几个月前我的一个 USB 驱动器就已经坏了，这次价格稍微贵了一点，所以我想修理它（上次我没有及时移除它就直接移除了，这次我不知道它为什么会有缺陷）。
我的两个 Kubuntu 系统对 USB 驱动器没有反应，我的两个 Windows 系统也无法正确检测到它（因此也无法修复它）。
它既没有显示在 gparted 中，也没有显示在 lsblk 中。有时 lsusb 会识别它：
Bus 003 Device 004: ID 05dc:a838 Lexar Media, Inc.
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x05dc Lexar Media, Inc.
idProduct 0xa838
bcdDevice 11.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
我可以通过 dmesg 识别它：
[ 77.676004] usb 3-3: new high-speed USB device number 4 using xhci_hcd
[ 77.809438] usb 3-3: New USB device found, idVendor=05dc, idProduct=a838
[ 77.809446] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 77.809450] usb 3-3: Product: USB Flash Drive
[ 77.809454] usb 3-3: Manufacturer: Lexar
[ 77.809457] usb 3-3: SerialNumber: AADBL26RWXBD0NG2
[ 77.826299] usb-storage 3-3:1.0: USB Mass Storage device detected
[ 77.826443] scsi host5: usb-storage 3-3:1.0
[ 77.826562] usbcore: registered new interface driver usb-storage
[ 77.829127] usbcore: registered new interface driver uas
[ 100.256875] usb 3-3: reset high-speed USB device number 4 using xhci_hcd
[ 105.368403] usb 3-3: device descriptor read/64, error -110
[ 120.583302] usb 3-3: device descriptor read/64, error -110
[ 120.799303] usb 3-3: reset high-speed USB device number 4 using xhci_hcd
[ 120.911288] usb 3-3: device descriptor read/64, error -71
[ 121.127280] usb 3-3: device descriptor read/64, error -71
[ 121.343233] usb 3-3: reset high-speed USB device number 4 using xhci_hcd
[ 121.343320] usb 3-3: Device not responding to setup address.
[ 121.547266] usb 3-3: Device not responding to setup address.
[ 121.751155] usb 3-3: device not accepting address 4, error -71
[ 121.863174] usb 3-3: reset high-speed USB device number 4 using xhci_hcd
[ 121.863316] usb 3-3: Device not responding to setup address.
[ 122.067232] usb 3-3: Device not responding to setup address.
[ 122.271085] usb 3-3: device not accepting address 4, error -71
[ 122.271211] usb 3-3: USB disconnect, device number 4
[ 122.383077] usb 3-3: new high-speed USB device number 5 using xhci_hcd
[ 122.495086] usb 3-3: device descriptor read/64, error -71
[ 122.711142] usb 3-3: device descriptor read/64, error -71
[ 122.927043] usb 3-3: new high-speed USB device number 6 using xhci_hcd
[ 123.039102] usb 3-3: device descriptor read/64, error -71
[ 123.255217] usb 3-3: device descriptor read/64, error -71
[ 123.471041] usb 3-3: new high-speed USB device number 7 using xhci_hcd
[ 123.471218] usb 3-3: Device not responding to setup address.
[ 123.675183] usb 3-3: Device not responding to setup address.
[ 123.879044] usb 3-3: device not accepting address 7, error -71
[ 123.991010] usb 3-3: new high-speed USB device number 8 using xhci_hcd
[ 123.991154] usb 3-3: Device not responding to setup address.
[ 124.195085] usb 3-3: Device not responding to setup address.
[ 124.398957] usb 3-3: device not accepting address 8, error -71
[ 124.398989] usb usb3-port3: unable to enumerate USB device
附言：我并不真的需要这些数据，不管怎样，对其他人来说会很好:)
答案1
如果 USB 驱动器未被识别为大容量存储设备（根据问题描述，这可能是问题所在），请根据此链接分析问题，
无法格式化我的 USB 驱动器。我已经尝试使用 mkdosfs 和 gparted
值得尝试此列表中的技巧
- 重新启动计算机并再次尝试使用 mkusb 恢复或擦除第一个兆字节。
- 断开其他 USB 设备。有时 USB 设备会相互干扰功能。
- 尝试其他 USB 端口和另一台计算机。
- 在另一台计算机上尝试另一个操作系统（Windows、MacOS）。
- 当你必须接受 U 盘损坏无法修复时，至少使用像你我这样的普通用户可用的工具，这是有限制的。请参阅此链接： Pendrive 寿命