Thanks for taking the time to submit this bug. According to the log file, the file /var/cache/debconf/config.dat was busy, presumably because another update was running in the background. Could you please try again and let us know if you still have this error?
** Changed in: dhcp3 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/786410 Title: package dhcp3-server 3.1.3-2ubuntu3.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs