[LinuxBIOS] Filo boot from CD-Rom syntax

Takeshi Sone ts1 at tsn.or.jp
Tue Jan 30 11:32:43 CET 2007

On Tue, Jan 30, 2007 at 12:40:26AM -0800, Russ Whitaker wrote:
> On Sun, 28 Jan 2007, roger wrote:
> >Can somebody please update the Filo README file (and/or the Linuxbios
> >Filo documentation) to including the following concerning CD-ROM device
> >file syntax?
> >
> >ie. CD-ROM device is to be specified as "hdc1" and not "hdc"!
> Personally I think that is a "bug" in FILO.

No, this is not a bug.

>    "hdx"   refers to the entire device "x"
>    "hdx1"  refers to the first primary partition of "x"
>    "hdx2"  refers to the second primary partition of "x"

"hdb" refers to the entire CD-ROM.
"hdb1" refers to the "boot disk image" in the CD-ROM.

"Boot disk image" is something like 1.44MB floppy disk image, as
specified in El Torito.

However, recent distributions don't use the disk image. They use 
the entire CD-ROM instead, thanks to isolinux.
So you can use "hdb" to boot them.

Sorry for the confusion.
My English was (is) bad, so the README should be re-written anyway
to clarify things.


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