cat > /tmp/fai/fstab <<EOF
$first_root_crypt / btrfs noatime,subvol=root_$DISTRO 0 0
$first_root_crypt /q btrfs noatime,subvol=q 0 0
cat > /tmp/fai/fstab <<EOF
$first_root_crypt / btrfs noatime,subvol=root_$DISTRO 0 0
$first_root_crypt /q btrfs noatime,subvol=q 0 0