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。
The initrd is also useful as a non-persistent root file system mounted in a RAM disk for embedded Linux systems.
initrd对于在嵌入式系统中加载到RAM磁盘里的非持久性根文件系统来说也非常有用。
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。
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