Hello,

I've noticed that the last released system installer [1], when using the
guided install workflow, is using a LUKS1 encryption; since I would like
to install on a LUKS2 encrypted root filesystem I tried to "manually"
install following the instructions in the manual [2].

When using a LUKS2 encryption format [3], completing the installation
and rebooting, I get an error from Grub: it cannot find the encrypted
volume, it's trying to open the /unencrypted/ volume instead (via UUID),
child of the LUKS2 encrypted one.

If I just change the type of encryption to "luks1" in [3], the booting
of the installed machine works as expected.

Since I know that the LUKS2 support in Grub was not available when Guix
1.4 was released, I also tried to "guix pull && hash guix" /before/
installing with "guix system init /mnt/etc/config.scm /mnt", but the
error was the same.

I still have not tried to build an updated system installation image to
see if it is working.

Since the (stable) manual provides instructions on how to install Guix
System on a LUKS2 encrypted partition [4], I'd like to understand if I'm
doing something wrong or there is a bug, at least in the manual.

I'm attaching the script I'm using for the "manual" installation: if I
set "luks2" in the "cryptsetup luksFormat..." command /and/ uncomment
the "guix pull && hash guix" commands, the installation provides an
unbootable system.

Sorry for the "short story made long" but my script it's a proof of
concept to allow installing a Guix System starting from any (recent)
rescue system (tested only with a Guix install image and a systemd
rescue system, grml), that's why is so "long":