1 files changed, 2 insertions, 2 deletions

diff --git a/scripts/runqemu-internal b/scripts/runqemu-internal
index 2db55660ce..bc2a3557a5 100755
--- a/scripts/runqemu-internal
+++ b/scripts/runqemu-internal
@@ -123,7 +123,7 @@ if [ "$SLIRP_ENABLED" = "yes" ]; then
     if [ "$KVM_ACTIVE" = "yes" ]; then
         QEMU_NETWORK_CMD=""
         DROOT="/dev/vda"
-        ROOTFS_OPTIONS="-drive file=$ROOTFS,if=virtio"
+        ROOTFS_OPTIONS="-drive file=$ROOTFS,if=virtio,format=raw"
     else
         QEMU_NETWORK_CMD=""
         DROOT="/dev/hda"
@@ -261,7 +261,7 @@ else
         if [ "$KVM_ACTIVE" = "yes" ]; then
             QEMU_NETWORK_CMD="-net nic,model=virtio $QEMU_TAP_CMD,vhost=on"
             DROOT="/dev/vda"
-            ROOTFS_OPTIONS="-drive file=$ROOTFS,if=virtio"
+            ROOTFS_OPTIONS="-drive file=$ROOTFS,if=virtio,format=raw"
         else
             QEMU_NETWORK_CMD="-net nic,vlan=0 $QEMU_TAP_CMD"
             DROOT="/dev/hda"