RZ-G/RZ-G2 BSP Porting Debian

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SoC: All

Specification

This guide describes how to make Debian rootfs to work on RZ/G2L serial products.

(Notes: GPU and Codec were not incluided yet, will update later)

Target Debian OS Version: bullseye11.0

Target reference board: RZ/G2L,/G2LC,/G2UL SMARC

Host PC Environment: Ubuntu20.04

Debian Filesystem Building

Install QEMU

Run below command on Host Ubuntu PC

sudo apt-get install qemu qemu-user-static

Download Required Files

sudo apt-get install binfmt-support debootstrap

Download debian package 
$ sudo su - root

# mkdir ./debian

# cd ./debian

# debootstrap --arch=arm64 --foreign bullseye root http://deb.debian.org/debian/

### Notes: If you want to build Debian 10, you can use below command

# debootstrap --arch=arm64 --foreign buster root http://deb.debian.org/debian/

This step requires network connection, if failed, please try more times.

If this step is successful, you can see below messages

Debian package download

Rootfs configuration

Initialize rootfs 
# cp /usr/bin/qemu-arm-static ./root/usr/bin

# DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C chroot root debootstrap/debootstrap --second-stage

If this step is successful, you can see below contents

debian init

Additional Configuration
# cp -rf /etc/ssl root/etc             ###copy certification from ubuntu pc to debian

# chroot root

#

# apt-get update

# apt-get install vim openssh-server

# apt install net-tools iputils-ping bash bzip2

# vi /etc/ssh/sshd_config

change

#PermitRootLogin prohibit-password

to

PermitRootLogin yes

# adduser user ### input password according to the hint

# passwd root ### change root password

# echo "auto eth0" > /etc/network/interfaces.d/eth0

# echo "iface eth0 inet dhcp" >> /etc/network/interfaces.d/eth0

# vi /etc/ssh/sshd_config

# exit

Compress rootfs

# cd root

# tar -cjf debian_bullseye_rootfs.tar.bz2 ./*

Use debian_bullseye_rootfs.tar.bz2 to make sd card image (ignore)

This rootfs should be able to work on any VLP kernel

Debian11