Rockpi4/dev/Debian

English

    ROCK Pi 4 >  Development >  Build Debian

build:
- Some script files and configuration files for building u-boot, kernel and rootfs.
kernel:
- kernel source code, current version is 4.4
rkbin:
- Prebuilt Rockchip binaries, include first stage loader and ATF(Arm Trustzone Firmware).
rootfs:
- Bootstrap a Debian based rootfs, support architechture armhf and arm64, support Debian Jessie, Stretch and Buster.
u-boot:
- u-boot as the second stage bootloader

Update the source code

The rockchip-bsp will be updated all the time, so you can update the source before building the system image.

cd rockchip-bsp
git checkout master
git fetch origin
git rebase origin/master
git submodule update

Install toolchain from Linaro

wget https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch64-linux-gnu/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
sudo tar xvf gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz  -C /usr/local/
export CROSS_COMPILE=/usr/local/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-
export PATH=/usr/local/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin:$PATH

Check if Linaro toolchain is the default choice:

which aarch64-linux-gnu-gcc
/usr/local/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc

Install other build tools

sudo apt-get install gcc-aarch64-linux-gnu device-tree-compiler libncurses5 libncurses5-dev build-essential libssl-dev mtools
sudo apt-get install bc python dosfstools

If it appears that it cannot be installed. You can try the following method

sudo apt-get install aptitude 
sudo aptitude install bc python dosfstools

Build u-boot

./build/mk-uboot.sh rk3399-rock-pi-4b     #For ROCK Pi 4 Mode B

The generated images will be copied to out/u-boot folder

ls out/u-boot/
idbloader.img  rk3399_loader_v1.12.112.bin  trust.img  uboot.img

Build kernel

Build kernel with default rockchip_linux_defconfig

./build/mk-kernel.sh rk3399-rock-pi-4b    #For ROCK Pi 4 Mode B

Change kernel config(optional)

Optionally, if you want to change the default kernel config

cd kernel
export ARCH=arm64
export CROSS_COMPILE=aarch64-linux-gnu-
make rockchip_linux_defconfig
make menuconfig
make savedefconfig
cp defconfig arch/arm64/configs/rockchip_linux_defconfig
cd ..
./build/mk-kernel.sh rk3399-rock-pi-4b    #For ROCK Pi 4 Mode B

You will get the kernel image and dtb file

ls out/kernel/
Image  rk3399-rock-pi-4b.dtb

Make rootfs image

Check out the rootfs source. The repository is https://github.com/radxa/rk-rootfs-build.git and the branch is debian.

To build 32bit rootfs:

export ARCH=armhf

To build 64bit rootfs:

export ARCH=arm64

Building a base debian system by ubuntu-build-service from linaro.

cd rootfs
sudo apt-get install binfmt-support qemu-user-static cpio gdisk
sudo dpkg -i ubuntu-build-service/packages/*        # ignore the broken dependencies, we will fix it next step
sudo apt-get install -f
RELEASE=buster TARGET=desktop ARCH=arm64 ./mk-base-debian.sh

This will bootstrap a Debian Buster image, you will get a rootfs tarball named linaro-buster-alip-xxxx.tar.gz.

Building the rk-debian rootfs.

RELEASE=buster ARCH=arm64 ./mk-rootfs.sh

Creating the ext4 image(linaro-rootfs.img):

./mk-image.sh

Combine everything into one image

build/mk-image.sh -c rk3399 -b rk3399-rock-pi-4b -t system -r rootfs/linaro-rootfs.img

This will combine u-boot, kernel and rootfs into one image and generate GPT partition table. Output is

out/system.img

Flash the image

For normal users, follow instructions here. You will need the generated out/system.img only.

For developers, flash from USB OTG port, follow instructions here. You will need the flash helper rk3399_loader_xxx.bin and generated out/system.img files.

build deban11 armhf image with a existed image

1. Flash a debian11 arm64 image to a sd card or a emmc module

2. Insert the SD card or emmc that has been burned into the image to the local computer and mount it

radxa@radxa:~$ sudo blkid /dev/sdb2
/dev/sdb2: LABEL="rootfs" UUID="8bf96d05-7c97-42fc-863c-95e3e7603ef4" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="rootfs" PARTUUID="474d4c1f-53da-447c-bab4-334abe0d5753"
radxa@radxa:~$ sudo blkid /dev/sdb1
/dev/sdb1: LABEL_FATBOOT="config" LABEL="config" UUID="4AD5-9369" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="config" PARTUUID="8d24a074-ea49-4d24-a17c-82dd88776fa2"
radxa@radxa:~$ lsblk
... ...
sdb      8:16   1  29.3G  0 disk 
├─sdb1   8:17   1    16M  0 part 
└─sdb2   8:18   1   5.1G  0 part

 radxa@radxa:~$ sudo mount /dev/sdb2 /data2
 radxa@radxa:~$ cd /data2

3. Go to the root file system, back up the boot directory, delete and replace the root file system, and restore the boot directory to the root file system

radxa@radxa:/data2$ sudo cp -r ./boot ~/
radxa@radxa:/data2$ sudo rm -rf *
radxa@radxa:/data2$ sudo cp -av ~/pro/rootfs/* ./
radxa@radxa:/data2$ sudo cp -av ~/boot/* ./boot/

radxa@radxa:/data2$ sudo cat ./etc/fstab
# UNCONFIGURED FSTAB FOR BASE SYSTEM

//Replace the uuid in the preceding section
radxa@radxa:/data2$ sudo cat ./etc/fstab
# UNCONFIGURED FSTAB FOR BASE SYSTEM
UUID=8bf96d05-7c97-42fc-863c-95e3e7603ef4       /       ext4    defaults        0       1
UUID=4AD5-9369  /config vfat    defaults,x-systemd.automount    0       2

4. Umount the sd card or the emmc, then boot up

radxa@radxa:/data2$ cd
radxa@radxa:~$ sudo umount /data2

5. After the system start, Check whether rootfs is armhf (32-bit)

radxa@rock-4c-plus:~$ sudo apt-get install file -y 
radxa@rock-4c-plus:~$ file /bin/ls
/bin/ls: ELF 32-bit LSB pie executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, Buildd
radxa@rock-4c-plus:~$

6. Check whether the tools are 32-bit. If not, uninstall the tool and reinstall it

FAQs

1.For system image built from rockchip-bsp, what is the user name and password?

The user name is linaro and the password is linaro.

2.How to build on RK3399 Fuhai u-boot and kernel?

U-boot:

./build/mk-uboot.sh rk3399-fuhai

Kernel:

./build/mk-kernel.sh rk3399-fuhai

Troubleshooting

Check ROCK Pi 4 FAQs first, if it doesn't help, start a new post on the forum https://forum.radxa.com/c/dev