CentOS_7 进入单用户
进入单用户一、在启动系统时选择内核界面按“上|下键或空格键等键” 取消倒计时
https://s1.运维网.com/images/blog/201901/20/086fe94b68515aeefae29d3dea42cdd7.png
二、在此界面按“e”
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三、进入此界面，找到“Linux16”那行
四、把“ro”改成“rw”并输入“init=/sysroot/bin/sh”如图所示
五、按“Ctrl+X”快捷键进入单用户
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六、到此页面则表示进入单用户成功
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七、运行“chroot /sysroot”命令进行切根
八、切完根之后就可以进行管理操作啦
https://s1.运维网.com/images/blog/201901/20/29b74ea52942ae1791a9355b3627b17f.png
退出单用户
一、 确认管理操作完成后，输入“exit”退出
https://s1.运维网.com/images/blog/201901/20/a5bf9a1c28b52a4805c47ef27ec61dd3.png
二、再输入“reboot”进行重启
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