构成一个Linux系统所需的bootlader（u-boot)、内核及busybox等程序被放在这

个目录下。

里面有原始的源码及补丁，这些补丁是对这些代码所做的全部修改的集合。可以按照书中步骤逐渐修改，也可以直接使用这些补丁。可以利用这个目录下的源码构造出一个最小的Linux系统。-Constitute a Linux system required bootlader (u- boot), the kernel and the busybox is placed on this program

A directory.There are the original source and patches, these patches is all you have done to the code modify collection.Can be modified according to the steps in the book gradually, also can directly use the patches.Can make use of the source in the directory constructed a minimum Linux system.