# Get info about block device
#获取有关块设备的信息
udisksctl info -b <block_device>

# Mounting device 
#安装装置
udisksctl mount --block-device <block_device>

# Unmounting device 
#卸载设备
udisksctl unmount --block-device <block_device>

# Get help 
#得到帮助
udisksctl help