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From: bhj@bhjat.UUCP (burt janz)
Newsgroups: comp.sys.ibm.pc,comp.sys.att
Subject: Re: cpio for DOS and 3b2?
Message-ID: <151@bhjat.UUCP>
Date: Sun, 4-Oct-87 11:02:29 EDT
Article-I.D.: bhjat.151
Posted: Sun Oct  4 11:02:29 1987
Date-Received: Wed, 7-Oct-87 06:17:19 EDT
References: <472@unirot.UUCP>
Organization: BHJ Associates, Nashua, NH
Lines: 26
Keywords: cpio,floppy
Summary: 3B2 floppies and Microport
Xref: mnetor comp.sys.ibm.pc:8652 comp.sys.att:1398

In article <472@unirot.UUCP>, samperi@unirot.UUCP (Dominick Samperi) writes:
> I just finished implementing a UNIX-compatible cpio for DOS on a PC, and
> I hoped to use it to transfer files via floppy disks between my AT
> (running System V UNIX) and AT&T 3B2's (also running System V UNIX). But
> I've since learned that the 3B2's do not format floppies in the same way
> that the PC does. Does anyone know how floppies are formatted on the 3B2?

Recently, I tried to read some 3b2 floppies on Microport SV/AT V2.2.2L on
my AT clone.  I was able to read the first track...

cpio -icvt6

meaning that they use the old "version 6" type of CPIO format.  However,
with both the 360k floppy and the 1.2mb floppy I got read errors when the
floppy stepped to the next track.

I get the feeling that it is more than a floppy format problem.  I think
that they must be using a non-standard 360k floppy drive.

Admittedly, I did NOT investigate further, since I felt that swapping drives
and spending over 3 hours just trying to read 3 floppies was not worth the
effort to get the data on the floppies.

Hope this helps.

Burt Janz