Path: utzoo!utgpu!cunews!bnrgate!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: unr!malc@uunet.uu.net (Malcolm Carlock)
Newsgroups: comp.sys.sun
Subject: CD-ROM on Sun IPC fails after multiple mounts -- The Solution
Keywords: No Digest Subjects during Flush
Message-ID: <4099@brchh104.bnr.ca>
Date: 27 Jun 91 20:22:00 GMT
Sender: news@brchh104.bnr.ca
Organization: Sunspots, Flush Mode
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Approved: sun-spots@rice.edu
X-Original-Date:    18 Jun 91 06:22:47 GMT

A while back I reported that mounts of the CD-ROM drive on a Sun IPC here
would fail with an I/O error after the second or third eject, requiring
a kernel reboot for recovery.

The way around this is to do an explicit umount of the CD-ROM filesystem
prior to the eject (easy if you've written a shell front-end or something
to make the calls for you.)  Yes, eject is supposed to do the umount for
you but apparently there's a problem with eject.

Sun acknowledges this particular problem, which apparently lies with the
driver (?)  An "explicit umount" is Sun's recommended solution for now.

Hope this helps.