Public bug reported: Hello
while running upgrade of ubuntu 16.04.7 LTS to 18.04.6 the following error occured: ************* Found initrd image: /boot/initrd.img-4.4.0-210-generic Found linux image: /boot/vmlinuz-4.4.0-116-generic Found initrd image: /boot/initrd.img-4.4.0-116-generic done Processing triggers for sgml-base (1.29) ... Processing triggers for resolvconf (1.79ubuntu10.18.04.3) ... Errors were encountered while processing: sane-utils Exception during pm.DoInstall(): E:Sub-process /usr/bin/dpkg returned an error code (1) Could not install the upgrades The upgrade has aborted. Your system could be in an unusable state. A recovery will run now (dpkg --configure -a). Please report this bug in a browser at http://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+filebug and attach the files in /var/log/dist-upgrade/ to the bug report. E:Sub-process /usr/bin/dpkg returned an error code (1) Setting up sane-utils (1.0.27-1~experimental3ubuntu2.4) ... gpasswd: group 'scanner' does not exist in /etc/group adduser: `/usr/bin/gpasswd -a saned scanner' returned error code 3. Exiting. dpkg: error processing package sane-utils (--configure): installed sane-utils package post-installation script subprocess returned error exit status 1 Errors were encountered while processing: sane-utils *************** *************** > lsb_release -rd Description: Ubuntu 18.04.6 LTS Release: 18.04 > apt-cache policy sane-utils sane-utils: Installed: 1.0.27-1~experimental3ubuntu2.4 Candidate: 1.0.27-1~experimental3ubuntu2.4 Version table: *** 1.0.27-1~experimental3ubuntu2.4 500 500 http://uk.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.0.27-1~experimental3ubuntu2.3 500 500 http://uk.archive.ubuntu.com/ubuntu bionic-security/main amd64 Packages 1.0.27-1~experimental3ubuntu2 500 500 http://uk.archive.ubuntu.com/ubuntu bionic/main amd64 Packages > grep -r scanner /etc/group* There is indeed no group scanner in /etc/group **************** What you expected to happen I would expect the upgrader to propose a choice i.e. continue and ignore sane-utils installation rather that just stopping the upgrade process. **************** What happened instead upgrader stopped and how to check installation status ? Should I restart ? unknown state. I am not quite sure why sane-utils ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Attachment added: "files in /var/log/dist-upgrade/" https://bugs.launchpad.net/bugs/1949976/+attachment/5538425/+files/dist_upgrade.tag.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1949976 Title: sane-utils error while upgrading from 16.04.7 LTS to 18.04.6 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1949976/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs