d dev=$dev
subvol_dir=$(sed -rn "s,^\s*[^#]\S*\s+$d\s.*\bsubvol=([a-zA-A/]+).*,\1,p" /etc/fstab /etc/mtab|head -n1)
d subvol_dir=$subvol_dir
# note, we need $dev because $d might not be mounted, and we do this loop
# because the device in fstab for the rootfs can be different.
d dev=$dev
subvol_dir=$(sed -rn "s,^\s*[^#]\S*\s+$d\s.*\bsubvol=([a-zA-A/]+).*,\1,p" /etc/fstab /etc/mtab|head -n1)
d subvol_dir=$subvol_dir
# note, we need $dev because $d might not be mounted, and we do this loop
# because the device in fstab for the rootfs can be different.