Unix disk images and archiving - test-drb@ccmp.vtda.org

26 Mar 2002

...
  Date:   Mon, 25 Mar 2002 08:00:26 -0400
 To: classiccmp(a)classiccmp.org
 From: Jeff Hellige &lt;jhellige(a)earthlink.net&gt;
 Subject: Unix disk images and archiving
 Sender: owner-classiccmp(a)classiccmp.org
 Reply-To: classiccmp(a)classiccmp.org

 	I've gotten my '040 Cube's optical drive functioning again and now I
 want to take the original distribution optical disks for various
 versions of NeXTstep and make bootable copies of them on more usable
 media, preferably for storage as disk images and as bootable volumes on
 another SCSI disk.  I was thinking of using another magneto-optical
 drive, such as my Pinnacle Micro Sierra 1.3GB.  I've got enough
 optical disks to do this and the drive is an external MO.  Is this
 doable?  The images will have to contend with up to 256MB of data and 
 must be fully writable to a new physical disk, including all boot 
 information.

 	My '040 Cube is running NeXTstep 3.3 with CAPer, so if I made
 images I could easily move them on to my main Mac for storage.  The
 distribution disks in question have NS 0.9, 1.0, 1.0a, 2.0, 2.1, and
 3.0, as well as a non-bootable disk of 3.2.  They've been verified as 
 readable and still containing the OS (on my '040 Cube after being 
 locked).  Due to the unknown quality of the OD in my '030 Cube I 
 really don't want to try and boot one on it and I'd like to get them 
 to another media before I lose the ability to
 read them altogether. 
As I recall from experience upgrading a Cube from a 68030 to a 68040
CPU board, NS 1.0a and earlier would not boot on the 68040.  They were
written without knowledge of the future differences between a 68040 and
a 68030, which are significant at the system stack level.  Just something
to think about.

This does not prevent user-level software from running, just system stuff.

    carl
-- 
        carl lowenstein   marine physical lab   u.c. san diego
                                          clowenstein(a)ucsd.edu