在Linux下用命令行实现支持USB设备
将USB设备插上电脑，流程如下
[root@vmserver admin]$ su
[root@vmserver admin]# mkdir /mnt/usb
[root@vmserver admin]# dmesg | tail
sdb: Mode Sense: 0b 00 00 08
sdb: assuming drive cache: write through
SCSI device sdb: 256000 512-byte hdwr sectors (131 MB)
sdb: Write Protect is off
sdb: Mode Sense: 0b 00 00 08
sdb: assuming drive cache: write through
sdb: sdb1
Attached scsi removable disk sdb at scsi5, channel 0, id 0, lun 0
Attached scsi generic sg4 at scsi5, channel 0, id 0, lun 0, type 0
USB Mass Storage device found at 6
root@vmserver admin]# mount -t vfat /dev/sdb1 /mnt/usb
注意第8行，最终的设备名称是sdb1而不是sdb,使用的文件系统类型为vfat。