I can't be totally certain, but this looks as if perhaps /var is mounted noexec, which isn't a valid configuration. At any rate this does not appear to be a bug in man-db but some more general configuration problem with the system. Feel free to follow up with more details if this is still occurring (which I realise is unlikely after nearly two years; sorry!).
** Changed in: man-db (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1113295 Title: package man-db 2.6.1-2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 13 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/man-db/+bug/1113295/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs