I have the issue with last week's isc-dhcp-server, ubuntu 12.04 LTS.
That package uses /var/run/dhcpd.run and does NOT use the sub-directory /var/run/dhcp-server (as claimed by Jamie Strandboge (jdstrand)).
The solution for me was to add a symbolic link (as root): ln -s /var/run/dhcp-server/dhcpd.pid /var/run/dhcpd.pid Now everything works fine!
I have the issue with last week's isc-dhcp-server, ubuntu 12.04 LTS.
That package uses /var/run/dhcpd.run and does NOT use the sub-directory /var/run/ dhcp-server (as claimed by Jamie Strandboge (jdstrand)).
The solution for me was to add a symbolic link (as root): dhcp-server/ dhcpd.pid /var/run/dhcpd.pid
ln -s /var/run/
Now everything works fine!