run_qemu.sh: use virtio disk and network

make_mirror.sh

@@ -282,7 +282,7 @@ timeout 0
 
 label linux
 kernel /vmlinuz
-append initrd=/initrd.img root=/dev/sda1 rw console=ttyS0,115200
+append initrd=/initrd.img root=/dev/vda1 rw console=ttyS0,115200
 serial 0 115200
 END
 	cat << END > "$tmpdir/mmdebstrap.service"

run_qemu.sh

@@ -35,5 +35,6 @@ qemu-system-x86_64 \
 	-monitor unix:/tmp/monitor,server,nowait \
 	-serial unix:/tmp/ttyS0,server,nowait \
 	-serial unix:/tmp/ttyS1,server,nowait \
+	-net nic,model=virtio -net user \
 	-virtfs local,id=mmdebstrap,path="$(pwd)/shared",security_model=none,mount_tag=mmdebstrap \
-	-drive file="$tmpdir/debian-$DEFAULT_DIST-overlay.qcow",cache=unsafe,index=0
+	-drive file="$tmpdir/debian-$DEFAULT_DIST-overlay.qcow",cache=unsafe,index=0,if=virtio