Comment # 3 on bug 1223167 from James Carlson

I tried upgrading twice with the same results each time.

Before upgrading, I verified that all of my repos were reachable and ran
"zypper clean" and "zypper ref" to make sure.

I was able to get to a shell, and I poked around. The network layer didn't
correctly detect my static IP arrangement, but at least the DHCP system worked
and the system was connected to the Internet at the point where the error was
issued.

While doing the upgrade, I was following the instructions here:

https://en.opensuse.org/SDB:Offline_upgrade

The same error happened with and without attempting the "Prepare repository
list" step -- that is, with the repo links pointing to 15.4 or 15.5.