There are advantages to installing FreeDOS natively - it is faster.  On
the other hand, I don't think there are many advantages to giving
FreeDOS gigabytes of space.  DOS programs just don't need it.

So, I installed FreeDOS on an 8GB USB pendrive.  (I don't think that even
2GB is really needed.)

On the internet there are guides on doing this.  I think I found a way
that's simpler than all of them and requires no proprietary tools.

* Download the FreeDOS USB installer.
* Copy the img to a small (1GB) USB key.  I used "dd" for this but
  there are many options.
* Take another larger USB key and format it to FAT32.  You can use
  Windows or use mkfs.fat on Linux.
* Put a small file with a memorable name on this one.
* Setup your PC's BIOS to boot into DOS.
** Enable Legacy boot.
** Enable legacy option ROMs.
* Plug in both USB keys.
* Boot into the FreeDOS installer.
* Drop out of the installer and do FDISK /STATUS.
** This should show you that the larger USB key is present.
** This will give you a drive letter for the larger USB key.
* Change to that drive letter by typing D:, E:, or whatever.
* Check that the "small file with a memorable name" is there.
* Go back into the FreeDOS installer/package manager by typing FDIMPLES.
* Choose to install everything to the drive letter found earlier.
** Note that if you get the drive letter wrong you could wipe over your
   something you want to keep on another internal drive.
* Take out the first USB key (you can reformat it and reuse it).
* Reboot with the second USB key in place.

I expect that some people around here know that you can do this.  I'm
just archiving it for posterity so someone searching the web can find it.

BR,
Robert Thorpe


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