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Updated the tool for virtual HDD image generation. It should behave better when Ubuntu tries to open the mounted image.

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This commit is contained in:
Ivan Davidov 2017-12-06 19:56:51 +02:00
parent 691a321ead
commit e01d0905d5
1 changed files with 13 additions and 2 deletions
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15
src/generate_hdd.sh
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@ -1,5 +1,7 @@
#!/bin/sh
set -e
# Create sparse file of 20MB which can be used by QEMU.
if [ "$1" = "-e" -o "$1" = "--empty" ] ; then
@ -35,7 +37,9 @@ elif [ "$1" = "-f" -o "$1" = "--folder" ] ; then
echo "This file is on external hard disk." > folder/minimal/rootfs/overlay.txt
echo "Created sample text file."
sync
umount folder
sync
rm -rf folder
echo "Unmounted hard disk image file."
@ -44,7 +48,6 @@ elif [ "$1" = "-f" -o "$1" = "--folder" ] ; then
# Find the original user. Note that this may not always be correct.
ORIG_USER=`who | awk '{print \$1}'`
chown $ORIG_USER hdd.img
echo "Applied original ownership to hard disk image file."
elif [ "$1" = "-s" -o "$1" = "--sparse" ] ; then
@ -64,6 +67,7 @@ elif [ "$1" = "-s" -o "$1" = "--sparse" ] ; then
mkfs.vfat $LOOP_DEVICE_HDD
echo "Hard disk image file has been formatted with FAT filesystem."
rm -rf sparse
mkdir sparse
mount hdd.img sparse
echo "Mounted hard disk image file to temporary folder."
@ -93,7 +97,9 @@ elif [ "$1" = "-s" -o "$1" = "--sparse" ] ; then
chown -R root:root ovl
echo "Applied root ownership to overlay content."
sync
umount ovl
sync
sleep 1
rm -rf ovl
echo "Unmounted overlay image file."
@ -102,7 +108,9 @@ elif [ "$1" = "-s" -o "$1" = "--sparse" ] ; then
sleep 1
echo "Overlay image file has been detached from loop device."
sync
umount sparse
sync
sleep 1
rm -rf sparse
echo "Unmounted hard disk image file."
@ -110,8 +118,11 @@ elif [ "$1" = "-s" -o "$1" = "--sparse" ] ; then
losetup -d $LOOP_DEVICE_HDD
sleep 1
echo "Hard disk image file has been detached from loop device."
# Find the original user. Note that this may not always be correct.
ORIG_USER=`who | awk '{print \$1}'`
chown $ORIG_USER hdd.img
chown $(logname) hdd.img
echo "Applied original ownership to hard disk image file."
elif [ "$1" = "-h" -o "$1" = "--help" ] ; then
cat << CEOF