Public bug reported: I have perfectly working Kubuntu 11.10 system. The machine is Dell Precision T5500 with the following disks /dev/sda 164 GB - dev/sda1 - primary - Windows XP /dev/sdb 1TB - /dev/sdb1 - primary - Windows 7 system partition - /dev/sdb2 - primary - WIndows 7 OS - /dev/sdb3 - primary - Kubuntu 11.10 /boot partition - /dev/sdb4 - extended partition - /dev/sdb5 - logical LUKS encryption partition mapped to / (root) - /dev/sdb6 - logical LUKS encrypted partition swap
After online upgrade to 12.04 which went without any issues I rebooted the system. I was presented with GRUB menu which correctly listed - Ubuntu 12.04 with latest 3.x server - Previous Kernel versions - Window 7 - Windows XP Regardless with option I choose I receive 3 errors - no such partition If I drop to Grub console and I try to do ls I receive error - no such partition When I reboot to Ubuntu or Kubuntu alternative CD and try to do rescue It correctly detects all my partitions, asks for passwords for /dev/sdb5 and /dev/sdb6 and unlocks them If I try to to grub reinstall I receive error it cannot reinstall it If I try to chroot to /dev/mapper/sdb5_crypt I get a working shell If I try to do grub-install I get error that is cannot find mapping for /dev/mapper/sdb5_crypt to GRUB DISK If I try to do grub-probe as suggested by grub-update I get error that it cannot find mapping for /dev/mapper/sdb5_crypt and to check my device.map file If I try to run grub-devicemap it maps only /dev/sda and /dev/sdb but not /dev/mapper/sdb5_crypt If I try to modify device.map file manually it doesn't work If I try to do update-grub I get reference that GRUB doesn't understand LUKS encrypted volumes and look at bug http://bugs.debian.org/491977. It also creates new grub.cfg file which has only entry for Windows XP and WIndows 7 but not to the current Linux installation I am actively using At the end I am unable to fix the system since grub doesn't allow me to update the boot sector to bootable system. I had to reinstall. I have also logged it as https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/997407 since it happened during upgrade but logging it also specifically against GRUB since it seems to be limitation of GRUB in 12.04 resulting in unbootable system ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: 11.10 12.04 cryptsetup dist-upgrade dm-raid encrypted encryption grub luks root upgrad -- 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
