Boot loop when trying to install Xen

[julie-nga]

Hello,

I've tried to install drakvuf . I've downloaded the latest DRAKVUF builds (the .deb files for ubuntu-jammy) and launched them with sudo dpkg -i drakvuf-bundle-1.1-168dac3-ubuntu-jammy.deb and sudo dpkg -i xen-hypervisor-4.19.0-ubuntu-jammy-amd64.deb . This is the output I have for the second command :

[...]

It seems fine but when I do sudo reboot I have a boot loop : the screen switches between these two screens continuously and the VM never starts :

What could I do to solve this ?

(PS: I've also tried doing it on a Debian 11 VM instead of the Ubuntu 22.04 VM but I also had a boot loop so I'm really lost on what to do)

Setup (Nested virtualization)
Host OS: Windows 11
Host VM: Ubuntu 22.04.5 desktop
Virtualization of Host VM: with VMware Workstation
Drakvuf: Installation guide

[tklengyel]

If you attach a serial console to the VM you can probably see the Xen/dom0 boot log to determine what the issue is. My guess would be not enabling nested-VMX feature?

[julie-nga]

If you attach a serial console to the VM you can probably see the Xen/dom0 boot log to determine what the issue is. My guess would be not enabling nested-VMX feature?

Actually I’ve already enabled the nested-VMX feature on VMware Workstation. For attaching a serial console to the VM, I’m not too familiar with how to set that up, and I’m a bit concerned it might take more time than I can manage right now since I’m new to this.

What confuses me is that I was able to install and run DRAKVUF Sandbox without encountering a boot loop for Xen (on a Debian 11 host VM). I’m not sure why it’s behaving differently in this setup. Any thoughts on what else could be causing this?