KVM SR: stop export/import if previous step failed.

software/kvm/common.cfg

@@ -115,7 +115,7 @@ mode = 0644
 recipe = hexagonit.recipe.download
 url = ${:_profile_base_location_}/template/kvm-import.sh.in
 filename = kvm-import.sh.in
-md5sum = e03ed049cddd8d157228b09e1ebc071a
+md5sum = a731372420dc59c0b5ba7bc5f39a14ad
 download-only = true
 mode = 0755
 
@@ -130,7 +130,7 @@ mode = 0644
 recipe = hexagonit.recipe.download
 url = ${:_profile_base_location_}/template/kvm-export.sh.in
 filename = kvm-export.sh.in
-md5sum = 08cd8da2221f09095b14e35e6acd2a56
+md5sum = 3e878b3343c76f0d6950986fffcb6a8c
 download-only = true
 mode = 0755
 

software/kvm/template/kvm-export.sh.in

@@ -14,5 +14,5 @@ $QEMU_IMG snapshot -c $SNAPSHOT_NAME $DISK_PATH
 if [ -f $BACKUP_PATH ]; then
   rm $BACKUP_PATH
 fi
-$QEMU_IMG convert -f qcow2 -O qcow2 -s $SNAPSHOT_NAME $DISK_PATH $BACKUP_PATH
+$QEMU_IMG convert -f qcow2 -O qcow2 -s $SNAPSHOT_NAME $DISK_PATH $BACKUP_PATH && \
 $QEMU_IMG snapshot -d $SNAPSHOT_NAME $DISK_PATH

software/kvm/template/kvm-import.sh.in

@@ -3,5 +3,5 @@ DISK_PATH=${:disk-path}
 BACKUP_PATH=${:backup-disk-path}
 
 # TODO: Use rdiff
-rm $DISK_PATH
+rm $DISK_PATH && \
 cp $BACKUP_PATH $DISK_PATH