Probably solved. I have fixed the permissions and 2 updates have gone through without crashing out. I looks like the fix has worked, thank you. It remains a mystery how the permissions apparently spontaneously changed! I will confirm again after some more substantial updates have gone through.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797721 Title: package winbind 2:4.3.11+dfsg-0ubuntu0.16.04.17 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1797721/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs