how to make apt use update-initramfs instead if initramfs-kpkg?

[akos.maroy]

I wonder how one can make apt use update-initramfs instead of initramfs-kpkg?

I have built upstream kernel packages using the instructions here: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild but whenever I do an apt-get install, it tries and fails to execute initramfs-kpkg on my kernel packages. running mkinitramfs manually runs though just fine...

the man page for initramfs-kpkg mentions that update-initramfs is the current preferred methods. I looked at /etc/apt and /etc/initramfs-tools, but found no way to change what is actually being run.

I also see that initramfs-kpkg and update-initramfs come from the same package, so I can't just simply uninstall the unwanted one either.

any help would be appreciated...