openwrt U盘热插拔

自动挂载U盘：编辑 /etc/hotplug.d/block/10-mount 写入以下内容

#!/bin/ash  case "$ACTION" in      add)          for i in $(ls /dev/ | grep 'sd[a-z][1-9]')          do              mkdir -p /mnt/$i              mount -o iocharset=utf8,rw /dev/$i /mnt/$i              if [ $? -ne 0 ]              then                  mount -o rw /dev/$i /mnt/$i              fi          done          ;;      remove)          MOUNT=`mount | grep -o '/mnt/sd[a-z][1-9]'`          for i in $MOUNT          do              umount $i              if [ $? -eq 0 ]              then                  rm -r $i              fi          done          ;;  esac