My issue was resolved by executing "pop-upgrade release upgrade" rather than "do-release-upgrade". Additionally, I had to uninstall the gnome- initial-setup package and install pop-desktop. This is not on a System76 machine, but a custom server (Skylake generation).
User error? Should "do-release-upgrade" have worked for PopOS? My steps that resolved this: 1. sudo apt purge gnome-initial-setup 2. sudo apt install pop-desktop 3. pop-upgrade release upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901812 Title: Error in do-release-upgrade, invalid start byte To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1901812/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs