/usr/share//foreman not writeable: problem, or non-issue?

[gvde]

If I understand correctly, you can ignore the warning.

Upgrading Foreman/Katello 2.4/4.0 to 2.5/4.1

What you are seeing are warnings and not errors. We have been discussing how to prevent users from seeing this and thinking there is an issue. The bottom line for you is, these do not indicate anything bad happened with the upgrade.