&> /dev/null

查看设备sudo fdisk -l /dev/sda3 567296 142574140 142006845 67.7G Microsoft basic data /dev/sda7 147367936 780386303 633018368 301.9G Microsoft basic data /dev/sda9 781410304 1707761663 926351360 441.7G Microsoft basic data卸载设备sudo umount /dev/sda3 sudo umount /dev/sda...