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Date: Wed, 30 May 2007 12:34:05 +0200
From: =?ISO-8859-15?Q?C=E9dric?= Devillers
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	Wed, 30 May 2007 12:41:52 +0200 (CEST)
Subject: Problem with external usb harddisk
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Hello,

I have a problem with an external usb harddisk in FreeBSD 5.4.
It seems to be recognize but when I try to fdisk it, I have the following
message : fdisk: can't open device /dev/da0
	  fdisk: cannot open disk /dev/da0: Input/output error


The kernel dmesg is :

umass0: VIA Technologies Inc. USB 2.0 IDE Bridge, rev 2.00/0.03, addr 2
umass0: 8070i (ATAPI) over Bulk-Only; quirks = 0x0000
umass0:0:0:-1: Attached to scbus0
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <Hitachi HDS721680PLA P21O> Fixed Direct Access SCSI-2 device 
da0: 1.000MB/s transfers
da0: 78533MB (160836480 512 byte sectors: 255H 63S/T 10011C)
umass0: Invalid CSW: tag 7 should be 8
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x10, scsi status == 0x0 
Opened disk da0 -> 5


Is there a solution?

Thanks for your responses.

Cordialy,

	Cedric