#/bin/bash

#==============================================================================#
#
# /root/bin/umount_img.sh /var/lib/uvtool/libvirt/images/x-uvt-b64-Y29tLnVidW50dS5jbG91ZDpzZXJ2ZXI6MTYuMDQ6YW1kNjQgMjAxODA5PWE=_bionic.raw /mnt
#
#==============================================================================#

VERSION="v2018092100"


SKRIPTVERZ="$(dirname ${0})"
#. ${SKRIPTVERZ}/mount_img.cfg

# umount /mnt/
IMAGE_NAME="${1}"
MOUNT_POINT="${2}"

#------------------------------------------------------------------------------#
### Parameterüberprüfung

#if [ ! -d "${MOUNT_POINT}" ] ; then
#       echo "Der Mount-Point '${MOUNT_POINT}' wurde nicht gefunden..."
#       exit 1
#fi

BELEGT="$(df -h ${MOUNT_POINT} | tail -n1 | awk '{print $1}' | fgrep loop)"
if [ "x${BELEGT}" = "x" ] ; then
        echo "Der Mount-Point '${MOUNT_POINT}' ist nicht in Nutzung..."
        exit 1
fi

#------------------------------------------------------------------------------#
### umount

umount /${MOUNT_POINT}/dev/pts/
umount /${MOUNT_POINT}/dev/
umount /${MOUNT_POINT}/sys/
umount /${MOUNT_POINT}/proc/
umount /${MOUNT_POINT}/

LO_DEV="$(losetup -a | fgrep "${IMAGE_NAME}" | awk -F':' '{print $1}')"
losetup -d ${LO_DEV}
ls -lha ${LO_DEV}*