On Sat, 28 Jun 2025 12:54:43 +0200 Chris Hofstaedtler <z...@debian.org> wrote: > Unfortunately making the chroot /dev readonly makes resulting VM > images unbootable. update-grub should put root=UUID=... into > grub.cfg (as before), but now puts root=/dev/mapper/loop..., which > cannot work for obvious reasons. >
Thanks a lot for looking at it and obviously, this is absolutely clear that root=/dev/mapper/loop.. cannot work. Maybe I should have mentioned, that I bootstraped with grub disable to a mounted image file with UKI images for a Secure Boot environment, which can run in VM and on real hardware. > Ideas welcome. > I'll have a closer look at this issue next week because I'm really interested in solving this issue due to the fact that I use grml-debootstrap a lot and maybe sometime in the future even with a grub loader. I'll inform you as soon as I have an idea. Wolf
