Can you please try to build and program image to emmc by following instruction?
Instruction
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Please clone the latest code from github(https://github.com/garywangcn/bpi-r2_lede/tree/bpi-r2-on-lede-v1) and then follow below steps to build/program both rootfs and uImage :
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Run make menuconfig in root directory of bpi-r2_lede
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Enable squashfs: Target Images ->squashfs
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Rebuild lede by executing command: make
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The root.squashfs and uImage-mt7623n-bananapi-bpi-r2 will be programmed to EMMC via tftp, they are located at build_dir/target…/linux-mediatek_32/
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Copy above images to /tftpboot/(please enable tftp service first)
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Boot the board to Uboot prompt, configure the IP address/netmask/gatewayip/serverip, make sure the R2 board is able to access tftp server.
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Run below command to program uImage-mt7623n-bananapi-bpi-r2:
tftp 84000000 uImage-mt7623n-bananapi-bpi-r2
mmc dev 0
mmc write 84000000 1000 6000
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Run below command to program root.squashfs to EMMC:
tftp 84000000 root.squashfs
mmc dev 0
mmc write 84000000 20A00 6000
10.Run command: boot
Please note that the first reboot will take a few minutes to sync file system.