Re: USB device incongruities
Johannes Wiedersich <johannes@physik.blm.tu-muenchen.de>:
> Björn Lindström wrote:
>
>> I have two etch systems, one on a desktop, one on a laptop. I have the
>> usb-storage module loaded on both.
>>
>> On the desktop, if I plug my camera (a Pentax Optio M20) in, I get a
>> /dev/sda and a /dev/sda1 device. On the laptop I just see /dev/sda,
>> and consequently can't mount it. Why would that be?
>
> Have you tried mounting it as root from a console?
The device /dev/sda1 still doesn't exist.
> Have you looked at the output of 'fdisk -l' from both devices?
When running that on /dev/sda with the camera attached there is no
ouput.
Now I notice there's some probably significant error messages showing
up in dmesg:
usb 2-1: new full speed USB device using uhci_hcd and address 24
scsi4 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 24
usb-storage: waiting for device to settle before scanning
Vendor: PENTAX Model: DIGITAL_CAMERA Rev: 1.00
Type: Direct-Access ANSI SCSI revision: 02
usb 2-1: reset full speed USB device using uhci_hcd and address 24
usb 2-1: device descriptor read/64, error -84
usb 2-1: device descriptor read/64, error -84
usb 2-1: reset full speed USB device using uhci_hcd and address 24
usb 2-1: device descriptor read/64, error -84
usb 2-1: device descriptor read/64, error -84
usb 2-1: reset full speed USB device using uhci_hcd and address 24
usb 2-1: device descriptor read/8, error -84
usb 2-1: device descriptor read/8, error -84
usb 2-1: reset full speed USB device using uhci_hcd and address 24
usb 2-1: device descriptor read/8, error -84
usb 2-1: device descriptor read/8, error -84
usb 2-1: USB disconnect, address 24
sda : READ CAPACITY failed.
sda : status=0, message=00, host=1, driver=00
sda : sense not available.
sda: Write Protect is off
sda: Mode Sense: 00 00 00 00
sda: assuming drive cache: write through
sda : READ CAPACITY failed.
sda : status=0, message=00, host=1, driver=00
sda : sense not available.
sda: Write Protect is off
sda: Mode Sense: 00 00 00 00
sda: assuming drive cache: write through
sda : READ CAPACITY failed.
sda : status=0, message=00, host=1, driver=00
sda : sense not available.
sda: Write Protect is off
sda: Mode Sense: 00 00 00 00
sda: assuming drive cache: write through
sda:<3>Buffer I/O error on device sda, logical block 0
Buffer I/O error on device sda, logical block 0
unable to read partition table
sd 4:0:0:0: Attached scsi removable disk sda
usb-storage: device scan complete
usb 2-1: new full speed USB device using uhci_hcd and address 25
usb 2-1: device descriptor read/64, error -84
usb 2-1: device descriptor read/64, error -84
usb 2-1: new full speed USB device using uhci_hcd and address 26
usb 2-1: device descriptor read/64, error -84
usb 2-1: device descriptor read/64, error -84
usb 2-1: new full speed USB device using uhci_hcd and address 27
usb 2-1: device descriptor read/8, error -84
usb 2-1: device descriptor read/8, error -84
usb 2-1: new full speed USB device using uhci_hcd and address 28
usb 2-1: device descriptor read/8, error -84
usb 2-1: device descriptor read/8, error -84
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