I have this same issue with Ubuntu Budgie 18.04 LTS, this worked so far, apt purge lvm2 then apt install lvm2. Now I can update and install.
Thanks this issue was extremely annoying. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1746582 Title: package lvm2 2.02.176-4.1ubuntu2 failed to install/upgrade: installed lvm2 package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1746582/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs