I recently had the bright idea to upgrade to Ubuntu 24.04 inside my Ubuntu VM that is running with VirtualBox 7.0.20 on Windows 10.

As you propably guessed: Its a catastrophy.

Not only is there problems with the vmwgfx driver that comes with newer kernels but also Xorg fallback mode is not working anymore. There was regular stack traces at boot that could be to some part fixed by enabling hpet mode.

It also shows regular boot delays or fully gets stuck related to systemd-resolved, oomd or timesyncd.

At this point I would like to show you possibilities to prevent these problems, but I got no advice more than the things mentioned above and disabling 3D acceleration in the settings + using the VMSVGA graphics mode.

I have also tried the VirtualBox 7.1 Beta 1, with no improvements.