uninstallation of ceph worked. however, upgrading was difficult it required:
sudo aptitude -enter the package selector Mark all upgradeable then mark ceph for reinstallation due to it being held back - dependency problem) result: it forces the system to use only latest packages and install them overwriting existing files then after reboot. then: sudo apt remove ceph* -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754585 Title: Can't uninstall ceph-mon package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1754585/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs