该映像不仅包含 Linux 内核和根文件系统，而且还包含典型的供 GRUB 和 LILO 使用的引导区。

The image contains not only the Linux kernel and root file system but also the typical boot sector used by GRUB and LILO.

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日志缓冲区——为存储更改数据的前后映像而分配的内存。

Log Buffer - Memory allocated for storing before and after image of changed data.

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该映像不仅包括Linux内核映像和引导文件系统，而且还包括用来启动Linux的引导区。

This image contains not only the Linux kernel image and root file system but also the boot sector that is used to launch Linux.

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