someone@selfhosted.xyz writes:

> Hi,
>
> I have several times over tried to install to a LUKS-partition with
> btrfs and failed but last time I almost had success. guix init command
> complained that the bios_grub flag wasn't set after many hours of
> compiling packages and therefore didn't install grub at first. I
> checked the partition with "cryptsetup luksUUID /dev/sda1" before
> rerunning guix init and it gives me the luksUUID so the partition
> seemed intact up to that point. However, after setting the bios_grub
> flag and rerunning guix init, the installation is successful but
> afterwards the cryptsetup luksUUID command says that the partition is
> not a valid luks device, so it seems like the GRUB installation part
> is what ruins the partition.

What is your partition layout? The "bios_grub" partition must be a
separate (typically tiny) partition with no other data on it.