Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!aplcen!haven!adm!cmcl2!lanl!jpm
From: jpm@lanl.gov (James P Mcgee)
Newsgroups: comp.sys.next
Subject: mounting write-protected opticals
Keywords: mounting, optical, write-protected
Message-ID: <40048@lanl.gov>
Date: 2 Jan 90 22:18:16 GMT
Organization: Los Alamos National Laboratory
Lines: 27


   Has anyone succeeded in mounting an optical disk with the write-protect 
tab set on?

   I've tried 
'mount -r /dev/od0a /dev/<name>'
'mount -o ro /dev/od0a /dev/<name>'

   When I try either of the above, I get a dialog box with a message to
insert a disk.  When I do, I immediately (without spin-up) get:
   od0?: drive command failed (disk write protected) block 0 phys block 0 
   (4149:0:0)
   and the disk is ejected.
   
   If I plug the disk in again, it spins up, then I get
   od0?: write failed (disk write protected) block 0 phys block 0 (4149:0:0)
   and the disk is again ejected.
   
   Anybody got any suggestions?
   
   Please e-mail responses to jpm@lanl.gov.  (I'm a couple of weeks behind
in reading this group.)  If someone solves the problem, I'll post to the
group.

   Thanks,
   Pat McGee, jpm@lanl.gov
.