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2022-10-22
CentOS7 network.service loaded failed 处理技巧
CentOS7 network.service loaded failed 处理技巧
某一日，用systemctl --failed查看到如下错误信息，但实际上网络是OK的，真奇怪：
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[root@localhost.localdomain media] # systemctl --failedUNIT LOAD ACTIVE SUB DESCRIPTIONnetwork.service loaded failed failed LSB: Bring up /down networkingLOAD = Reflects whether the unit definition was properly loaded.ACTIVE = The high-level unit activation state, i.e. generalization of SUB.SUB = The low-level unit activation state, values depend on unit type .1 loaded units listed. Pass --all to see loaded but inactive units , too.To show all installed unit files use 'systemctl list-unit-files' . |
执行此命令来解决这个问题：
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[root@F1A-SWPE ~] # systemctl enable NetworkManager-wait-online.service |
重启后再次用systemctl --failed查看，问题消失：
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[root@localhost.localdomain ~] # systemctl --failed0 loaded units listed. Pass --all to see loaded but inactive units , too.To show all installed unit files use 'systemctl list-unit-files' . |
解决问题的关键跟/usr/lib/systemd/system/NetworkManager-wait-online.service这个文档有关，其内容如下：
[Unit]
Description=Network Manager Wait Online
Requisite=NetworkManager.service
After=NetworkManager.service
Wants=network.target
Before=network.target network-online.target
[Service]
Type=oneshot
ExecStart=/usr/bin/nm-online -q --timeout=30
[Install]
WantedBy=multi-user.target
有兴趣的同学不妨研究一下这个文档就能明了！！
最后sudo service network restart 解决
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