I am having exactly the same problem trying to upgrade from 8.09 to 9.04. I have even tried purging nfs-common and nfs-kernel-server and then installing fresh ...
sudo dpkg --configure -a Setting up nfs-common (1:1.1.4-1ubuntu1) ... ucf: The Source directory is /usr/share/nfs-common/conffiles ucf: The State directory is /var/lib/ucf The hash file exists egrep [[:space:]]\/etc\/idmapd\.conf$ /var/lib/ucf/hashfile 3e94f238294cc61b047e7ae50115dffc /etc/idmapd.conf ucf: The Source directory is /usr/share/nfs-common/conffiles ucf: The State directory is /var/lib/ucf The hash file exists dpkg: error processing nfs-common (--configure): subprocess post-installation script returned error exit status 128 dpkg: dependency problems prevent configuration of nfs-kernel-server: nfs-kernel-server depends on nfs-common (>= 1:1.0.8-1); however: Package nfs-common is not configured yet. dpkg: error processing nfs-kernel-server (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: nfs-common nfs-kernel-server -- package nfs-common 1:1.1.4-1ubuntu1 failed to install/upgrade: subprocess post-installation script returned error exit status 1 https://bugs.launchpad.net/bugs/308537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs