umount $CHROOT_OUTPUT/proc 2>/dev/null || /bin/true
umount $CHROOT_OUTPUT/sys 2>/dev/null || /bin/true
[ -n "$MIRROR_DIRECTORY" ] && umount "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
# notice: 'fai dirinstall' does not seem to exit appropriate, so:
ERROR=''
umount $CHROOT_OUTPUT/proc 2>/dev/null || /bin/true
umount $CHROOT_OUTPUT/sys 2>/dev/null || /bin/true
[ -n "$MIRROR_DIRECTORY" ] && umount "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
# notice: 'fai dirinstall' does not seem to exit appropriate, so:
ERROR=''