V2EX ext2

Ext2

定义 Definition

ext2第二代扩展文件系统(Second Extended Filesystem),是一种常见于早期 Linux 系统的磁盘文件系统格式。它的特点是结构清晰、性能稳定,但不带日志(journaling)功能;因此在异常断电或系统崩溃后,可能需要较长时间进行文件系统检查与修复。

发音 Pronunciation

/ksttu/

例句 Examples

I formatted the USB drive as ext2 for compatibility with an old Linux system.
我把 U 盘格式化为 ext2,以便兼容一台旧的 Linux 系统。

Because ext2 has no journaling, the server ran a full filesystem check after the sudden power outage.
由于 ext2 没有日志功能,服务器在突然断电后进行了完整的文件系统检查。

词源 Etymology

ext2 来自缩写:ext(extended,扩展的)+ 2(第二代/第二版)。它是对早期 ext 文件系统的改进版本,后来又发展出带日志功能的 ext3 和更现代的 ext4

相关词 Related Words

文学与作品 Literary Works

  • The Linux Programming Interface(Michael Kerrisk)在讲解 Linux 文件系统与系统调用时会涉及 ext2 等常见文件系统。
  • Understanding the Linux Kernel(Daniel P. Bovet, Marco Cesati)讨论内核与文件系统实现时常提到 ext2 的设计与数据结构。
  • Linux Kernel Development(Robert Love)在内核与存储/文件系统相关章节中可能出现 ext2 的示例或对比说明。
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