[syslinux] How to unload memdisk within DOS?
H. Peter Anvin
hpa at zytor.com
Thu Aug 29 00:25:32 PDT 2002
Bernd.von.Osten at bccomponents.com wrote:
> BWLOADHI has a "bwloadhi /u" option, which uses an additional int13h
> function to trigger the unload procedure. Maybe this can be implemented in
> Memdisk as well?
Something like that would work.
> At the moment I'm thinking about a quick and dirty test program (IMDL -
> IsMemDiskLoaded), which detects the presense on Memdisk in the workstations
> memory but looking for magic strings in Memory
> "MEMDISK " VERSION " " DATE;
> const char copyright =
> "Copyright " FIRSTYEAR "-" COPYYEAR " H. Peter Anvin";
Unfortunately doesn't work -- that's in the setup code, which is not
> Then I can react on that issue correctly in my batch file within dos and
> ignore the presence test of the bootmedia in the boot drive.
The easiest thing to do, if this is possible, is to put a well-known
volume label on the MEMDISK image and look for that. I don't know if
that's what you want to do, though.
More information about the Syslinux