V2EX dmesg

Dmesg

定义 Definition

dmesg:Linux/Unix 系统中的命令,用来查看内核环形缓冲区(kernel ring buffer)里的消息,常用于排查启动过程、驱动加载、硬件识别、设备错误等问题。(也可通过参数进行过滤、分页、显示时间戳等)

发音 Pronunciation (IPA)

/di ms di/

例句 Examples

I ran dmesg to check why the USB drive wasn’t detected.
我运行了 dmesg 来查看为什么系统没有识别到这只 USB 盘。

After the kernel update, dmesg | grep -i error revealed repeated driver faults and helped pinpoint the failing module.
内核更新后,我用 dmesg | grep -i error 查到反复出现的驱动故障,从而定位到出问题的内核模块。

词源 Etymology

dmesg 通常被解释为 “diagnostic message(s)”(诊断信息)的缩写,指读取并显示内核输出的诊断/日志信息;在很多系统文档中也会提到它与 内核消息缓冲区 的历史命名习惯有关。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Linux Command Line(William E. Shotts Jr.):在系统诊断与查看内核消息的章节中常提及 dmesg
  • UNIX and Linux System Administration Handbook:用于硬件/驱动与启动问题排查的工具清单中包含 dmesg
  • Linux Pocket Guide(Daniel J. Barrett):在常用系统管理命令条目中收录 dmesg
  • How Linux Works(Brian Ward):讲解内核与启动流程、故障排查时会引用 dmesg 的输出思路
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