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FD TMC950 and NEC-CD ROM

daemon@ATHENA.MIT.EDU (Tom Ward)
Sat Jun 24 11:01:47 1995

Date: Sat, 24 Jun 1995 10:04:22 +0000 (GMT)
From: Tom Ward <tom@zapata.demon.co.uk>
To: linux-scsi@vger.rutgers.edu
CC: linux-cdrom@vger.rutgers.edu

I recently unearthed my PC and set about installing Linux (patch level
1.2.10). I am unable to mount the CD. 
When I type:
	mount -t iso9660 /dev/scd0 /mnt
I see:
    scsi aborting command due to timeout : pid 10, scsi0, id 4, lun 0
    VENDOR SPECIFIC(0xde) 03 b0 00 00 00 00 00 00 00
    sr_photcd: ioctl error (NEC): 0x27010000
    SCSI CD error: host 0 id 4 lun 0 return  code 27010000
     Sense class 0, sense error 0, extended sense 0
    ^
    There was a non alphanumeric symbol here
    VFS: Disk change detected on device 11/0
    CD-ROM I/O error: dev 0b00, sector 64
    isofs_read_super: bread failes, dev 0xb00 iso_blknum 16
    SCSI CD error: host 0 id 4 lun 0 return  code 27010000
     Sense class 0, sense error 0, extended sense 0
    ^
    There was a non alphanumeric symbol here


The card and CD are both detected correctly at boot up (see below).
    TMC-8xx/TMC-950 options: ARBITRATE SLOW_HANDSHAKE FAST32
                                                   ^^^^^^^^^^^^^^^^^^^^
                                                   (I added this, it
    made no difference)
    scsi0:TMC-8xx/TMC-950 at irq 5, address 0xCA000
    scsi  : 1 host.
        Vendor: NEC         Model: CD-ROM DRIVE        Rev: 
        Type:     CD-ROM                                                
                   ANSI SCSI revisioni: 00
    Detected scsi CD-ROM sr0 at scsi0, id 4, lun0
                                                    ^^
                                                (I named my device scd0
    does this matter? It's still 11 0 b etc.)
    scsi : detected 1 SCSI cdrom total.

The scsi card and CD both work fine under DOS, the scsi card works fine
with a scsi disk under DOS and Linux.
The same scsi card, PC, and CD used to work with Linux 1.0.8, the disk
is different, (I therefore tried disconnecting the scsi disk (ie having
only the CD on the scsi Bus, the same result)

Thanks for any help,

Tom Ward.

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