1. download and sync code

For 2024.02.x.xml manifest file

$ mkdir linux_sdk
$ cd linux_sdk
$ repo init -u git@github.com:jordonwu/buildroot_sdk-manifest.git -b main -m 2024.02.x.xml
$ repo sync -j8

2. build image

For rock 5b board build

$ cd linux_sdk
$ ./build_rock5b.sh

when build done, you will get below files list:

# ls output_rock5b/images/ -alh
total 250M
drwxr-xr-x 2 soc soc 4.0K 3月  14 16:39 .
drwxrwxr-x 6 soc soc 4.0K 3月  14 16:39 ..
-rwxr-xr-x 1 soc soc  275 3月  14 16:16 boot.scr
-rw-r--r-- 1 soc soc  16M 3月  14 16:39 boot.vfat
-rw-r--r-- 1 soc soc  30M 3月  14 16:36 Image
-rw-r--r-- 1 soc soc 9.9M 3月  14 16:36 Image.gz
-rw-r--r-- 1 soc soc  11M 3月  14 16:39 image.itb
-rw-r--r-- 1 soc soc 409K 3月  14 16:16 rk3588_bl31_v1.40.elf
-rw-r--r-- 1 soc soc  72K 3月  14 16:16 rk3588_ddr_lp4_2112MHz_lp5_2736MHz_v1.12.bin
-rwxr-xr-x 1 soc soc 246K 3月  14 16:36 rk3588-rock-5b.dtb
-rw-r--r-- 1 soc soc  746 3月  14 16:39 rock5b.its
-rw-r--r-- 1 soc soc 250M 3月  14 16:39 rootfs.ext2
lrwxrwxrwx 1 soc soc   11 3月  14 16:39 rootfs.ext4 -> rootfs.ext2
-rw-r--r-- 1 soc soc  53M 3月  14 16:39 rootfs.tar
-rw-r--r-- 1 soc soc 276M 3月  14 16:39 sdcard.img
-rw-r--r-- 1 soc soc 836K 3月  14 16:22 u-boot.bin
-rw-r--r-- 1 soc soc 9.1M 3月  14 16:22 u-boot-rockchip.bin

3. flash sdcard.img to TF Card

1. you can using balenaEtcher to flash sdcard.img to your TF card (recommended)
1. or you can using below linux dd command to flash sdcard.img to your TF card

$ sudo dd if=sdcard.img of=/dev/sd<partition> bs=1M conv=fsync  status=progress