Hi
I have found two ways to boot to CDs even when your computer has no BIOS support for CD booting:
1.) Bootable CD Loader v1.50Z: bcdl150z.zip (~26 Kb, 21.03.2004)
"A bootable floppy enabling:
Boot from a Bootable CD on computers that do not have the possibility to boot from CD
Boot of the CDs Microsoft Windows XP/2000/NT on computers that on the attempt of booting the CD the usual way give out the following error 'CDBOOT: Cannot boot from CD - Code: X'
Boot of CDs containing Bootable CD Wizard, Windows PE, BootScriptor, CD Shell, ISOLinux, diskem1x.bin, diskem2x.bin, EasyBoot on computers that do not support the boot mode "No emulation" (these computers can only boot from images of floppies or harddisks)
Boot of standard multiboot CDs created with the programs mkisofs, MkBootCD, BootISO on computers that do not support the EL Torito Specification (these computers usually boot to the first entry in the boot options list without displaying the menu)
Boot of standard multiboot CDs on computers that only display the boot options 1-9, enabling all options also >9 (some older AWARD BIOS) " (Thanks to reanimatolog)
http://bootcd.narod.ru/index_e.htm
http://bootcd.narod.ru/bcdl_e.htm
2.) Smart BootManager 3.6 release 4
"Booting from CD-ROM
Smart BootManager supports booting from almost all kinds of IDE ATAPI CD-ROM, including PCMCIA CD-ROMs. You can let BIOS boot from C: only and assign a password for it, then you can boot from CD-ROM with Smart BootManager easily, while other guy couldn't. If you have a Laptop computer with a special PCMCIA CD-ROM which BIOS does not support booting from, Smart BootManager can help you make it easy!"
http://btmgr.webframe.org/index.php3
(I found this program mentioned by Thomas Shemanske at
http://lists.debian.org/debian-user/.../msg00779.html)
Either of these should give you a way to boot that RedHat CD on the old computer. I've used the Bootable CD Loader to boot a FreeBSD CD on an old Micron P133 that didn't have BIOS CD booting support.
-Haudy Kazemi