手动挂硬盘, U盘我都会. 现到手一手机储存卡, SanDisk, TransFlash Adapter, 无法挂载.

用hub连到usb上后, /dev/里, 仅出现sdb而没有sdb1,
mount sdb, 则显示mount: no medium found on /dev/sdb

mount sdb1, 则显示mount: special device sdb1 does not exist

lsusb, 则显示 Bus 001 Device 009: ID 0420:1307 Chips and Technologies Celly SIM Card Reader

fdisk -l, 显示的则全是硬盘的内容

dmesg|tail, 显示
[16685.355173] sd 6:0:0:0: [sdb] Sense Key : 0x2 [current]
[16685.355197] sd 6:0:0:0: [sdb] ASC=0x3a ASCQ=0x0
[16685.355213] sd 6:0:0:0: [sdb] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[16685.355262] end_request: I/O error, dev sdb, sector 0
[17512.788844] Adding 730920k swap on /dev/sda7. Priority:-1 extents:1 across:730920k
[18512.063914] usb 1-2: USB disconnect, device number 7
[18527.631659] usb 1-1: new high-speed USB device number 8 using ehci_hcd
[18527.759121] scsi7 : usb-storage 1-1:1.0
[18528.759178] scsi 7:0:0:0: Direct-Access ChipBank SD/MM Reader 4080 PQ: 0 ANSI: 2
[18528.764732] sd 7:0:0:0: [sdb] Attached SCSI removable disk


google了一番, 发现这还算是个普遍的问题, 但却没找到明确的答案.