In my opinion, this was a bug in the e1000e installation scripts. "man" intentionally doesn't support redirections inside its -P argument like this; implementing that without going via a shell (which is a practice that routinely leads to security bugs, so we avoid it) would add a reasonably significant amount of complexity, and it isn't worth it here because just redirecting the output of "man" to /dev/null would do just as well.
Furthermore, this installation script seems to have been written for a much older "man" implementation, because it appears to be deliberately trying to create a plain-text cat page, which is an obsolescent practice. Fortunately, it seems that the maintainers of the e1000e driver noticed this, because they fixed their scripts in version 3.6.0, released on 2019-09-22. As such, I think you should just be able to update to a newer version of the driver and this should work better. ** Changed in: man-db (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1790860 Title: ethernet driver update issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/man-db/+bug/1790860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs