[ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount -a 1>/dev/null 2>&1
[ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount /proc 1>/dev/null 2>&1
[ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount /proc 1>/dev/null 2>&1
[ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount -a 1>/dev/null 2>&1
[ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount /proc 1>/dev/null 2>&1
[ -x "$MNTPOINT"/bin/umount ] && chroot "$MNTPOINT" umount /proc 1>/dev/null 2>&1