scripts/run: create an empty raw disk image if not present

use autoformat with formatzero=true to format the disk

scripts/run

@@ -74,7 +74,9 @@ find . | cpio -H newc -o > ${INITRD_TEST}
 
 if [ ! -e ${HD} ]; then
     mkdir -p $(dirname ${HD})
-    gzip -dc ${HD_GZ} > ${HD}
+    if [ "$UNAME" == "Darwin" ]; then qemu-img create -f raw -o size=10G ${HD}
+    elif [ "$UNAME" == "Linux" ]; then gzip -dc ${HD_GZ} > ${HD};
+    fi
 fi
 
 mkdir -p $(dirname $USER_DATA)
@@ -92,7 +94,7 @@ else
     done
 fi
 
-KERNEL_ARGS="quiet rancher.password=rancher console=ttyS0 ${QEMU_APPEND}"
+KERNEL_ARGS="rancher.password=rancher console=ttyS0 ${QEMU_APPEND}"
 
 if [ "$UNAME" == "Darwin" ] && [ -x $(which xhyve) ]; then
 
@@ -109,8 +111,9 @@ if [ "$UNAME" == "Darwin" ] && [ -x $(which xhyve) ]; then
         -l com1,stdio \
         -s 2:0,virtio-net \
         -s 3,ahci-cd,${CLOUD_CONFIG_ISO} \
+        -s 4,virtio-blk,${HD} \
         -U a01fb25c-3a19-4759-a47a-2e353e51807d \
-        -f kexec,${KERNEL},${INITRD_TEST},"earlyprintk=serial elevator=noop ${KERNEL_ARGS}"
+        -f kexec,${KERNEL},${INITRD_TEST},"earlyprintk=serial elevator=noop rancher.state.formatzero=true rancher.state.autoformat=[/dev/sda,/dev/vda] ${KERNEL_ARGS}"
 
 elif [ "$UNAME" == "Linux" ] && [ -x $(which qemu-system-x86_64) ]; then
     exec qemu-system-x86_64 -serial stdio \