[tomsrtbt] Dos install not working on big systems?

[Chops]

 
I tried a tomsrtbt install from dos the other day, and it didn't work.
>From the output, it looked like it got confused because by system had
too much memory (256k, I think) and decided there was no room for the
root file system.
 
Fixable?  (certainly it's not urgent for me.  There's a full linux on
that box somewhere and I expect the linux install will work fine.)
 
BillW