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From: Aamir.Zakaria@samba.acs.unc.edu (BBS Account)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: DOS installation on non-empty hard-disk
Keywords: DOS, SYS
Message-ID: <1058@beguine.UUCP>
Date: 12 Sep 90 13:54:18 GMT
Sender: usenet@beguine.UUCP
Lines: 15

I was mucking around with my DOS system files last night (IBMBIO.COM and
IBMDOS.COM), trying to upgrade from 3.10 to 3.30.  I figured I could just
delete these files and then copy over the new ones.  (I used XTREE to
change the read-only attribute.)  Well, it didn't quite work right, and
now, I can't even get my old system files back on.  I get an error message,
'Insufficent disk space', or something like that.  My guess is I somehow overwrote the specific disk sectors where my BIOS expects to find DOS on bootup.

Does anyone know of a way for me to re-install DOS without having to backup my
whole hard-disk, re-format it, SYS it, and restore all the files?

Thanks!
-AZ


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