V2EX umount

Umount

释义 Definition

umount:在类 Unix 系统中用于“卸载(文件系统)”的命令/术语,表示把某个已挂载的磁盘分区、U 盘、网络共享等从目录树中安全移除(解除挂载)。在日常语境里也常泛指“卸载/取消挂载”。(也存在其他用法,但最常见的是该系统命令含义。)

发音 Pronunciation

/jumant/

例句 Examples

Please umount the USB drive before you unplug it.
请在拔掉 U 盘之前先卸载它。

If the system reports “device is busy,” you may need to stop the process using the directory and then umount the filesystem safely.
如果系统提示“设备正忙”,你可能需要先停止正在使用该目录的进程,然后再安全地卸载该文件系统。

词源 Etymology

umount 通常被认为是 unmount 的缩写形式:前缀 un- 表示“取消/反向”,mount 在计算机语境中指“挂载(把设备/文件系统接入到目录树)”。在 Unix/Linux 命令传统中,常见这种为了简短而形成的命令名(如 umount 对应 unmount 的概念)。

相关词 Related Words

文学与作品 Literary Works

  • umount(8) Linux man page》(系统手册页,权威用法说明)
  • William E. Shotts, The Linux Command Line(讲解挂载/卸载等常用命令)
  • Evi Nemeth et al., UNIX and Linux System Administration Handbook(系统管理经典书,涵盖 mount/umount 与文件系统管理)
  • Michael Kerrisk, The Linux Programming Interface(涉及文件系统、挂载命名空间等相关概念,常出现 umount/相关接口)
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