usb/80361: [umass] [patch] mounting of Dell usb-stick fails

[martinko]

Matthias Apitz wrote:
> The following reply was made to PR usb/80361; it has been noted by GNATS.
> 
> From: Matthias Apitz <matthias.apitz at oclc.org>
> To: bug-followup at FreeBSD.org, fbusse at gmx.de
> Cc:  
> Subject: Re: usb/80361: [umass] [patch] mounting of Dell usb-stick fails
> Date: Wed, 6 Aug 2008 11:30:54 +0200
> 
>  I have the same problem in FreeBSD 7.0-REL with the following USB key:
>  
>  $ usbdevs -v
>  ...
>  port 2 addr 2: high speed, power 94 mA, config 1, Store'n'go(0x0020), Verbatim(0x08ec), rev 2.00
>  
>  which only works (fine) when plug'ed in at boot time:
>  
>  da0 at umass-sim0 bus 0 target 0 lun 0
>  da0: <VBTM Store'n'go 6.51> Removable Direct Access SCSI-0 device 
>  da0: 40.000MB/s transfers
>  da0: 3812MB (7807999 512 byte sectors: 255H 63S/T 486C)
>  
>  if you plug it in later you will get:
>  
>  Aug  6 10:19:36 rebelion kernel: da0 at umass-sim0 bus 0 target 0 lun 0
>  Aug  6 10:19:36 rebelion kernel: da0: <VBTM Store'n'go 6.51> Removable Direct Access SCSI-0 device 
>  Aug  6 10:19:36 rebelion kernel: da0: 40.000MB/s transfers
>  Aug  6 10:19:36 rebelion kernel: da0: Attempt to query device size failed: UNIT ATTENTION, Medium not present
>  
>  and the devices /dev/da0s* does not show up; you only may access
>  /dev/da0 with fdisk(8) or even with dd(1);
>  
>  -- 
>  Matthias Apitz

I get that error message quite often, too. :-/

Oct 28 00:24:50 mb-aw1n-bsd kernel: da0: <SanDisk Cruzer Micro 6.51> 
Removable Direct Access SCSI-0 device
Oct 28 00:24:50 mb-aw1n-bsd kernel: da0: 40.000MB/s transfers
Oct 28 00:24:50 mb-aw1n-bsd kernel: da0: Attempt to query device size 
failed: UNIT ATTENTION, Medium not present

This is on standard 6-STABLE.

M.