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Re: Adding cd9660 support to the i386/amd64 BIOS bootloader: msg#00037

Subject: Re: Adding cd9660 support to the i386/amd64 BIOS bootloader
Jason Thorpe wrote:


On Jun 21, 2005, at 10:10 AM, John Clark wrote:

Uh? The El Torito spec uses the ISO9660 format. BIOS's for i386 platforms have been using this
since 1995, or how do you think a PC boots off of a CD at all?


El Torito uses floppy / hard disk emulation. This is native CD booting that does not require a separate floppy or hard disk image to reside on the CD-ROM.


Ok, I did that for some 68K and PPC platforms and various OS's like RTMX (if anyone recalls...), OS/K, and a very ancient pre-NetBSD BSD port... but I guess I had not really seen a reason for doing such for i386 becase El Torito existed, and
worked, with the exception of having to create the floppy/disk image.

What are the benefits to the i386 users, other than removing the need to create the floppy/hard disk image?

John Clark




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