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Date:      Thu, 24 Jun 1999 13:32:23 -0700
From:      Woody Carey <carey@roguewave.com>
To:        "'Doug White'" <dwhite@resnet.uoregon.edu>, Woody Carey <carey@roguewave.com>
Cc:        "'freebsd-questions@freebsd.org'" <freebsd-questions@FreeBSD.ORG>, hackers@FreeBSD.ORG
Subject:   RE: CDROM drive doesn't probe if no CD present [Was:cannot mount  cd indicates bad ide cd drive - replace?]
Message-ID:  <EB55BCC162CAD111BD0A00A0C9979E3201944DBA@CVO1>

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Re: what brand/model is it?

US Drives 40x Model:USDRIVES 24DT

> -----Original Message-----
> From: Doug White [mailto:dwhite@resnet.uoregon.edu]
> Sent: Tuesday, June 22, 1999 12:45 PM
> To: Woody Carey
> Cc: 'freebsd-questions@freebsd.org'; hackers@FreeBSD.ORG
> Subject: RE: CDROM drive doesn't probe if no CD present [Was:cannot
> mount cd indicates bad ide cd drive - replace?]
> 
> 
> I'm lofting this up on -hackers to get the attention of the ATAPI CD
> driver programmer -- Soren, you still around?  Take a look at this.
> 
> On Tue, 22 Jun 1999, Woody Carey wrote:
> 
> > Ok, here is some more information:
> > 
> > Here is the behavior when there is no cd in the drive at 
> bootup [reboot,
> > actually]
> > ^M^[[Kmyname# mount /cdrom
> > cd9660: Input/output error
> > myname# dmesg
> 
> [...]
> 
> > wdc0: unit 1 (atapi): <ATAPI CDROM/V2.10>, removable, 
> accel, dma, iordy
> > acd0: drive speed 0 - 4125KB/sec, 128KB cache
> > acd0: supported read types: CD-R, CD-RW, CD-DA
> > acd0: Audio: play, 255 volume levels
> > acd0: Mechanism: ejectable tray
> > acd0: Medium: no/blank disc inside, unlocked         
> 
> > and here is the dmesg output and mount output with a cd in 
> the drive at
> > boot:
> > 
> > myname# dmesg
> [...]
> > wdc0: unit 1 (atapi): <ATAPI CDROM/V2.10>, removable, 
> accel, dma, iordy
> > acd0: drive speed 4125KB/sec, 128KB cache
> > acd0: supported read types: CD-R, CD-RW, CD-DA
> > acd0: Audio: play, 255 volume levels
> > acd0: Mechanism: ejectable tray
> > acd0: Medium: CD-ROM 120mm data disc loaded, unlocked
> 
> > myname# mount /cdrom     
> > 
> > There was some success message on the console after this mount
> > indicating success.
> > It did not appear in this script output, obviously.  
> 
> Bizarre.  That may be a driver bug or your drive is getting into an
> inconsistent state if it doesn't boot with a CD present.
> 
> What brand/model of CD drive is it?
> 
> Doug White                               
> Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
> http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org
> 
> 


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