--- /dev/null
+$ ./rpmqa.sh RHEL53PV32.img /dev/VolGroup00/LogVol00 > /tmp/rpms
+$ ls -l /tmp/rpms
+-rw-rw-r--. 1 rjones rjones 17324 2009-04-26 06:47 /tmp/rpms
+$ head /tmp/rpms
+add "RHEL53PV32.img"
+run
+mount-ro "/dev/VolGroup00/LogVol00" /
+command "rpm -qa"
+tzdata-2008i-1.el5
+nash-5.1.19.6-44
+gnome-mime-data-2.4.2-3.1
+dump-0.4b41-2.fc6
+emacs-leim-21.4-20.el5
+rootfiles-8.1-1.1.1
--- /dev/null
+<p>
+The command lists the RPMs installed inside a Fedora / RHEL / CentOS
+or other RPM-based virtual machine. It does this by running the
+<code>rpm -qa</code> command directly inside the machine.
+</p>
+
+<p>
+To use it you need to know the partition or LV <i>inside</i> the
+VM that contains the root filesystem, so for example:
+</p>
+
+<pre>
+rpmqa.sh guest.img /dev/VolGroup00/LogVol00 | less
+</pre>
+
+<p>
+You can write a similar command for Debian-based virtual machines
+very easily.
+</p>