tree 3a1286f0eb3623db53c4cb2c880eb5a1059ae1f0
parent c07d74efd282261c68d33d745d52a6703448c8fd
author Lorenz Brun <lorenz@monogon.tech> 1690814774 +0200
committer Lorenz Brun <lorenz@monogon.tech> 1691408230 +0000

m/n/c/update: implement kexec-based activation

As we've had some issues with EFI-based slot activation and enterprise
server firmware is extremely slow, this implements kexec-based
activation. This just kexecs into the freshly-installed slot instead of
rebooting. It still updates the BootOrder on successful boot to allow
cold-boots if the server crashes or loses power, but no longer uses the
NextBoot mechanism to boot into the new slot once (this is taken care of
by kexec).

Change-Id: I6092c47d988634ba39fb6bdd7fd7ccd41ceb02ef
Reviewed-on: https://review.monogon.dev/c/monogon/+/2021
Reviewed-by: Serge Bazanski <serge@monogon.tech>
Tested-by: Jenkins CI