Subject: Re: SCSI CD-ROM always empty on boot
To: None <current-users@NetBSD.ORG>
From: Brad Spencer <>
List: current-users
Date: 07/23/1995 19:20:43
>Just a minor nit,
>on boot my system always says:
>> ahb0 at isa0 port 0x1000-0x1fff irq 11: model 1740 or 1742, revision 2
>> scsibus0 at ahb0
>> ahb0 targ 0 lun 0: <QUANTUM, LPS525S, 3100> SCSI2 0/direct fixed
>> sd0 at scsibus0: 501MB, 2448 cyl, 6 head, 69 sec, 512 bytes/sec
>> ahb0 targ 1 lun 0: <HP, C3325A, 4299> SCSI2 0/direct fixed
>> sd1 at scsibus0: 2069MB, 3703 cyl, 9 head, 127 sec, 512 bytes/sec
>> ahb0 targ 4 lun 0: <TOSHIBA, CD-ROM XM-3501TA, 2694> SCSI2 5/cdrom removable
>> cd0 at scsibus0: drive empty
>                   ^^^^^^^^^^^
>even if drive cd0 is not empty. Is this a SCSI driver bug or does my
>CD-ROM lie? Does anybody get no "drive empty" message for a SCSI CD-ROM?
>(This is on a i386, but I guess the same SCSI code is used by nearly
>all ports...)

I have a Plextor SCSI2 drive and it is able to identify if a disk is
present with a message simular to the following:

cd0 at scsibus0: cd present, 174035 x 2048 byte records

This is a sup from around 7/9

It has been able to do this since April, at least.

Brad Spencer - [work]
      [more work]