I needed to modify kernel configuration for my ROCK Pi N10. I used the procedure described in https://wiki.radxa.com/RockpiN10/dev/Debian .
However, even though the image that I have downloaded from https://dl.radxa.com/rockpin10/images/debian/rockpin10a_debian_buster_xfce4_arm64_20200710_0315-gpt.img.gz is “Debian buster” for arm64, I can’t rebuild it.
When I repeat the procedure described in “Make rootfs image” section of https://wiki.radxa.com/RockpiN10/dev/Debian, I have only the following scripts in rootfs:
mk-base-debian.sh mk-image.sh mk-rootfs-buster.sh mk-rootfs.sh mk-rootfs-stretch-arm64.sh mk-rootfs-stretch.sh
the rootfs/ubuntu-build-service directory contains only the following subdirectories:
buster-desktop-armhf packages scripts stretch-base-arm64 stretch-base-armhf stretch-desktop-arm64 stretch-desktop-armhf
So it seems that the provided environment does not enable building 64-bit version of Debain buster.
TIA & Regards,
Wojtek