broken dependencies for xen on ubuntu 24.04

[Hadmut Danisch]

Hi,

wanted to install xen on a freshly setup 24.04 server:

apt-get install grub-xen

Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 shim-signed : Depends: grub-efi-amd64-signed (>= 1.191~) but it is not going to be installed or
                        grub-efi-arm64-signed (>= 1.191~) but it is not installable or
                        base-files (< 12.3) but 13ubuntu10 is to be installed
               Depends: grub-efi-amd64-signed (>= 1.187.2~) but it is not going to be installed or
                        grub-efi-arm64-signed (>= 1.187.2~) but it is not installable
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.