Just experienced the same problem after a 11.10 -> 12.04 update. The 11.10 install was also kubuntu, but don't think it matters.
Disk partitioned as: (parted) p Model: ATA HITACHI HTS72323 (scsi) Disk /dev/sda: 320GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 256MB 255MB primary ext2 2 257MB 320GB 320GB extended 5 257MB 320GB 320GB logical with 5 being a LUKS encrypted LVM setup: root@ubuntu:/# lvdisplay --- Logical volume --- LV Name /dev/cox/root VG Name cox LV UUID VRCA0x-HQKI-poSW-2i3E-ECBa-HpR7-xiSREw LV Write Access read/write LV Status available # open 0 LV Size 292.49 GiB Current LE 74878 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:1 --- Logical volume --- LV Name /dev/cox/swap_1 VG Name cox LV UUID tRQYQV-Vz8s-gZAF-3M4V-fHtF-aeml-fZhMcj LV Write Access read/write LV Status NOT available LV Size 5.34 GiB Current LE 1368 Segments 1 Allocation inherit Read ahead sectors auto I'll try the fix from #1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/997414 Title: Kubuntu 11.10 with encrypted root upgraded to 12.04 result in unbootable system due to Grub limitations To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/997414/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
