On Wed, 5 Jan 2022 21:12:04 -0500
Robert Moskowitz wrote:
that sounds interesting, but don't you also need separate /
partitions
with all the release specific software?
Yep. My actual scheme has a tiny grub2 stand alone partition
which uses the "configfile" grub command to be able to boot
one or the other. I install by installing inside a KVM virtual
machine from the DVD image, then use guestmount and rsync to copy
the virtual image to the partion I want it in. Edit a few places
that refer to UUIDs and I can boot it in the new location. The
/ partition is setup with /boot under it, so the KVM install
is just to /, no other partitions created.
I have no idea if this scheme could work under EFI, bur it works
great with old DOS BIOS.