Mistakenly added video controller to auto-booting vm. Now no video output for dm0

User Support
1

Hi,

I’ve made a stupid mistake. I added the video controller to a auto-booting vm. Now everytime I boot, the vm grabs the video output and I can’t see anything. Is there a way to disable the auto-boot option before booting?
Sorry for my stupidity, I’m complete new to qubes.

2

What is the qube that is autostarting?
You can boot in rescue mode by changing boot parameters in grub to
include systemd.unit=rescue.target - once you are logged in you can
change the allocation or delete the offending qube.

3

It’s a debian-10 vm I created. I run qubes 4.0.4.
How exactly and where do I have to change the parameters? I’m not familiar with this.

4
5

Thanks now I’m in rescue mode logged in as root. Where do I find the config file for the problematic vm to disable auto-boot?

6

sudo systemctl stop qubes-vm@<qube name>
sudo systemctl mask qubes-vm@<qube name>

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7

Thank you very much, that solved it.

1 Like