Emulating Raspbian With Qemu in Arch linux

Question

I'm trying to emulate RaspbianOS on my Arch Linux host using qemu-system-arm. and I have run into some problems.

• The emulation works fine using the machine versatilepb but when invoking qemu-system-arm using -M raspi2, all I get is a black window.

  What is the problem ? can I make it run using raspi2 or even virt as the machine type?

• Second, I used a Raspbian Stretch and the custom kernel was a jessie which I picked from here. When I replace the jessie custom kernel a stretch one, I get a black window with the message guest has not initialized display yet.

  What is the role of the qemu-kernel and why does the qemu-stretch-kernel not work?

• Finallly, to work properly the image has to be mounted in order to add these lines to /etc/udev/rules.d/90-qemu.rules .

  KERNEL=="sda", SYMLINK+="mmcblk0" 
  KERNEL=="sda?", SYMLINK+="mmcblk0p%n"
  KERNEL=="sda2", SYMLINK+="root"
  

  what is their signification ? and why are they added ?

Here is the command that I ran succesfully:

qemu-system-arm -kernel kernel-qemu-4.4.26-jessie -cpu arm1176 -m 256 -M versatilepb \        
-no-reboot -drive format=raw,file=2018-10-09-raspbian-stretch-lite.img