Subject: Re: SCSI CD-ROM always empty on boot
To: Brad Spencer <bspencer@bassun.cb.att.com>
From: Chris G Demetriou <Chris_G_Demetriou@BALVENIE.PDL.CS.CMU.EDU>
List: current-users
Date: 07/24/1995 05:11:21
Somebody said:

> >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?

scsibus0 at aha0
aha0 targ 0 lun 0: <QUANTUM, EMPIRE_2100S, 1200> SCSI2 0/direct fixed
sd0 at scsibus0: 2006MB, 3053 cyl, 12 head, 112 sec, 512 bytes/sec
aha0 targ 6 lun 0: <TOSHIBA, CD-ROM XM-3501TA, 3054> SCSI2 5/cdrom removable
cd0 at scsibus0: cd present, 298166 x 2048 byte records

it works fine on my 3501, but mine has what looks like a later
revision than yours...

I could believe that old revs didn't work right, and that they 'fixed
it'.  (There had to be _some_ bugs, eh? 8-)



chris