Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!decwrl!shelby!polya!ali
From: ali@polya.Stanford.EDU (Ali T. Ozer)
Newsgroups: comp.sys.next
Subject: Re: fixing bad superblocks
Keywords: NeXT bad block optical disk
Message-ID: <7701@polya.Stanford.EDU>
Date: 14 Mar 89 18:31:02 GMT
References: <1208@blake.acs.washington.edu> <1740@mentor.cc.purdue.edu>
Sender: Ali T. Ozer <ali@polya.Stanford.EDU>
Reply-To: aozer@NeXT.com (Ali Ozer)
Organization: .
Lines: 18

In article <1740@mentor.cc.purdue.edu> gerrit@nova.cc.purdue.edu writes:
>I remember a comment about this at the 3rd NeXT developer's camp.  When
>they were going through "basic training" on the machine (booting, mounting,
>shutting down, etc) they told people let the machine sit for 60 seconds at
>some point near the end of a shutdown.

My understanding is to make sure you wait at least 60 seconds after
unmounting the disk before ejecting it. What I usually do after unmounting
an optical is to

  sleep 60; disk -e /dev/rod0a

just to make sure. This of course means that if you shut off the machine
without unmounting the optical there's a chance you might trash it...

This all pertains to 0.8 only, of course...

Ali Ozer, NeXT Developer Support