V2EX rootfs

Rootfs

释义 Definition

rootfs 指“根文件系统”(root filesystem):在 Linux/类 Unix 系统中,作为系统启动后挂载在根目录 / 上的文件系统,包含最基本的目录结构与关键程序/库(如 /bin/sbin/etc/lib 等)。在嵌入式 Linux 或 initramfs 场景里,rootfs 也常指启动阶段使用的那套最小文件系统。

发音 Pronunciation (IPA)

/rutfs/

例句 Examples

The device boots, then mounts the rootfs as read-only.
设备启动后,把 rootfs 以只读方式挂载。

After loading the kernel, the initramfs provides a temporary rootfs until the real disk root filesystem is mounted.
内核加载完成后,initramfs 会提供一个临时的 rootfs,直到真正的磁盘根文件系统被挂载。

词源 Etymology

rootfs 是技术缩写:root(根目录 /)+ fs(filesystem 的缩写,文件系统)。在 Linux 文档与源码语境中常用这种简写来指代“根文件系统”。

相关词 Related Words

文学/著作中的用例 Literary / Notable Works

  • Linux Kernel Development(Robert Love)讨论启动流程与早期用户空间时常涉及 root filesystem / rootfs 概念。
  • Embedded Linux Primer(Christopher Hallinan)在嵌入式系统启动、initramfs/ramdisk 章节中常出现 rootfs。
  • Linux From Scratch(Gerard Beekmans)构建基础系统与目录布局时会提到根文件系统(rootfs/root filesystem)的组织方式。
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