rallen@(none):~$ sudo apt-get install auditd
sudo: unable to resolve host (none)
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  rpm2cpio libnss3 python-pycurl librpmio2 librpm2 rpm-common libsqlite0 python-urlgrabber python-sqlitecachec python-rpm python-sqlite libnspr4 rpm librpmbuild2 liblua5.1-0 python-support librpmsign0 python-libxml2
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libaudit0
Suggested packages:
  audispd-plugins
The following NEW packages will be installed:
  auditd libaudit0
0 upgraded, 2 newly installed, 0 to remove and 117 not upgraded.
Need to get 425 kB of archives.
After this operation, 1,160 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://mirror.rackspace.com/ubuntu/ precise/universe libaudit0 amd64 1.7.18-1ubuntu1 [67.5 kB]
Get:2 http://mirror.rackspace.com/ubuntu/ precise/universe auditd amd64 1.7.18-1ubuntu1 [357 kB]
Fetched 425 kB in 0s (2,986 kB/s)
Selecting previously unselected package libaudit0.
(Reading database ... 61147 files and directories currently installed.)
Unpacking libaudit0 (from .../libaudit0_1.7.18-1ubuntu1_amd64.deb) ...
Selecting previously unselected package auditd.
Unpacking auditd (from .../auditd_1.7.18-1ubuntu1_amd64.deb) ...
Processing triggers for man-db ...
Processing triggers for ureadahead ...
ureadahead will be reprofiled on next reboot
Setting up libaudit0 (1.7.18-1ubuntu1) ...
Setting up auditd (1.7.18-1ubuntu1) ...
Can't exec "md5sum": No such file or directory at /usr/share/perl/5.14/IPC/Open3.pm line 186, <STDIN> line 12.
open2: exec of md5sum failed at /usr/sbin/pam-auth-update line 396
dpkg: error processing auditd (--configure):
 subprocess installed post-installation script returned error exit status 2
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
Errors were encountered while processing:
 auditd
E: Sub-process /usr/bin/dpkg returned an error code (1)