I just encountered the same problem. I did two things to work around
this:
% cd /etc
% bzr diff
=== modified file 'apparmor.d/usr.sbin.dhcpd'
--- apparmor.d/usr.sbin.dhcpd 2012-05-18 01:12:29 +0000
+++ apparmor.d/usr.sbin.dhcpd 2012-05-19 21:10:55 +0000
@@ -32,7 +32,7 @@
/var/lib/dhcp/dhcpd{,6}.leases* lrw,
/var/log/ r,
/var/log/** rw,
- /{,var/}run/{,dhcp-server/}dhcpd{,6}.pid w,
+ /{,var/}run/{,dhcp-server/}dhcpd{,6}.pid rw,
# LTSP. See:
# http://www.ltsp.org/~sbalneav/LTSPManual.html
=== modified file 'dhcp/dhcpd.conf'
--- dhcp/dhcpd.conf 2012-05-19 21:01:43 +0000
+++ dhcp/dhcpd.conf 2012-05-19 21:09:07 +0000
@@ -31,7 +31,7 @@
# have to hack syslog.conf to complete the redirection).
log-facility local7;
-pid-file-name "/var/run/dhcp-server/dhcpd.pid";
+pid-file-name "/run/dhcp-server/dhcpd.pid";
subnet xxx.xxx.xxx.0 netmask 255.255.255.0 {
option routers xxx.xxx.xxx.xxx;
I honestly don't know whether this is the *right* thing to do, but it
works for me (please let me know if I'm opening massive vulnerabilities
:).
I think there are possibly two bugs here. The first would be that the
default pid file for dhcpd puts it in a location that isn't writable.
The second is that even after relocating the pid file, the apparmor
setting doesn't allow for reading the pid file.
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https://bugs.launchpad.net/bugs/985417
Title:
dhcpd cannot write /var/run/dhcpd.pid
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