I redid the test (install, upgrade) and simply asked to install nfs- kernel-server. It worked (?). See attachment.
** Attachment added: "nfs_upgrade.txt" https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/863741/+attachment/4035668/+files/nfs_upgrade.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to rpcbind in Ubuntu. https://bugs.launchpad.net/bugs/863741 Title: apt doesn't want to replace portmap with rpcbind on upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/863741/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs