Frankly speaking, I could not find the code that can creates the empty file, but here are the steps to reproduce:
1. Find interface that is not connected (to simplify tests), in my case it is eth0. 2. Run and interrupt the client: sudo dhclient eth0 [sudo] password for rtg: Internet Systems Consortium DHCP Client V3.0.5 Copyright 2004-2006 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ Listening on LPF/eth0/00:c0:9f:b1:0e:04 Sending on LPF/eth0/00:c0:9f:b1:0e:04 Sending on Socket/fallback DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8 3. Now rerun the client: sudo dhclient eth0 There is already a pid file /var/run/dhclient.pid with pid 134519120 Internet Systems Consortium DHCP Client V3.0.5 Copyright 2004-2006 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ 4. Look at pidfile: ll /var/run/dhclient.pid -rw-r--r-- 1 root root 0 2008-04-23 23:42 /var/run/dhclient.pid -- dhcp3-client warns about nonexisting pid https://bugs.launchpad.net/bugs/219929 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dhcp3 in ubuntu. -- 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
