On Wed, Oct 12, 2011 at 16:51:05 -0700,
Adam Williamson <awilliam(a)redhat.com> wrote:
test in whatever setups you can. The intended behaviour is that if
you
yum update a system with grub installed from a repo with both packages
available, grub will be replaced with both grub-efi and grub2.
Post-update, grub should still be in the MBR so the system should still
boot, switching to grub2 in the MBR at present still requires manual
intervention. Together with the fix for
https://bugzilla.redhat.com/show_bug.cgi?id=737731 these updates should
cause preupgrades to work, but it's a bit hard to test, I think, as
you'd have to give preupgrade a custom repo containing those packages to
work from. I'm sure you can do that, but I don't know the process off
the top of my head. Otherwise it'll have to wait till they propagate out
to updates-testing.
I also tested removing and adding kernels after this update. Other than
some grubby messages that might be a bit scary to people, things worked
as expected. I just gave +0s since I didn't really test grub-efi or grub2,
just that the existing grub setup didn't get busted and would work
going forward.