Juraj,

Juraj Hlista 写道：
> mount LABEL=system-root /mnt
> mkdir /mnt/etc /mnt/boot
> mount LABEL=system-boot /mnt/boot

Guix System doesn't support a separate /boot partition.  See 
<http://issues.guix.gnu.org/48172>.

I'll leave this bug unmerged with that one until we're sure that's 
your only issue:

> I also tried to use unencrypted root partition (basically the 
> same as above, but without LUKS) and it works.

Also with separate /boot?  If so, maybe GRUB happens to look in 
the wrong right place (/ instead of /boot), or something else is 
going on.

Kind regards,

T G-R