🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.sys.next.sysadmin
Article #1930

OD screwing up opticals

#1930
From: Daniel Shelton
Date: Sun, 22 Nov 1992 21:54
22 lines
1658 bytes
Hello All,

	We recently purchased a used 030 cube with a defective optical disk drive, we knew about the drive.  With the computer, we go 
 
t some opticals that had apparently been messed up by the drive, here is what I have been able to piece together:

1)	the disks that were put into the system have had all their labels erased, and some sectors have been written incorrectly

2)	I think that the problem was in the ECC circuitry, this is a guess.

What I want to do is to be able to recoup the data from the damaged disks without any loss.  This is probably impossible if it was the ECC circuitry but does anybody have any idea I how I wo 
uld start the recovery procedure?

Note: I have looked in NeXTAnswers and have reviewed the disk command.  I have also tried fsck -b ????? /dev/rod0a but that does not work either.

Thanks for any help,

Dan (dan@ennex1.eng.utsa.edu)ectly

2)	I think that the problem was in the ECC circuitry, this is a guess.

What I want to do is to be able to recoup the data from the damaged disks without any loss.  This is probably impossible if it was the ECC circuitry but does anybody have any idea I how I wo
Technical Details
Message-ID: <1992Nov22.215434.22157@ringer.cs.utsa.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!emory!swrinde!ringer!news

Show Full Headers
Complete Article Headers
Newsgroups: comp.sys.next.sysadmin
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!emory!swrinde!ringer!news
From: dan@ennex1.eng.utsa.edu (Daniel Shelton)
Subject: OD screwing up opticals
Message-ID: <1992Nov22.215434.22157@ringer.cs.utsa.edu>
Sender: news@ringer.cs.utsa.edu
Nntp-Posting-Host: ennex3.eng.utsa.edu
Reply-To: dan@ennex1.eng.utsa.edu (Daniel Shelton)
Organization: Univ of Texas at San Antonio
Date: Sun, 22 Nov 1992 21:54:34 GMT
Lines: 22