这是 U 盘的 lsusb -v 日志。我没有看到它已安装。
Bus 001 Device 008: ID 058f:1234 Alcor Micro Corp. Flash Drive
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x058f Alcor Micro Corp.
idProduct 0x1234 Flash Drive
bcdDevice 0.01
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
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
这是 dmesg 日志：
[ 9710.384067] usb 1-2: new high-speed USB device number 5 using ehci-pci
[ 9710.518065] usb 1-2: New USB device found, idVendor=058f, idProduct=1234
[ 9710.518077] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 9710.518084] usb 1-2: Product: Mass Storage Device
[ 9710.518091] usb 1-2: Manufacturer: Alcor Micro
[ 9710.518691] usb-storage 1-2:1.0: USB Mass Storage device detected
[ 9710.520665] scsi host4: usb-storage 1-2:1.0
[ 9711.520937] scsi 4:0:0:0: Direct-Access Generic USB Flash Disk 7.76 PQ: 0 ANSI: 2
[ 9711.521515] sd 4:0:0:0: Attached scsi generic sg2 type 0
[ 9711.527023] sd 4:0:0:0: [sdb] Attached SCSI removable disk
[ 9730.147507] usb 1-2: USB disconnect, device number 5
[ 9730.416065] usb 1-2: new high-speed USB device number 6 using ehci-pci
[ 9730.944065] usb 1-2: device not accepting address 6, error -71
[ 9731.456065] usb 2-2: new full-speed USB device number 2 using uhci_hcd
[ 9731.594148] usb 2-2: not running at top speed; connect to a high speed hub
[ 9731.616149] usb 2-2: New USB device found, idVendor=058f, idProduct=1234
[ 9731.616159] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 9731.616167] usb 2-2: Product: Mass Storage Device
[ 9731.616174] usb 2-2: Manufacturer: Alcor Micro
[ 9731.618324] usb-storage 2-2:1.0: USB Mass Storage device detected
[ 9731.618690] scsi host5: usb-storage 2-2:1.0
[ 9732.620240] scsi 5:0:0:0: Direct-Access Generic USB Flash Disk 7.76 PQ: 0 ANSI: 2
[ 9732.620833] sd 5:0:0:0: Attached scsi generic sg2 type 0
[ 9732.631256] sd 5:0:0:0: [sdb] Attached SCSI removable disk
[ 9749.772165] usb 2-2: USB disconnect, device number 2
[ 9751.220074] usb 1-1: new high-speed USB device number 8 using ehci-pci
[ 9751.354060] usb 1-1: New USB device found, idVendor=058f, idProduct=1234
[ 9751.354072] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 9751.354080] usb 1-1: Product: Mass Storage Device
[ 9751.354086] usb 1-1: Manufacturer: Alcor Micro
[ 9751.354857] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 9751.355433] scsi host6: usb-storage 1-1:1.0
[ 9752.352940] scsi 6:0:0:0: Direct-Access Generic USB Flash Disk 7.76 PQ: 0 ANSI: 2
[ 9752.353527] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 9752.358383] sd 6:0:0:0: [sdb] Attached SCSI removable disk
我没有看到任何内容：
sudo fdisk-l
df-h
有时 U 盘的 LED 会闪烁一会儿，然后熄灭。我不知道问题出在哪里。
答案1
从您的日志来看，似乎 alcor trancend jetflash 被检测为 /dev/sdb
假设它没有配置任何分区，你可以用 gparted 格式化它
sudo apt-get install gparted
gksudo gparted