On 2020-11-25, Neil Bothwick <n...@digimed.co.uk> wrote: > On Wed, 25 Nov 2020 15:20:04 -0000 (UTC), Grant Edwards wrote: > >> > "GRUB 2 can read files directly from LVM and RAID devices." >> >> That was certainly the behavior described [...] >> >> But that relys on the assumption that the distros all run compatible >> versions of Grub2. What I was wondering was whether normal >> chainloading would work (which wouldn't rely on that assumption). > > I would expect all versions of GRUB2 to use the same config syntax. > Changing the syntax between versions could mean an update rendering the > computer unbootable, which we would probably have heard about.
In some comments about the multiple-distro setups there were rather vague references to occasional syntax problems between different distro's versions of grub. I don't know if it was due a change that was introduced upstream when grub was updated or some sort of RedHat custom-feature-backporting-bastardization. > I'm not sure chainloading would work as that requires a drive > definition from which to load the boot sector. I thought that's what LVM provided was a drive definition. -- Grant
