路由器硬件为：mt7620（铁壳）
| 主机型号 | Lenovo Y1 |
| 固件版本 | OpenWrt Designated Driver 12009 / LuCI Master (git-17.174.41033-de2e92a) |
| 内核版本 | 4.4.14 |
当时刷机是用了snapshot版本，现在后悔死了
查了一下，内核4.4.14对应的是17.01
修改opkg配置，添加：
arch all 100
arch ramips 200
arch mipsel_24kc 300
将软件源修改为：
#src/gz designated_driver_base http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/base
#src/gz designated_driver_kernel http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/kernel
#src/gz designated_driver_luci http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/luci
#src/gz designated_driver_management http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/management
#src/gz designated_driver_packages http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/packages
#src/gz designated_driver_routing http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/routing
#src/gz designated_driver_telephony http://downloads.openwrt.org/snapshots/targets/ramips/mt7620/packages/telephony
#--------------------------------------------------------------------------------------------------------------------------------------------------------------------
# src/gz designated_driver_targets http://downloads.openwrt.org/snapshots/trunk/ramips/mt7620/packages/targets
#-----------------------------------------------------------------------------------------------------------------------------------------------------------------
src/gz reboot_core http://archive.openwrt.org/releases/17.01.0/targets/ramips/mt7620/packages
src/gz reboot_base http://archive.openwrt.org/releases/17.01.0/packages/mipsel_24kc/base
src/gz reboot_luci http://archive.openwrt.org/releases/17.01.0/packages/mipsel_24kc/luci
src/gz reboot_packages http://archive.openwrt.org/releases/17.01.0/packages/mipsel_24kc/packages
src/gz reboot_routing http://archive.openwrt.org/releases/17.01.0/packages/mipsel_24kc/routing
src/gz reboot_telephony http://archive.openwrt.org/releases/17.01.0/packages/mipsel_24kc/telephony
然后opkg update成功，安装相应的包也成功了