V2EX initramfs

Initramfs

释义 Definition(中文)

initramfs 是 Linux 启动过程中的一种机制:把一个临时的根文件系统(通常是压缩的 cpio 存档)加载到内存里,在真正挂载磁盘上的根文件系统之前运行早期用户态程序与驱动加载(例如加载模块、解密磁盘、组 RAID/LVM 等)。

发音 Pronunciation(IPA)

/ntrmfz/

例句 Examples

The system dropped into initramfs after a failed boot.
系统启动失败后进入了 initramfs 紧急环境。

In a full-disk encryption setup, the initramfs loads the cryptographic modules and prompts for a passphrase before mounting the real root filesystem.
在全盘加密的配置中,initramfs 会先加载加密相关模块并提示输入口令,然后才挂载真正的根文件系统。

词源 Etymology(中文)

initramfs = init(初始化/启动阶段)+ RAM(内存)+ fs(filesystem,文件系统)。它在 Linux 早期启动流程中逐渐取代了较旧的 initrd(initial ramdisk)思路,常见于现代发行版的内核与引导加载器配合中。

相关词 Related Words

文学与著作中的用例 Literary Works(出现来源)

  • Linux Kernel Documentation(内核文档中多处涉及 initramfs、early userspace、rootfs 等)
  • Robert Love, Linux Kernel Development(讨论启动流程与早期用户空间时常提及 initramfs/initrd)
  • Daniel P. Bovet & Marco Cesati, Understanding the Linux Kernel(涉及引导与根文件系统初始化相关概念)
  • William Shotts, The Linux Command Line(在系统启动/救援相关内容与实践中可能提到 initramfs 及其故障排查)
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