[Bug 972250] Re: regression from 4k_sectors.patch: "non-sector-aligned data is found in the core file"

[Warren Turkal]

I am running a sputnik laptop in a dual boot configuration with Ubuntu
12.04. I just updated my grub-pc to version 1.99-21ubuntu3.4 and am
getting the blocklists error. Selecting /dev/sda6 during the upgrade of
the package fails. I had to select that I was okay skipping the
installation of the bootloader to a drive to get out of the upgrade.
After the package upgrade was done, I ran "grub-install -f /dev/sda" and
got the warning about blocklists. I haven't been daring enough to
restart my laptop yet. This is a pretty scary error message. Should I be
afraid to restart my laptop?

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https://bugs.launchpad.net/bugs/972250

Title:
  regression from 4k_sectors.patch: "non-sector-aligned data is found in
  the core file"

Status in “grub2” package in Ubuntu:
  Fix Released

Bug description:
  On a system installed with 11.10 and upgraded to 12.04 last week,
  today grub fails to apt-get upgrade with this error in
  /var/log/apt/term.log:

  /usr/sbin/grub-setup: warn: This GPT partition label has no BIOS Boot Partition; embedding won't be possible!.
  /usr/sbin/grub-setup: warn: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
  /usr/sbin/grub-setup: error: non-sector-aligned data is found in the core file.

  The system has luks+lvm as installed by 11.10 alternative installation
  cd, and indeed seems to have GPT but no BIOS partition (system is
  running BIOS on Asus F1A75V-PRO motherboard).

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