Pinephone Nethunterpro does not boot: dtb files on boot partition are missing and fdtdir enty in extlinux.conf
the dtb files on boot partition are missing and the fdtdir entry in extlinux.conf too.
workaround: add directory 'dtb-6.1-sunxi64' on boot partition copy 'allwinner' folder from rootfs '/usr/lib/linux-image-6.1-sunxi64/' to 'dtb-6.1-sunxi64' on boot add 'fdtdir /dtb-6.1-sunxi64/' to menu entry at boot/extlinux/extlinux.conf
the extlinux.conf should look like:
default l0
menu title U-Boot menu
prompt 0
timeout 10
label l0
menu label Mobian GNU/Linux 6.1-sunxi64
linux /vmlinuz-6.1-sunxi64
initrd /initrd.img-6.1-sunxi64
fdtdir /dtb-6.1-sunxi64/
append root=UUID=8a21f0bc-4fc7-4c69-894f-5a97ac0b4fa8 consoleblank=0 loglevel=7 ro quiet splash plymouth.ignore-serial-consoles vt.global_cursor_default=0
Now it should boot.