Comment 29 for bug 978464

Revision history for this message
Phillip Susi (psusi) wrote : Re: [Bug 978464] Re: Upgrade 10.04 to 12.04 Beta 2 failed, grub issue

On 5/7/2012 3:28 PM, Steve Langasek wrote:
> This has never been the case because we don't believe we have a reliable
> enough way to identify the correct device to write to.

It has been the case for some time now. We use debconf to store the
devices that need grub reinstalled on upgrade. You can run
dpkg-reconfigure grub-pc to update/correct the list.

> Regardless, this is not behavior that it's reasonable to change in an SRU.
> We need to fix the grub.cfg to be compatible with lucid grub.

If you upgrade to precise, you should no longer be running the precise
grub, not lucid grub. The grub ABI is not stable, so whenever a new
grub package is installed, the MBR/core image must also be updated or
breakage will happen when it tries to use the updated modules in
/boot/grub. The same rationale applies to the config file.