On Fri, 16 Apr 2021 22:23:39 +0100, Colin Watson wrote:
I have on my to-do list an item to add something to the Debian release
notes about this, since that's a way to reach less-engaged users who
won't read the GRUB manual or mailing lists. That will likely help to
some extent, although I can't say how much.
Did anything like this happen for the Debian Bullseye release? I found
many interesting things in the release notes, but nothing about GRUB.
Also, updating some existing systems created emails about breaking
changes in some packages to the root user (I believe it is
apt-listchanges which is doing this) but nothing about GRUB either.
(Those systems either used a large MBR gap or a simple setup with only
ext4 and no LVM etc).
I also "just for fun" took the official Debian Installer ISO
(debian-11.0.0-i386-netinst.iso) and used it to install Debian Bullseye
into a new volume on an aleady existing LVM volume group (that is on a
part_msdos style partition that still uses a small MBR gap). The
installer did not complain, and proceeded to the point where it wanted
to install GRUB, but then stopped with a fatal error while executing
"grub install /dev/sda". Did not even show me the real error message.
Seems that core.img was 33 KB large and could therefore not be embedded
into the small MBR gap. To be honest, I am not sure whether this was
still possible with the GRUB version included in Buster.