package isc-dhcp-server 4.1.ESV-R4-0ubuntu5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Jake Roberts]

I'm just trying to install the package from the repos. I was following the guide for setting up a PXE Install Server.
https://help.ubuntu.com/community/PXEInstallServer

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: isc-dhcp-server 4.1.ESV-R4-0ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu7
AptOrdering:
 isc-dhcp-server: Install
 dhcp3-server: Install
 isc-dhcp-server: Configure
 dhcp3-server: Configure
Architecture: amd64
DHCPServerConf:
 subnet 192.168.1.1 netmask 255.255.255.0 {
     <other config here>
     filename "pxelinux.0";
     next-server <pxe host>;
Date: Wed May 16 19:03:07 2012
DhServerLeases:

DuplicateSignature:
 Setting up isc-dhcp-server (4.1.ESV-R4-0ubuntu5) ...
 start: Job failed to start
 invoke-rc.d: initscript isc-dhcp-server, action "start" failed.
 dpkg: error processing isc-dhcp-server (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcCmdline: BOOT_IMAGE=/vmlinuz-3.2.0-24-generic root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7
SourcePackage: isc-dhcp
Title: package isc-dhcp-server 4.1.ESV-R4-0ubuntu5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.dhcp.dhcpd.conf:
 subnet 192.168.1.1 netmask 255.255.255.0 {
     <other config here>
     filename "pxelinux.0";
     next-server <pxe host>;
mtime.conffile..etc.dhcp.dhcpd.conf: 2012-05-16T18:59:14.065554

[Stéphane Graber (stgraber)]

Please attach a tarball of /var/log/upstart/