[EMAIL PROTECTED] wrote:
>
> >From: [EMAIL PROTECTED] (Bill Davidsen)
>
> >[EMAIL PROTECTED] told us:
>
> >> Most OS seem to use no-emulation boot these days.
> >>
> >>
> >> In this case it does not work to look for a floppy image.
>
> > So where is this new standard to be found? The ElTorito standard says
> >1.2, 1.44 or 2.88MB floppy image, if there is no floppy image, I assume
> >there is a standard for something else, since the BIOS has to implement
> >it and every system can't reasonably be using it's own standard.
>
> I never saw a Eltorito standard that was limited to floppy images!
It may not be the standard, but the mkisofs man page states:
-b eltorito_boot_image
Specifies the path and filename of the boot image
to be used when making an "El Torito" bootable CD.
The pathname must be relative to the source path
specified to mkisofs. This option is required to
make an "El Torito" bootable CD. The boot image
must be exactly the size of either a 1.2, 1.44, or
a 2.88 meg floppy, and mkisofs will use this size
when creating the output iso9660 filesystem. It is
assumed that the first 512 byte sector should be
read from the boot image (it is essentially emulat
ing a normal floppy drive). This will work, for
example, if the boot image is a LILO based boot
floppy.
Is this simply a restriction of mkisofs?
>
> Eltorito supports floppies, hard disk images and generic images without
> any logical connection to DOS hard disks. THe latter is called
> no emulation boot. It is used by M$ and by Solaris.
>
> Jörg
>
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