Emmet pinged me on this bug as part of the SRU regression process.
After careful analysis, this bug doesn't seem to impact a large user base.
I run grub2 ubuntu6 on a GPT system myself, and I don't seem to be affected (but it ain't a MacBook, and these systems might be special). John Dong on IRC also tried reproducing, but couldn't. I suggested he backups his /var/cache/debconf before upgrading to the ubuntu6 update though.
I considered simply fixing the bug tonight, but it doesn't seem easy to reproduce on non-MacBook systems, and the code is subtle, so it seemed sensible to defer for 8 hours to get Colin to have a look.
I considered reverting the fix, but the bug addressed by the SRU seems much more severe than this one (breaking widely available Dell pre-installed 9.10 Ubuntu systems), so we seem to be better off with breaking a smaller number of MacBooks.
I will mail cjwatson to tell him about the bug and will ping him tomorrow morning about this regression.
Emmet pinged me on this bug as part of the SRU regression process.
After careful analysis, this bug doesn't seem to impact a large user base.
I run grub2 ubuntu6 on a GPT system myself, and I don't seem to be affected (but it ain't a MacBook, and these systems might be special). John Dong on IRC also tried reproducing, but couldn't. I suggested he backups his /var/cache/debconf before upgrading to the ubuntu6 update though.
I considered simply fixing the bug tonight, but it doesn't seem easy to reproduce on non-MacBook systems, and the code is subtle, so it seemed sensible to defer for 8 hours to get Colin to have a look.
I considered reverting the fix, but the bug addressed by the SRU seems much more severe than this one (breaking widely available Dell pre-installed 9.10 Ubuntu systems), so we seem to be better off with breaking a smaller number of MacBooks.
I will mail cjwatson to tell him about the bug and will ping him tomorrow morning about this regression.