[bug#38826] doc: Mention no LUKS2 for luks-device-mapping

[David Trudgian]

I spent a bit of time trying to mount some existing LUKS2 devices on
boot in a Guix system. They worked to open and mount manually in a
booted system, but not on boot with luks-device-mapping. Eventually
worked out LUKS2 is not supported by the code that inspects the
superblock directly for the (LUKS1) UUID.

A mention LUKS2 is not supported in the docs might be nice.

Cheers,

Dave Trudgian

0001-Mention-no-LUKS2-in-luks-device-mapping-doc.patch
Description: Text document