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

[Dobbin]

I have successfully deployed Natty to 8 identical servers (using MSI
boards), using unencrypted LVM. However using the exact same preseed
config it has failed to deploy to a further 4 servers (using Intel
boards). All other aspects of the configurations are identical. So it
would appear to be some strange interaction with specific hardware.

For the servers that have failed to install correctly I've found that
switching back to LILO resolves the problem for me for the time being.
But we won't be rolling out to the rest of the estate.

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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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