Thanks. I may have got myself into more of a mess by proceeding with the upgrade after installing libgfortran4. That allowed it to proceed, but I still had mysterious broken packages afterwards, even after ppa- purge'ing ubuntu-toolchain-r/test. The eventual solution was to remove gcc-7-base, along with everything that depends on it (gcc etc), and then reinstall gcc etc.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1787720 Title: Release upgrade fails (16.04 to 18.04.1) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1787720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
