On 25/11/2020 23:03, Neil Bothwick wrote:
On Wed, 25 Nov 2020 19:37:32 -0000 (UTC), Grant Edwards wrote:
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.
It's more like a partition definition, GRUB requires the boot
sector/MBR of a whole drive.
I'm asking about chainloading. Grub has already been loaded via MBR
and grub's partition (which can be a normal physical partition if
needed). Grub is now running and displaying its menu. Each of the menu
entries instructs grub to load the first sector of a specified
partition into RAM and execute it. That sector can contain grub, LILO,
windows boot manager, whatever. If grub understands LVM volumes, then
can it read that first sector from an LVM volume instead of a physical
partition?
I think the only way to find out is to try it, but my gut feeling about
this is not good. However, I'd be happy for my gut to be proved wrong.
Well, it should be able to do it with raid (you can partition an md-raid
volume), so maybe the same with LVM?
Cheers,
Wol
