/usr/share/ltsp/plugins/ltsp-build-client/Debian/035-create-fs-image is in ltsp-server 5.5.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | case "$MODE" in
commandline)
add_option "create-ext2-image" "`eval_gettext "create ext2 image for use with NBD"`" "advanced" "false"
add_option "create-fs-image" "`eval_gettext "create image for use with NBD of the specified filesystem"`" "advanced" "true"
;;
configure)
if [ -n "$option_create_ext2_image_value" ]; then
FS_IMAGE_TYPE=ext2
fi
if [ -n "$option_create_fs_image_value" ]; then
FS_IMAGE_TYPE="$option_create_fs_image_value"
fi
;;
before-install)
if [ -n "$FS_IMAGE_TYPE" ]; then
FS_IMAGE_SIZE=${FS_IMAGE_SIZE:-"2024"}
FS_IMAGE_FILE=${FS_IMAGE_FILE:-"$BASE/images/$CHROOT.img"}
# ensure needed directories exist
mkdir -p $ROOT
mkdir -p $BASE/images/
# create a sparse file
dd if=/dev/zero of=$FS_IMAGE_FILE.new bs=1024k count=0 seek=$FS_IMAGE_SIZE 2> /dev/null
if [ -z "$MKFS_OPTS" ]; then
case $FS_IMAGE_TYPE in
ext2|ext3|ext4) MKFS_OPTS="-q -F" ;;
esac
fi
mkfs.$FS_IMAGE_TYPE $MKFS_OPTS $FS_IMAGE_FILE.new
mount -o loop $FS_IMAGE_FILE.new $ROOT
fi
;;
finalization)
if [ -n "$FS_IMAGE_TYPE" ]; then
# add $ROOT to list of files to be unmounted. done in finalization
# phase so it is the last to be unmounted.
CHROOT_MOUNTED="$CHROOT_MOUNTED $ROOT"
if [ -f "$FS_IMAGE_FILE" ]; then
rm "$FS_IMAGE_FILE"
fi
if [ -f "$FS_IMAGE_FILE".new ]; then
mv "$FS_IMAGE_FILE".new "$FS_IMAGE_FILE"
fi
# Call ltsp-config to update the nbd-server configuration.
ltsp-config nbd-server
fi
;;
esac
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