Le ultime righe di dmesg sono le seguenti

USB Mass Storage device found at 2
USB Mass Storage support registered.
Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
SCSI device sda: 251904 512-byte hdwr sectors (129 MB)
sda: Write Protect is off
/dev/scsi/host1/bus0/target0/lun0: p4
usb.c: USB disconnect on device 00:10.4-5 address 2
hub.c: new USB device 00:10.4-6, assigned address 3
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 3
usb.c: USB disconnect on device 00:10.4-6 address 3
hub.c: new USB device 00:10.4-5, assigned address 4
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 4
FAT: bogus logical sector size 20487
VFS: Can't find a valid FAT filesystem on dev 08:00.