Finally, a brief account of the Bootloader, Linux kernel and embedded file system.
最后简单介绍了Bootloader、Linux内核和嵌入式文件系统。
The embedded file system shall not only support the functions of a normal file system, but also satisfy the special requirements of the embedded systems.
嵌入式文件系统不仅要具有一般文件系统的功能，还要满足嵌入式系统的特殊要求。
Because there is no hard drive in many embedded systems based on Linux, the initrd also serves as the permanent root file system.
由于在很多基于Linux的嵌入式系统上没有硬盘，因此initrd也会作为这种系统上的永久根文件系统使用。
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