[syslinux] MEMDISK El Torito Emulation

Bernd Blaauw bblaauw at home.nl
Fri Nov 20 10:37:07 PST 2009


Op 20-11-2009 18:59, Shao Miller schreef:
>
> An OS like DOS uses INT 13h for disk I/O, which is what MEMDISK hooks 
> and how it functions.  The OSs mentioned above do not use INT 13h in 
> this way.
>
> There is a driver for Windows called WinVBlock, but there isn't one 
> for Linux (yet.)

And DOS so far requires the closed-source "eltorito.sys" driver from 
http://www.nu2.nu/eltorito/
An atapi-driver named UIDE (with sourcecode) exists as well at 
http://johnson.tmfc.net/dos/driver.html , but author has no experience 
with eltorito booting whatsoever, which prevents adding this feature.

Any idea if the ReactOS CD or a (QEMU? Bochs?) emulated harddisk would 
work with Memdisk-ISO?

I've so far used the memdisk-iso from the boot-land forums, no idea if 
any precompiled new test version is available (including the 
syslinux.com DOS installer fix from last week or so).

To go offtopic: can the Syslinux binaries be compressed? UPX 
(upx.sf.net, executable files compressor) chokes on it at least.

Bernd




More information about the Syslinux mailing list