[Bug 745960] Re: Cannot boot GRUB on Intel Mac after installing to LVM

[Hawkwing]

Having this issue now with 13.04 server install. I couldn't get the
desktop install to set up an encrypted lvm how I wanted so I thought I'd
do the server and install ubuntu-desktop. I have a 2tb hard disk with a
200mb /boot ext4 partition and a 2tb physical volume for encryption.
There's a 2tb volume group with a 2tb logic volume on top of the
encrypted partition as ext4 at /. When the install finished and it
restarted the bios couldn't find a boot device.

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

Title:
  Cannot boot GRUB on Intel Mac after installing to LVM

Status in Release Notes for Ubuntu:
  Invalid
Status in Release Notes for Ubuntu oneiric series:
  Invalid
Status in Release Notes for Ubuntu precise series:
  Invalid
Status in “grub2” package in Ubuntu:
  Fix Released
Status in “grub2” source package in Natty:
  Invalid
Status in “grub2” source package in Oneiric:
  Invalid
Status in “grub2” source package in Precise:
  Fix Released

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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