@nuentes Oh no, no. Your system is not destroyed beyond repair. It can be repaired. It's just that it is almost impossible or too much of a hustle for anyone to try to help you over forum. Someone has to sit in front of your machine to do it.
My only guess is that ChatGPT instructed you to make changes based on a CentOS system but XCP-ng and Xen virtualization in general is much different than regular CentOS. It has two stage boot process. First the Xen kernel boots and then a special virtual machine called Dom0 is booted. What you are accessing and reconfiguring is in fact this VM, not the underlying "system". So it's like a two layer system and some configuration must be done on Xen layer, some on Dom0 layer. I'm unfortunately unfamiliar with exact specifics on kernel and initrd image generation for this case so I can't spot where thing have gone wrong.
In short terms. Instead of going back and forth and trying a lot of different things, it's more time saving and simpler to reinstall the system and restore metadata if you already have a backup.
