I'm not sure how or why, but during the upgrade, /dev/null got chmod'ed to 644. Setting it back to 666 let it work correctly.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2067783 Title: package pcp 6.2.0-1.1build4 failed to install/upgrade: installed pcp package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcp/+bug/2067783/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs