Replacing sources.list with the following fixed it deb http://us.archive.ubuntu.com/ubuntu/ bionic main universe restricted multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main universe restricted multiverse
deb http://security.ubuntu.com/ubuntu bionic-security main universe restricted multiverse deb-src http://security.ubuntu.com/ubuntu bionic-security main universe restricted multiverse deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main universe restricted multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates main universe restricted multiverse deb http://us.archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse deb-src http://us.archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1787712 Title: 16.04 to 18.04 do-release-upgrade fails with "Command terminated with exit status 1" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1787712/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
