Re: Boot DOS from file

[Jochen Hoenicke]

On May 22, Dotlacil Jaroslav wrote:
> I would like to use grub for booting Linux, WindowsNT and DOS6.22. I
> have partitions for WindowsNT and Linux. I would like to boot DOS from
> image file (it was created by rawrite from diskette)and with commands
> chainloader, boot. It doesn't work. I don't know, how to create
> correct image boot file from boot diskette.
> Could you advise me? At least a source of information.

Grub can't boot image files.  It can read the boot sector from the
image file and boot it, but the boot sector won't see the image file
anymore.  To make this work, grub had to install a small bios disk
handler that would stay in memory after grub has exited and that maps
all accesses to floppy disks to this image files.

This is possible and netboot does such a trick, but grub doesn't have
this support.

  Jochen