Based on other bugs I've seen related to that in precise and quantal, can you confirm that you can restart isc-dhcp-server without an error message in dmesg?
For precise/quantal, just having write permissions to the pid file wasn't enough as on restart, isc-dhcp-server tries to read the previous pid file and fails. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/974054 Title: dhcpd attempts to use /var/run/dhcpd.pid, AppArmor errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/974054/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs