I guess you are right! testparm showed a malformed line in [global] client min protocol = SMB1
After uncommenting it or changing it to client min protocol = NT1 I wasn't able to reproduce the above error. I guess you can close this Bug - thanks for taking care! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1714435 Title: package samba 2:4.3.11+dfsg-0ubuntu0.16.04.10 failed to install/upgrade: Subprocess of installed post-install-Skript returned error 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1714435/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs