在ubuntu下手工挂载u盘
使用server版本。默认情况下ubuntu不自动挂载u盘。
首先要找到设备名。执行dmesg命令：
dmesg -c
用来清空系统日志缓存。然后插入u盘。
在此执行：
dmesg
看到类似如下信息：
[ 813.658014] usb 3-2: new high speed USB device using ehci_hcd and address 3
[ 813.809701] usb 3-2: configuration #1 chosen from 1 choice
[ 813.816246] scsi4 : SCSI emulation for USB Mass Storage devices
[ 813.828488] usb-storage: device found at 3
[ 813.828501] usb-storage: waiting for device to settle before scanning
[ 818.825125] usb-storage: device scan complete
[ 818.826321] scsi 4:0:0:0: Direct-Access Flash Disk 2.10 PQ: 0 ANSI: 2
[ 818.845227] sd 4:0:0:0: [sdb] 2061312 512-byte hardware sectors (1055 MB)
[ 818.846010] sd 4:0:0:0: [sdb] Write Protect is off
[ 818.846022] sd 4:0:0:0: [sdb] Mode Sense: 0b 00 00 08
[ 818.846028] sd 4:0:0:0: [sdb] Assuming drive cache: write through
[ 818.851249] sd 4:0:0:0: [sdb] 2061312 512-byte hardware sectors (1055 MB)
[ 818.853372] sd 4:0:0:0: [sdb] Write Protect is off
[ 818.853390] sd 4:0:0:0: [sdb] Mode Sense: 0b 00 00 08
[ 818.853396] sd 4:0:0:0: [sdb] Assuming drive cache: write through
[ 818.853438] sdb: unknown partition table
[ 818.859506] sd 4:0:0:0: [sdb] Attached SCSI removable disk
[ 818.859619] sd 4:0:0:0: Attached scsi generic sg2 type 0
说明设备名为sdb。
为挂载做准备，创建一个目录：
mkdir /media/usb
使用mount挂载设备：
mount -t vfat /dev/sdb /media/usb
这时u盘已经挂载，可以访问。
使用完毕后，需要卸载：
umount /dev/sdb
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