I just tried this with CentOS 5.3 as well, and got exactly the same
symptoms and dmesg output. (As a point of comparison, Ubunu 8.04 on
my work laptop is able to access the drive.)
Obviously "not detected" is a misapprehension, though I'm puzzled why
"lsusb" doesn't show it. The device is there even though the
partition table can't be read.
---------- Forwarded message ----------
From: Bart Schaefer <barton.schaefer@xxxxxxxxx>
Date: Tue, Apr 28, 2009 at 10:58 AM
Subject: Re: USB device not detected (CentOS 4.7)
To: CentOS mailing list <centos@xxxxxxxxxx>
On Tue, Apr 28, 2009 at 10:01 AM, Craig White <craigwhite@xxxxxxxxxxx> wrote:
> On Tue, 2009-04-28 at 09:48 -0700, Bart Schaefer wrote:
>> I recently purchased an I/O Magic USB enclosure for 3.5" IDE
> ----
> check what it says about the drive in dmesg after you plugged it in.
Hmm.
usb 1-6: new high speed USB device using address 4
scsi7 : SCSI emulation for USB Mass Storage devices
Vendor: HDS72251 Model: 6VLAT80 Rev: 0 0
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sdd: 321672960 512-byte hdwr sectors (164697 MB)
sdd: assuming drive cache: write through
SCSI device sdd: 321672960 512-byte hdwr sectors (164697 MB)
sdd: assuming drive cache: write through
(so far this is correct, it's a 160GB drive in the enclosure)
(the leading space on the next line is literally there in dmesg)
sdd:SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
ldm_validate_partition_table(): Disk read failed.
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
unable to read partition table
Attached scsi disk sdd at scsi7, channel 0, id 0, lun 0
USB Mass Storage device found at 4
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 8
Buffer I/O error on device sdd, logical block 1
(the last three lines then repeat for each of sectors 16-568, logical
blocks 2-71)
SCSI error : <7 0 0 0> return code = 0x10070000
end_request: I/O error, dev sdd, sector 512
Buffer I/O error on device sdd, logical block 64
usb 1-6: USB disconnect, address 4
(that's where I unplugged)
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