kvm: for creating lock when checking image disk with qemu-img

software/kvm/common.cfg

@@ -99,7 +99,7 @@ recipe = hexagonit.recipe.download
 ignore-existing = true
 url = ${:_profile_base_location_}/instance-kvm.cfg.jinja2
 mode = 644
-md5sum = c348188a6dcb15430bea0bad51c249fc
+md5sum = e59ea29533d7f989ec676e14b0f29839
 download-only = true
 on-update = true
 

software/kvm/instance-kvm.cfg.jinja2

@@ -218,7 +218,7 @@ input = inline:#!/bin/sh
   # Return code 0 is "OK"
   # Return code 3 is "found leaks, but image is OK"
   # http://git.qemu.org/?p=qemu.git;a=blob;f=qemu-img.c;h=4e9a7f5741c9cb863d978225829e68fefcae3947;hb=HEAD#l702
-  ${kvm-parameter-dict:qemu-img-path} check ${kvm-parameter-dict:disk-path}
+  ${kvm-parameter-dict:qemu-img-path} check -U ${kvm-parameter-dict:disk-path}
   RETURN_CODE=$?
   if [ $RETURN_CODE -eq 0 ] || [ $RETURN_CODE -eq 3 ]; then
     exit 0