No boot partition on new Odroid HC4 image

Troubleshooting
5

Would be nice if some documentatio were added to the download page of the image, like in armbian page Odroid HC4 – Armbian.

Important: To be able to boot clean Armbian mainline based u-boot / kernel experiences, you need to remove incompatible Petitboot loader that is shipped with the board.

Try one of the following methods:
Bootloader Bypass Method

This is now the preferred method. It is easier, and be performed without a display via SSH

Install an SD Card with a fresh Armbian image
Flip device upside down
With a tool, press and hold down the black button.
Continue holding button and plug in power to device
Login to console or SSH and perform follow normal setup procedures
Verify system can access SPI FLASH device and Erase
Reboot

odroidhc4:~:# ls -ltr /dev/mtd*
crw------- 1 root root 90, 0 Nov 6 21:38 /dev/mtd0
brw-rw---- 1 root disk 31, 0 Nov 6 21:38 /dev/mtdblock0
crw------- 1 root root 90, 1 Nov 6 21:38 /dev/mtd0ro
odroidhc4:~:# flash_erase /dev/mtd0 0 0
Erasing 4 Kibyte @ fff000 – 100 % complete
odroidhc4:~:#

>
> Petitboot Console Method
>
> Attach the device to a display and keyboard.  Power on.  Petitboot will load
>
> From the Petitboot menu, go for “Exit to shell” and these commands to remove the Petitboot:
>
> ```text
# flash_eraseall /dev/mtd0
# flash_eraseall /dev/mtd1
# flash_eraseall /dev/mtd2
# flash_eraseall /dev/mtd3

This will make your SPI flash memory empty and would start from SD on next boot.

In case you want to put Petitboot back to the board, user those instructions.