Errors with usb stick

[Giulio Canevari <giuliogiuseppecarlo@interfree.it>]

Hello,

every time i plug in the usb memory stick i get these messages ( on 
stderr ):

> usb 1-2.3: new full speed USB device using address 8
> scsi4 : SCSI emulation for USB Mass Storage devices
>   Vendor: AVIXE     Model: PDU01_128 2.0     Rev: 0.00
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> SCSI device sda: 247296 512-byte hdwr sectors (127 MB)
> sda: assuming Write Enabled
> sda: assuming drive cache: write through
> SCSI error: host 4 id 0 lun 0 return code = 8000002
> 	Sense class 7, sense error 0, extended sense 0
>  /dev/scsi/host4/bus0/target0/lun0: unknown partition table
> Attached scsi removable disk sda at scsi4, channel 0, id 0, lun 0
> USB Mass Storage device found at 8
> SCSI error: host 4 id 0 lun 0 return code = 8000002
> 	Sense class 7, sense error 0, extended sense 0
> EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended



In particular, what does the following means?

> SCSI error: host 4 id 0 lun 0 return code = 8000002
> 	Sense class 7, sense error 0, extended sense 0

A part from this the key seem to work fine.

Thank you,
--
Giulio Canevari