Wolfgang, which version of Ubuntu are you using? At a fresh install of Ubuntu 12.04 LTS (without the transitional dhcp3-server package installed) the directory /var/run/dhcp3-server/ does not exist.
For you, instead of patching the isc-dhcp-server script, ln -s /var/run/dhcp3-server/dhcpd.pid /var/run/dhcpd.pid should have done the trick. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/776945 Title: Apparmor results in denying operation mknod for isc-dhcp-server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/776945/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs