Xiaomi MiWIFI Mesh Router (D01) support

stas2z · January 22, 2020, 12:05pm

stas2z · January 22, 2020, 12:37pm

juppin · January 22, 2020, 9:45pm

Good work.

Why not squashing everything between kernel1 and cfg_bak into a big single writeable ubi partition?

Or implement real dual partition layout with added u-boot env support.
u-boot env support has to be added here:

openwrt/openwrt/blob/master/package/boot/uboot-envtools/files/ipq40xx

#!/bin/sh
#
# Copyright (C) 2016 LEDE
#

[ -e /etc/config/ubootenv ] && exit 0

touch /etc/config/ubootenv

. /lib/uboot-envtools.sh
. /lib/functions.sh

board=$(board_name)

ubootenv_mtdinfo () {
	UBOOTENV_PART=$(cat /proc/mtd | grep APPSBLENV)
	mtd_dev=$(echo $UBOOTENV_PART | awk '{print $1}' | sed 's/:$//')
	mtd_size=$(echo $UBOOTENV_PART | awk '{print "0x"$2}')
	mtd_erase=$(echo $UBOOTENV_PART | awk '{print "0x"$3}')
	nor_flash=$(find /sys/bus/spi/devices/*/mtd -name ${mtd_dev})

This file has been truncated. show original

You should add a install description to the commit message and some details about how specs.

stas2z · January 22, 2020, 9:57pm

at this moment ive kept stock as a backup system, it can be easy switched modifying one ubootenv var
imo 40Mb (23Mb free) is enuff space to start with

acecilia · March 15, 2020, 3:11pm

@stas2z could you please explain a bit how you managed to flash OpenWRT? Maybe is helpful for the MIRouter 4A, which at the time has no easy way for flashing (Xiaomi Mi Router 4A Gigabit Edition (R4AG/R4A Gigabit): fully supported but requires overwriting SPI flash with programmer)

stas2z · March 21, 2020, 8:38pm

ive already answered similar question here

acecilia · March 21, 2020, 8:50pm

Nice. Yes, agree, the firmwares do not include telnet/ssh. I managed to get a shell on the Xiaomi 4A by using netcat: https://security.stackexchange.com/questions/53345/can-pipe-shell-nc-pipe-achieve-remote-shell

stas2z · March 21, 2020, 10:16pm

sure, netcat is a nice solution, ive used netcat when i tried to upload standalone busybox binary to it
but to use netcat you need to get access to the shell anyway

acecilia · March 21, 2020, 11:47pm

Where did you find a stand-alone busybox?

juppin · March 23, 2020, 12:12am

I assume he built a static busybox with the sdk.

Or from here: https://www.busybox.net/downloads/binaries/1.31.0-defconfig-multiarch-musl/

Xyrma · November 8, 2023, 9:07pm

i am so sorry fo stupid question..... but i cant find any good instruction how to install open wrt on D01 Xiaomi mi mesh....
if it possible can u give me some advice. from what can i start? this is me first time for installing open wrt, but i have not another device for experiments....
with best regards
Young Padawan of open wrt tech )

stas2z · November 9, 2023, 5:24pm

There is no easy way to build and install openwrt to this device. Very bad choise to start with.