Hi Michael,

> I found a site by George Potthast and unfortunately though I got his
> USB2 driver to work for a while, it stopped working.  Another concern,
> he wants an atrocious amount of money for a copy that doesn't stop
> working.  I'd much rather donate $600 to the freedos maintainers to
> advance the support of USB beyond 1.1.

You can imagine that writing USB drivers takes a lot of effort,
but you can try your luck with Bret Johnson's DOS USB drivers
and consider supporting him instead: https://bretjohnson.us/

You have various options: You said you copy the files of the
pre-installed Windows 2000 of the analyzer and run into the
free version time-out of Georg's drivers. You could simply
copy the files in multiple steps. The time-out is per session.

> I would like to use grub4dos or plop, but they don't work on the
> Agilent because of the nonstandard bios and nonstandard video card.

How nonstandard are they and how does the device boot PC DOS then?

Also, how about the obvious consideration to try Linux with the
disk image copy tools available there? It would probably solve
multiple problems which you now have to tackle one by one.

> I need to be able to trigger boot of Windows 2000 from an external 
> hard drive.  The copy of ghost doesn't seem to like USB hard drives

You mean ghost for DOS? Maybe the USB driver tested by you fails
to provide low-level interfaces expected by ghost for DOS. Do you
want to run a custom Windows software from the USB disk or do you
actually want to modify the Windows inside the analyzer and simply
use the USB disk as fallback because the modification did not work?

> How can I restore the factory ghost image to a USB hard drive???

If you ask me, just use Linux to clone the internal driver to the
external USB disk. It also has powerful boot loaders which could
help you to boot Windows from the USB disk.

> I started using xcopy to copy the internal C drive to an external
> partition, but George's driver shut down on me after about 20 
> minutes or so...

See above, you can spread the copy over multiples of 20 minutes.
But xcopy copies only the files. Windows 2000 needs more than
just the DOS style file contents to boot properly. You would at
least have to use a DOS or Windows tool to make the USB bootable,
unless you use a disk image tool instead of xcopy for everything.

> Another concern about freedos, how do I get long filename support
> as Windows 2000 is installed to a FAT32 partition?

There are drivers for that, but plenty of DOS software, possibly
including xcopy, will not actually care for the LFN, so your
mileage may vary. See for example the list on:

https://en.wikipedia.org/wiki/Long_filename#VFAT_LFN_drivers

Eric



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