On one machine I have an encrypted LUKS container around an LVM on /dev/sda
that I can boot into. On the same machine is a second drive with an encrypted LUKS container around an LVM on /dev/sdb
(that GRUB from /dev/sda
doesn't see at the moment).
Ideally, I would like to have GRUB from /dev/sda
ask if I would like to load Ubuntu /dev/sda
or Ubuntu /dev/sdb
.
How can I update GRUB located on /dev/sda
so that it offers the two /boot
s (one on /dev/sda
and one on /dev/sdb
) as startup options?
sudo update-grub
does not add the/dev/sdb
option to the startup option list.- Boot-Repair also does not automatically do what I want.