[net.micro] IBM PC IX diskettes: reading on REAL UNIX

ret@erc3ba.UUCP (R.E.Tulloss) (04/29/86)

I have a large amount of material on diskettes written under PC IX
on an IBM PC XT.  I find that no UNIX system, so far, can read these
diskettes.  Does anyone have an existing package for reading PC IX
formatted diskettes on an AT&T UNIX PC or an AT&T PC6300 PLUS or
on any AT&T 3B2 computer?  Thanks for the help.

				Rod Tulloss
				ihnp4!erc3ba!ret

stevet@ihuxl.UUCP (Turpin) (05/02/86)

> 
> I have a large amount of material on diskettes written under PC IX
> on an IBM PC XT.  I find that no UNIX system, so far, can read these
> diskettes.  Does anyone have an existing package for reading PC IX
> formatted diskettes on an AT&T UNIX PC or an AT&T PC6300 PLUS or
> on any AT&T 3B2 computer?  Thanks for the help.
> 

You might try the dd command.  It is a UNIX command and is available on the
UNIX-PC.  The UNIX-PC can read regular MS-DOS diskettes, so it must have a
smart disk controller.  Also, I know that XENIX can transfer files and floppies
back and forth to MS-DOS.  Seems like PC IX should have this capability.  
If you can't read floppies, the best thing to do would be to transmit the 
info from one machine to the other.

hsc@mtuxo.UUCP (h.cohen) (05/02/86)

The poster does not say if the PC/IX floppies are mountable
files, cpio files, or tar files.  I assume they are 360Kbyte floppies.
UNIX on the PC6300 PLUS can read floppies with cpio and tar files
from XENIX, so I would expect that it could read them from PC/IX as well.
Since PC/IX is UNIX System III rather than XENIX, it is even possible
that the PLUS could read mountable files.
UNIX for the PLUS will be orderable from AT&T-IS within the next
3-4 days (I will post details then).  If the poster wants to send
me one of his/her PC/IX floppies and some more info, though, I will
try to read it.
Harvey S. Cohen, PC6300 PLUS UNIX product mgmt.
307 Middletown-Lincroft Rd.
Lincroft, NJ 07738

root@ucsfcca.UUCP (Computer Center) (05/03/86)

> 
> I have a large amount of material on diskettes written under PC IX
> on an IBM PC XT.  I find that no UNIX system, so far, can read these
> diskettes.  Does anyone have an existing package for reading PC IX
> formatted diskettes on an AT&T UNIX PC or an AT&T PC6300 PLUS or
> on any AT&T 3B2 computer?  Thanks for the help.
> 
> 				Rod Tulloss
> 				ihnp4!erc3ba!ret

I have been able to read PC XT format disks just fine on the
6300+ running system V. PC IX is of course a System III based
system and is as really Unix as anything you have.

If you wrote the disks with cpio be advised that AT&T changed
cpio to make it incompatible with earlier versions, not between
System III and System V but between the original System V release
and the current one. A lot of vendors got sandbagged by AT&T on 
this one.

Because of this mucking about with cpio I use a tar compatible
utility on PC IX (no, I can't provide anyone with copies).

Thos Sumner     (...ucbvax!ucsfcgl!ucsfcca.UCSF!thos)

root@ucsfcca.UUCP (05/04/86)

> > 
> > I have a large amount of material on diskettes written under PC IX
> > on an IBM PC XT.  I find that no UNIX system, so far, can read these
> > diskettes. 
> > 
> > 				Rod Tulloss
> > 				ihnp4!erc3ba!ret
> 
> I have been able to read PC XT format disks just fine on the
> 6300+ running system V. PC IX is of course a System III based
> system and is as really Unix as anything you have.
> 
> ------
My previous reply offered the suspicion that the problem was due to
cpio version differences such as plagued users of the 3B2 machines
between sussessive System V releases.

There is, however, no problem in going from PC/IX cpio diskettes
used the default options for archive format to the PC6300+ System V
(at level C4) but be sure to use the proper floppy access path.
I used /dev/rdsk/f0d9dt which I linked to /dev/floppy to make it
easy to keep track.

Thos Sumner     (...ucbvax!ucsfcgl!ucsfcca.UCSF!thos)

*** REPLACE THIS LINE WITH YOUR MESSAGE ***

davidsen@steinmetz.UUCP (Davidsen) (05/05/86)

Moving disk data between systems has worked for me using the PC/IX,
Xenix SysIII, and SCO Xenix SysV (2.0.6), as well as the IBM RT. In
addition, I have been able to move data from the att7300 to Xenix SysV
by writing cpio to "/dev/rfp020" and reding it on "/dev/rfd048ds8". I
know how to write a 7300 compatible disk with Xenix, but am preparing a
posting with details and will not try to do it here. Look for it in a
few days.

PS: the cpio file produced by *all* of these systems will work on
BSD4.2 and VAX SysV is transferred by uucp! Use the options:
	cpio -oBc
and
	cpio -iBcdml

for the physical drive writes.
-- 
	-bill davidsen

	seismo!rochester!steinmetz!--\
       /                               \
ihnp4!              unirot ------------->---> crdos1!davidsen
       \                               /
        chinet! ---------------------/        (davidsen@ge-crd.ARPA)

"Stupidity, like virtue, is its own reward"