Mount root drive as rw

Author: gsingh93

Makefile

@@ -336,7 +336,7 @@ ifneq ($(INITRD),)
   QEMU_ARGS += -initrd $(INITRD)
 else
   QEMU_ARGS += -drive file=$(ROOTFS),if=virtio,format=$(ROOTFS_FORMAT)
-  QEMU_EXTRA_KERNEL_CMDLINE += root=/dev/vda
+  QEMU_EXTRA_KERNEL_CMDLINE += root=/dev/vda rw
 endif
 
 ifeq ($(GDB),1)