dmesg告诉我当我插入时：
[ 16:44] sd 6:0:0:4: [sdg] Spinning up disk...
[ +1.008912] ...................................................................................................not responding...
[ 16:45] sd 6:0:0:4: [sdg] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ +0.000002] sd 6:0:0:4: [sdg] Sense Key : Not Ready [current]
[ +0.000001] sd 6:0:0:4: [sdg] Add. Sense: Logical unit is in process of becoming ready