Using Buildroot to build a minimal embedded OS which will deploy into Raspberry Pi 4 to do some task with Wifi Connection - Camera - Qt Application with Capacitve Touch Screen.
- Raspberry Pi 4
- SD Reader
- SD Card (32GB)
- Ubuntu (Host build / Storage >30GB / Virtual / Real)
Buildroot is a generic build system hence in order to build Linux for Raspberry Pi I need to configure. In order to configure buildroot for my board I start the configuration utility by entering
make menuconfig
This will allow you to configure the buildroot for your target architecture. By going through each submenu, you can choose suitable option which you want. But in this time, I use an alternative config from Buildroot. It provides config files for some popular boards, these default config files do all the basic configuration for me. I use this command below to list all.
make list-defconfigs
I apply default setting for Raspberry Pi 4 (64 bit), just type
make raspberrypi4_64_defconfig
The first thing I need to enable root login and set the root password (This is an important factor for accessing through SSH connection). After that, I will list some requirement need to set up for embeddedOS
- Qt5 (All packages of Qt5)
- OpenSSH
- Graphic Driver (VDR4-VC3)
- Raspberry Pi TS(Touch Screen) in linux-menuconfig
When finishing needed config, I use make command line for going to the final step before it generates some folders of booting section.
make
The output folder will be generated which contains some important file.
