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Article #796

restore DOS 3.0 backups

#796
From: Andy Sun Anu-guest
Date: Fri, 29 Jun 1990 06:08
32 lines
1956 bytes
This is actually a cicrumstantial problem rather than a technical one.
Treat it as a mind boggler (probably a trival one for some) if you like.

A person has 10 360K 5.25" floppies containing backup files from DOS 3.0
backup command. The objective is to restore them to a hard disk. The types 
of computers that he has access to are:

(i) machine with one 1.44 Mb 3.5" floppy drive (drive A) 
                 one hard drive running DOS 3.30 (drive C)

(ii) machine with one 720K 3.5" floppy drive (drive A)
                  one 360K  5.25" floppy drive (drive B)
                  one hard disk running DOS 3.30 (drive C)

(iii) machine with one 1.2 MB 5.25" floppy drive (drive A)
                   one 360K 5.25" floppy drive (drive B)
                   no hard disk

Conditions: - All machines do NOT have the capability of booting from drive B.
            - Cannot swap drive cables due to difference in connector types.
            - You are allowed to use any software tools but they must exist
              in real life, not hypothetical ones.

Assume he has a bootable 5.25" 360K floppy of DOS 3.0 in hand, one 
spare 720K 3.5" floppy diskette and 12 360K 5.25" floppies, is it possible 
to restore those backup files (either to hard disk or to floppies)? And if 
yes, how? I know there has been discussions on this group awhile ago on 
booting from drive B. If such a beast in software does exist, machine (ii) 
alone can do the job of course. But does it really exist? And if not, how 
this problem can be solved?

Andy
Technical Details
Message-ID: <90Jun29.020813edt.20200@me.utoronto.ca>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!me!sun

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!me!sun
Newsgroups: comp.sys.ibm.pc.programmer
From: sun@me.utoronto.ca (Andy Sun Anu-guest)
Subject: restore DOS 3.0 backups
Message-ID: <90Jun29.020813edt.20200@me.utoronto.ca>
Reply-To: sun@hammer.me.UUCP (Andy Sun Anu-guest)
Organization: University of Toronto, Department of Mechanical Engineering
Date: 29 Jun 90 06:08:22 GMT