Thank you for taking the time to report this bug and helping to make Ubuntu better. Also a huge thank you for already collecting the additional data.
>From the logs: WARNING: Ignoring invalid value 'share' for parameter 'security' error opening config file '/etc/samba/smb.conf' As you noted the share parameter appears to be keeping things from working. A quick search shows that share=security is deprecated. A quick search of the community forums found this page: https://ubuntuforums.org/showthread.php?t=1962617 which may help you. Since this appears to be a local configuration problem and not a bug in Ubuntu, I'm marking this bug as Incomplete. We'd be grateful if you would then provide a more complete description of the problem, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to New. If indeed this is a local configuration problem, you can find pointers to get help for this sort of problem here: http://www.ubuntu.com/support/community ** Changed in: samba (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1634119 Title: package samba 2:4.3.11+dfsg-0ubuntu0.16.04.1 failed to upgrade due to invalid value 'share' for parameter 'security' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1634119/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs