BPI-R4 expand overlay (user volume size)

1. Flash an sdcard
2. Install on NAND
3. Boot on NAND
4. Flash eMMC from NAND
5. From NAND run parted liked before to extend production to 100%
6. Boot on eMMC
7. Download sysupgrade
8. Flash sysupgrade

1. Boot from nand
2. Install cfdisk
3. cfdisk /dev/mmcblk0
4. resize free space
5. reboot from emmc
6. flash sysupgrade

https://forum.banana-pi.org/t/bpi-r4-how-to-resize-overlay-of-emmc/18078/4