Merge branch 'master' of git.openslx.org:openslx-ng/systemd-init

1 files changed, 9 insertions, 5 deletions

diff --git a/builder/dnbd3-rootfs/hooks/prepare-root-partition.sh b/builder/dnbd3-rootfs/hooks/prepare-root-partition.sh
index b9355cc3..c527062a 100755
--- a/builder/dnbd3-rootfs/hooks/prepare-root-partition.sh
+++ b/builder/dnbd3-rootfs/hooks/prepare-root-partition.sh
@@ -36,21 +36,25 @@ if [[ $return_code != 0 ]]; then
     exit 1
 fi
 # endregion
+
 # region scan partitions
 read_only_device=""
-if ! qemu-img info --output json "$SLX_DNBD3_DEVICE" | grep '"format": "raw"'
+if utils.dependency_check qemu-img && ! qemu-img qemu-img info --output json \
+    "$SLX_DNBD3_DEVICE" | grep '"format": "raw"'
 then
     read_only_device="$(container-unpack-xmount $SLX_DNBD3_DEVICE)"
 else
-    # workaround to detect partitions on raw disks
-    # can be omited when the dnbd3 kernel module supports it (like the nbd
-    # kernel module with parameter 'max_part')
-    loop_device="$(losetup -f)"
+    # Workaround to detect partitions on raw disks can be omitted when the
+    # dnbd3 kernel module supports it (like the nbd kernel module with
+    # parameter "max_part").
+    loop_device="$(losetup --find)"
     losetup "$loop_device" "$SLX_DNBD3_DEVICE" --partscan
     read_only_device="$loop_device"
     touch $read_only_device
     udevadm settle
 fi
+# Fail fast if no device could be determined.
+[ -z "$read_only_device" ] && exit 1
 # endregion
 
 # region find read-only partition