This article describes how to make Linux SD card which can boot system.
Please refer to 《Build Kernel》 and 《Build Ubuntu Rfs》 instructions to compile partition images, or you can download here to obtain a unified firmware.
Process of Making Linux Boot Card
using scripts to make
you need to use Linux dd command to write the startup files into the SD card, the steps are as follows:
see 《Build Ubuntu Rfs》
build/mk-image.sh -c rk3328 -t system -r rk-rootfs-build/linaro-rootfs.img
Run the following command to write the unified firmware system.img generated above into the SD card:
build/flash_tool.sh -c rk3328 -d /dev/sdb -p system -i out/system.img
using dd command to make
Here you also need to insert the SD card to the computer
Run the following command to write the unified firmware system.img into the SD card:
pv -tpreb out/system.img | sudo dd of=/dev/sdb seek=0 conv=notrunc && sync
You can also run the following commands to write a partitioned image into an SD card
sudo dd if=./out/u-boot/rk3328_loader_ddr786_v1.06.243.bin of=/dev/sdb seek=0 conv=sync,fsync
sudo dd if=./out/u-boot/idbloader.img of=/dev/sdb seek=64 conv=sync,fsync
sudo dd if=./out/u-boot/uboot.img of=/dev/sdb seek=16384 conv=sync,fsync
sudo dd if=./out/u-boot/trust.img of=/dev/sdb seek=24576 conv=sync,fsync
sudo dd if=./out/boot.img of=/dev/sdb seek=32768 conv=sync,fsync
sudo dd if=./out/linaro-rootfs.img of=/dev/sdb seek=262144 conv=sync,fsync
using graphical interface tools DDWin for windows
If you are windows users, you can choose DDWin tool DDWin for download
DDWin is a tool that has the same features as the command dd and provides the functionality of a graphical interface that makes it easy to write images. Insert the SD card into your computer, then open DDWin,Note win10 may need to use administrator privileges to run
Click the "Choose disk"button, As shown, it will automatically select the drive letter in which the SD card locates.
Then click the "Choose file"button, then the window will pop up a dialog box to choose some files, select the image to be writtend, and click "OK" button.
Finally, click the "Restore" button, when warning window appears, just click "Yes", and then burn the selected unified firmware into the SD card
After the progress bar finished, it means that the SD boot card has been made successfully.
Start the System
Insert the SD card into the ROC-RK3328-CC board and power on. The first thing you need to start in the serial console is to press Enter key to enter the configuration mode, run the following commands to make gpt partition table for SD card, the system will restart again and automatically load the rootfs file system.
gpt write mmc 1 $partitions