add a note about how to install this with dd.


(mrg)

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$NetBSD: MESSAGE,v 1.1 2021/05/09 08:31:18 mrg Exp $

Examples command to install U-Boot to an empty SD card:

# dd if=${LOCALBASE}/share/u-boot/sopine-baseboard/u-boot-sunxi-with-spl.bin seek=16 of=/dev/rld0d

You should make sure that the space is otherwise cleared of data, as old
images may fool the boot loader paths.

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