I'm necessarily flying blind, but that Fedora patch looks like an excellent candidate: it would affect GRUB's detection of where it was booted from, which could cause it to fail to find its configuration file. I'd prefer to backport the commit that ended up upstream (r4795) rather than the one linked to above, but that's OK.
I'm necessarily flying blind, but that Fedora patch looks like an excellent candidate: it would affect GRUB's detection of where it was booted from, which could cause it to fail to find its configuration file. I'd prefer to backport the commit that ended up upstream (r4795) rather than the one linked to above, but that's OK.