+ for dev in ${devs[@]}; do
+ mkfs.ext4 -F ${dev}1
+ done
+ yes $(cat $luks_dir/traci) | \
+ cryptsetup luksOpen /dev/$crypt crypt_dev_$crypt || [[ $? == 141 ]]
+ sleep 1
+ mount -o subvolid=0 /dev/mapper/crypt_dev_$crypt /mnt
+ # systemd creates subvolumes we want to delete.
+ s=($(btrfs subvolume list --sort=-path /mnt |
+ sed -rn 's#^.*path\s*(root/\S+)\s*$#\1#p'))
+ for subvol in ${s[@]}; do btrfs subvolume delete /mnt/$subvol; done
+ btrfs subvolume set-default 0 /mnt
+ btrfs subvolume delete /mnt/root
+ btrfs subvolume create /mnt/root
+ btrfs subvolume set-default $(btrfs subvolume list /mnt | grep 'root$' | awk '{print $2}') /mnt
+ umount /mnt