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From: Hans Petter Selasky <hselasky@c2i.net>
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Cc: Tobias Grosser <grosser@fim.uni-passau.de>
Subject: Re: USB Harddrive not recognized (umass appears, da0 not)
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On Saturday 29 August 2009 20:24:11 Tobias Grosser wrote:
> Hi,
>
> I just bought two external USB hard drives and tried to use them on
>
> http://svn.freebsd.org/base/stable/8@196642
>
> The drives are: Western Digital My Passport Essential (500 and 320 GB)
>
> After connecting them I get these log messages:
> ------------------------------------------------------------------------
> ugen0.2: <Western Digital> at usbus0
> umass0: <Western Digital External HDD, class 0/0, rev 2.00/1.75, addr 2>
> on usbus0
> umass0:  SCSI over Bulk-Only; quirks = 0x0000
> umass0:0:0:-1: Attached to scbus0
> ------------------------------------------------------------------------
>
> However there is never any 'ad' device created. So I am not able to use
> the harddisk.
>
>
> "camcontrol devlist" does not return anything.
>
>
> "camcontrol rescan all" blocks in:
> ------------------------------------------------------------------------
>  1279 root   1  45    0  3472K   828K cbwait  0   0:00  0.00% camcontrol
> ------------------------------------------------------------------------
> and returns after removing the usb disk.
>
>
> After removing the disk I always get:
> ------------------------------------------------------------------------
> % sudo camcontrol rescan all
> camcontrol: CAMIOCOMMAND ioctl failed: Invalid argument
> ------------------------------------------------------------------------
>
>
> /var/log/messages output is attached for
> hw.usb.debug=99999

Try only:

sysctl hw.usb.umass.debug=-1

And send new log.

--HPS