[Bug 745960] Re: Cannot boot grub after installing to LVM

[mbudd]

I was able to solve my problem by reinstalling grub2 to the raid device.
Booting from a live cd in 10.10 shows the device partition as
...ARRAY01, while under 11.04 the same partition is ARRAY0p1.

Also, /etc/default/grub was missing after the upgrade, and it seemed an
old grub was installed.

This information was important when following the chroot instructions
here: http://ubuntuforums.org/showthread.php?t=1581099 After
reinstalling grub 2 I was able to boot, and clean up the incorrect
entries for the root and swap partitions in /etc/fstab.

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https://bugs.launchpad.net/bugs/745960

Title:
  Cannot boot grub after installing to LVM

Status in Release Notes for Ubuntu:
  New
Status in “grub2” package in Ubuntu:
  Confirmed
Status in “grub2” source package in Natty:
  Confirmed
Status in “grub2” source package in Oneiric:
  Confirmed

Bug description:
  Binary package hint: debian-installer

  TEST CASE:
  http://testcases.qa.ubuntu.com/Install/AlternateEncryptedLvm

  I'm using kubuntu-alternate-amd64+mac.iso from 2011-03-29.1 on a
  MacBookPro6.2

  The installation runs as expected. No errors are reported. After
  rebooting, grub does not load. It's not that grub does not load linux,
  but rather that the hardware never passes control to the grub menu. It
  stays at the grey mac boot screen, as if there were no operating
  systems. Holding 'Alt' during boot, which is the standard way to boot
  when only Linux is installed on the Mac, offers no partition to boot.

  Installing the same system in the same manner without an encrypted LVM
  works fine. I did not test installing an unencrypted LVM.

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