title: Loading ROM bootloader in qemu
body: <p>I have a custom bootloader, I have the entry point of the bootloader, How do I specify this address to qemu?</p>
  
  <p>I also have this warning when I try to load the image with this line <code>qemu-system-mips  -pflash img_</code>:</p>
  
  <pre><code>WARNING: Image format was not specified for 'img_' and probing guessed raw.
           Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
           Specify the 'raw' format explicitly to remove the restrictions.
  </code></pre>
  
  <p>I tried <code>-pflash=img_,format=raw</code> but it didn't work.</p>
  
  <p>Thanks.</p>