[BPI-R4] How to get an openwrt image to eMMC?

Banana Pi Router design BPI-R4(MT7988)
1

Hello! I have been building my own version of openwrt for a while and now I have been using that with the SD image flashed to… an SD.

Now, when I build I get all of these output files:

mt7981-ram-ddr3-bl2.bin
mt7981-ram-ddr4-bl2.bin
mt7986-ram-ddr3-bl2.bin
mt7986-ram-ddr4-bl2.bin
mt7988-ram-comb-bl2.bin
openwrt-mediatek-filogic-bananapi_bpi-r4-emmc-bl31-uboot.fip
openwrt-mediatek-filogic-bananapi_bpi-r4-emmc-preloader.bin
openwrt-mediatek-filogic-bananapi_bpi-r4-initramfs-recovery.itb
openwrt-mediatek-filogic-bananapi_bpi-r4.manifest
openwrt-mediatek-filogic-bananapi_bpi-r4-sdcard.img.gz
openwrt-mediatek-filogic-bananapi_bpi-r4-snand-bl31-uboot.fip
openwrt-mediatek-filogic-bananapi_bpi-r4-snand-preloader.bin
openwrt-mediatek-filogic-bananapi_bpi-r4-squashfs-sysupgrade.itb

How can I install the same build first on the NAND and then on the eMMC?

Thank you!

2

Afair it is designed to boot the sdcard one first and then install to nand from it,then boot this and install emmc

3

Yeah, I tried to use the process in Getting Started BPI-R4 | BananaPi Docs assuming is the same but then I get to:

root@OpenWrt:/mnt# mtd erase /dev/mtd0
Could not open mtd device: /dev/mtd0
Could not open mtd device: /dev/mtd0
root@OpenWrt:/mnt# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00200000 00020000 "bl2"
mtd1: 07e00000 00020000 "ubi"

Any clue on what am I missing?

4

Do not use the bpi way here…mainline openwrt is installed using uboot menu