7、Fedora 31系统管理：systemd单元与网络管理全解析

Fedora 31系统管理：systemd单元与网络管理全解析

1. systemd单元状态查询

要了解systemd单元的详细状态，可使用 systemctl status 命令，后跟单元名称。例如：

# systemctl status systemd-machine-id-commit.service

执行该命令后，会显示单元的详细信息，如加载状态、活动状态、启动条件等。以下是示例输出：

◉ systemd-machine-id-commit.service - Commit a transient
machine-id on disk
   Loaded: loaded (/usr/lib/systemd/system/systemd-machine-id-
commit.service; static; vendor preset: disabled)
   Active: inactive (dead)
Condition: start condition failed at Thu 2019-02-14 15:27:47
EST; 1h 14min ago
           ConditionPathIsMountPoint=/etc/machine-id was not
met
     Docs: man:systemd-machine-id-commit.service(8)

2. 识别和配置默认目标

在