You do not HAVE to use the SYSLINUX loader. I've been successful
using the El Torito standard (with 1.44 or 2.88 MByte) boot sectors
on CD's. The trick is getting a proper floppy disk image file.
I did it this way because I've also been fiddling with MS-DOS boot
CD's and haven't played with ISOLINUX for those yet.
These CD images can be created from the boot floppy image file using
mkisofs -b imagefile.img -c catalog ...
I got the 2.88MByte boot disk image I'm using from
www.fdos.org/bootdisks. I mounted the image file
(using a program called VFD on Windows XP), configured it
the way I wanted it, and then used it to build an ISO file for
a bootable CD.
I'm actually building these on Windows XP, but the basic process
is the same. You can put a CD-ROM driver in config.sys and
access the rest of the CD as a seperate drive letter. The
computer basically acts like it was booted from a floppy drive
and the floppy disk image ends up mapped as A:, not C:
(which is where the boot device is if you use the ISOLINUX boot
No special drivers are required at all...it's just like booting from a
floppy. You don't even need a CD-ROM driver unless you want to
access more than 2.88 MBytes! :-) You don't need eltorito.sys or
anything else that you would not need for booting from a floppy disk.
No ISOLINUX, no ISOLINUX.CFG...
Hope this helps.
> Michael schreef:
> > I have a CD ISO image I keep of useful free software programs for
> > Windows. I was wanting to use the spare space on the discs to make a
> > FreeDOS (and maybe Memtest) rescue disc. I've downloaded the FreedOS
> > CD ISO. Do I just copy this ISO to a directory and copy the files from
> > my other ISO into that directory? I'm working under Linux here. Is
> > there anything special I need to do when remaking the ISO in order to
> > make disc bootable into FreeDOS? Any tips would be appreciated. Thanks.
> Nothing difficult. However, FreeDOS cdrom *is* a bootable cdrom, and
> like Linux distributions, uses ISOLINUX bootloader for the installation
> You can use MKISOFS under Linux, and point to isolinux/isolinux.bin as
> layout is basically this:
> AUTORUN.INF (root of cd, optional)
> and then your other programs
> You'll first have to unpack the ISO (or mount it, then copy it to a
> writable directory) before adding your other programs and remastering.
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