I have been struggling with apt-mark, my situation is that, I want to *not* update a certain package to the latest version, rather install the version of its sibling package.
For example: I have unity8 installed and I hold it with 'apt-mark hold unity8' since unity8 comes preinstalled on phones, when I try to install unity8-autopilot it tries to install the latest version(if available) from the archive and fails because it depends on unity8 itself.
What I am looking for is a way to hold any new package from the same source to not try to upgrade to the latest version, rather install the version of its sibling package. Probably I could do with pinning ?
Any pointers would helpful.