title: Bug for installing a specific Linux kernel on qemu
body: <p>I use qemu-nvm because I want to simulate a machine with a open-channel SSD.
  I tried the command &quot;qemu-system-x86_64 -hda openChanSSDtest1.img -cdrom ./ubuntu-16.04-desktop-amd64.iso -m 10G -boot d&quot; and it worked.</p>
  <p>However, when I tried &quot;qemu-system-x86_64 -hda openChanSSDtest2.img -cdrom ./ubuntu-16.04-desktop-amd64.iso -m 10G -boot d -append root=/dev/sda -initrd /boot/initrd.img-4.12.0-rc6 -kernel /home/baoning/Downloads/linux-4.12-rc6/arch/x86_64/boot/bzImage&quot;, the virtual qemu machine showed the following:
  <a href="https://i.stack.imgur.com/uQivz.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p>I also tried ls /dev/sda and there exists this device.</p>
  <p>Searched a lot but found no clue.</p>