Subject: guix system init can't find file system by UUID, workaround results in broken boot

From: raingloom <[email-masked]>
Date: Thu, 21 May 2020 07:09:52 +0200

This can be closed, now that we have F2FS support.

Although maybe the error message could be better for file systems that
are not supported. Right now the use has no way to distinguish whether
`guix system` failed to find their device because they mistyped the
UUID or because it doesn't even support their file system of choice at
all.