Comment 50 for bug 1925010

Please open a new bug for that pfaelzerchen, using ubuntu-bug shim on your home server, and provide appropriate logs as documented in

https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1928434

Also check if shim actually loaded grub, and if so, enable grub debug mode, set debug=all
- maybe your issue is related to https://github.com/lxc/lxd/issues/8770