evidenced by a "disk not found" error.

Another odd behavior is that if the UUID is changed in the GRUB menu to something which does not exist, Ubuntu boots up just fine. It is only the correct UUID that causes the problems with the kernel panic. Additionally, I tried removing the "set root=(hd(0,2)) entry in hopes that maybe it's conflicting with the search line. However, this does not fix the problem, so the culprit appears to be the search line alone.