3.1.4 Building Root File System

In this section use the buildroot as the build system to build the rootfs. By considering its simplicity, efficiency and easiness to generate embedded linux systems through cross-compilation the user can opt for buildroot framework. Microchip’s linux4sam website provide the source code for the buildroot and another external microchip repository which contain necessary defconfig file through which the user is benefited in configuring the buildroot to meet the requirement.