红帽全球峰会第 19 章 启用 kdump
这部分提供了为所有安装的内核或特定内核启用和启动 kdump 服务所需的信息和步骤。
19.1. 为所有安装的内核启用 kdump
复制链接链接已复制到粘贴板!
您可以为机器上安装的所有内核启用并启动 kdump 服务。
先决条件
- 管理员特权
流程
将
crashkernel=auto命令行参数添加到所有安装的内核中：/grubby --update-kernel=ALL --args="crashkernel=auto"
# /grubby --update-kernel=ALL --args="crashkernel=auto"Copy to Clipboard Copied! Toggle word wrap Toggle overflow 启用
kdump服务。systemctl enable --now kdump.service
# systemctl enable --now kdump.serviceCopy to Clipboard Copied! Toggle word wrap Toggle overflow
验证
检查
kdump服务是否正在运行：systemctl status kdump.service
# systemctl status kdump.service ○ kdump.service - Crash recovery kernel arming Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled; vendor preset: disabled) Active: active (live)Copy to Clipboard Copied! Toggle word wrap Toggle overflow
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