Very Computer

I have been testing system recovery procedures for Red Hat Linux 6.1 on
an Intel system. Page 65 of the "Reference Guide" for the distribution
states that "the boot disk created during installation of Red Hat Linux
6.1 may be used as part of a rescue disk set". Our current disaster
recovery arrangements do not provide for getting replacement Intel
systems identical to the current production systems. Given this, I would
like a rescue disk that will work on any Intel system. An installation
disk is presumably more portable than a boot disk customized to suit our
current hardware. My attempts to use an installation disk as a rescue
disk have failed. If I boot from the disk and type "rescue" at the
initial prompt, as the "Reference Guide" suggests, I get a message
telling me that the loader could not find a kernel image named "rescue".
If I type "linux rescue", as the screen displayed above the initial
prompt suggests, the boot process completes but puts me in the graphical
installer rather than prompting for the second diskette and starting a
shell. Has anyone gotten an installation boot disk to function as the
first member of a rescue disk set?