Customizing the Linux kernel configuration ------------------------------------------ The Linux kernel configuration can be customized just like xref:busybox-custom[BusyBox] and xref:uclibc-custom[uClibc] using +make linux-menuconfig+. Make sure you have enabled the kernel build in +make menuconfig+ first. Once done, run +make+ to (re)build everything. If you want to use an existing config file for Linux, then see xref:env-vars[].