[syslinux] memdisk: DOS as a PreOS

[Christian Marg]

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Alexander Heinz wrote:
| Is it possible to load a virtual DOS Floppy with memdisk to do a few
|  things (e.g. scan for viruses, copy a hard disk image from the
| network to the local disk) and continue booting from the local hard
| disk without a reboot?

Depends. You can load DOS and boot any other OS after that _if_ you
don't use some special Memory tricks like EMM386 or perhaps HIMEM.sys.

DOS was used in conjunction with Loadlin in one workaround for the
Rocklinux project
http://www.zytor.com/pipermail/syslinux/2003-March/001698.html

Anyway: you surely can use the syslinux "Bootlocal"-code in a little Dos
.com-file to load the Master boot record to the special memory segment
(7c00?) and jumping to it...

You'll see if your OS still wants to boot after whatever you did in you
DOS session...

bye
Christian
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