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- From: bill@kepler.ucsd.edu (Bill Reynolds)
- Newsgroups: comp.unix.bsd
- Subject: Re: Removing 386BSD from the hard disk (FAQ)
- Date: 22 Jul 92 13:33:05
- Organization: Institute for Nonlinear Science, UCSD
- Lines: 45
- Distribution: world
- Message-ID: <BILL.92Jul22133305@kepler.ucsd.edu>
- References: <1992Jul21.152225.2082@lgc.com>
- NNTP-Posting-Host: kepler.ucsd.edu
- In-reply-to: danson@lgc.com's message of Tue, 21 Jul 1992 15:22:25 GMT
-
-
-
- In article <1992Jul21.152225.2082@lgc.com> danson@lgc.com (Doug Anson) writes:
-
- Doug> After many hours rebuilding kernels, etc.. the time came
- Doug> for me to uninstall 386BSD so that I can continue with
- Doug> my work (arg!!). Anyway, I just tried reinstalling DOS.
- Doug> I was able to produce a DOS partition (386BSD occupied
- Doug> my entire disk), format it and install the dos system
- Doug> onto it. When I then tried to reboot the machine off of
- Doug> the hdisk (thus DOS), my system can no longer boot off
- Doug> of the hdisk! It simply resets again and again after
- Doug> trying....
-
- Doug> Could it be that the some part of the 386BSD boot strap
- Doug> on the hdisk is still there? When I fdisked the hdisk in
- Doug> DOS everthing seemed to work fine.
-
- This one is in the install notes, but it took me also about a day to
- finally find it (thanks to Dwight Cass). I nominate this for entry
- into the FAQ list.
-
- From INSTALL.NOTES in the BSD distribution:
-
- To erase 386BSD from the dedicated disk, simply refor-
- mat the system. Some versions of MS-DOS require the master
- boot record to be rewritten as well, using the MS-DOS "fdisk
- /mbr" command.
-
- Other versions of MS-DOS require that the boot record
- lose its validity before being rewritten by fdisk. This is
- accomplished by cat'ing a file to the "raw" partition 'd' of
- the drive, "cat /386bsd >/dev/rwd0d", and then reformatting
- under MS-DOS. If you are using an old version of MS-DOS,
- you can use this technique to delete the 386BSD partition as
- well. This technique usually works (not always, however). As
- such, we strongly recommend that you obtain the most up-to-
- date version of MS-DOS (5.0 or better) and save yourself the
- headache.
-
-
- --
- _______________________________________________________________________
- Bill Reynolds |
- bill@kepler.ucsd.edu |
-