From owner-freebsd-hardware  Sun Oct 14 12:39:52 2001
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Date: Sun, 14 Oct 2001 13:39:41 -0600
From: "Kenneth D. Merry" <ken@kdm.org>
To: Randy Bush <randy@psg.com>
Cc: freebsd-hardware@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG
Subject: Re: can't mount maxtor 3000 le
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In-Reply-To: <E15sr4Q-000N2w-00@rip.psg.com>; from randy@psg.com on Sun, Oct 14, 2001 at 12:37:10PM -0700
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On Sun, Oct 14, 2001 at 12:37:10 -0700, Randy Bush wrote:
> i have a usb disk, a maxtor 3000LE
> -stable
> kernel

[ ... ]

>     da2 at umass-sim0 bus 0 target 0 lun 0
>     da2: <MAXTOR 4 K040H2 A08.> Fixed Direct Access SCSI-0 device 
>     da2: 650KB/s transfers
>     da2: 38182MB (78198750 512 byte sectors: 64H 32S/T 38182C)
> 
> camcontrol likes it
>     # camcontrol devlist
>     <IBM DDYS-T18350N S93E>   at scbus0 target 0 lun 0 (pass0,da0)
>     <IBM DDYS-T18350N S93E>   at scbus0 target 1 lun 0 (pass1,da1)
>     <MAXTOR 4 K040H2 A08.>    at scbus1 target 0 lun 0 (pass2,da2)
>     # camcontrol tur da2
>     Unit is not ready
> 
> but i can not fdisk it
> 
>     # fdisk da2
>     fdisk: can't open device /dev/da2
>     fdisk: cannot open disk /dev/da2: Input/output error
> 
> and it logs
> 
>     (da2:umass-sim0:0:0:0): READ(06). CDB: 8 0 0 0 1 0 
>     (da2:umass-sim0:0:0:0): ILLEGAL REQUEST asc:20,0
>     (da2:umass-sim0:0:0:0): Invalid command operation code
>     da2: reading primary partition table: error reading fsbn 0
> 
> clues?

Go into sys/cam/scsi/scsi_da.c, and add a quirk entry to disble 6 byte
commands.

Ken
-- 
Kenneth Merry
ken@kdm.org

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