[1451] in linux-scsi channel archive
Re: CD-ROM mounting problems
daemon@ATHENA.MIT.EDU (Leonard N. Zubkoff)
Thu Feb 20 14:59:25 1997
Date: Thu, 20 Feb 1997 11:48:30 -0800
From: "Leonard N. Zubkoff" <lnz@dandelion.com>
To: dirk@informatik.uni-frankfurt.de
CC: linux-scsi@vger.rutgers.edu
In-reply-to: <19970220192356.GU31169@infinity.milliByte.de>
(dirk@informatik.uni-frankfurt.de)
Date: Thu, 20 Feb 1997 19:23:56 +0100
From: dirk@informatik.uni-frankfurt.de (Dirk Foersterling)
Until yesterday I only used CD-ROM drives (2x) with proprietary
controllers. The mount command mounted the discs properly no matter how
long the spin-up and initialisation time was.
Now, I use a SCSI drive (Pioneer DR-U10X) and I have to submit the most
mount commands for that drive at least twice. In most cases, the first
mount fails, but another mount command supplied later does the job.
I have a ncr825 based card and use the ncr53c8xx driver.
It seems, that the SCSI-CD-ROM driver doesn't wait/retry like the
Mitsumi and Matsushita driver. Is this the expected behaviour? How can I
work around this smoothly? (a script with something like "mount ; sleep 5
; mount" sometimes works, but it throws error messages at me, if the first
mount was successfull).
Are you mounting the drive immediately after inserting the CD-ROM? I'm still
using Toshiba 3401B's, and the only time I notice a problem mounting one is
when the command is issued before the drive has become ready. Please include
the logged error messages when you ask questions like this. Without them, it's
very hard to know whether what you are seeing is normal and reasonable
behavior, or a real problem. It's quite possible we can improve the SCSI
CD-ROM driver, but we'll need more information to understand what precisely is
happening.
Leonard
