1.重启linux 按下e键会看见
-
找到以
linux16
开头的那一行:linux16 /vmlinuz-3.10.0-862.el7.x86_64 root=UUID=... ro crashkernel=auto rhgb quiet LANG=zh_CN.UTF-8
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把光标移动到行尾,删除
rhgb quiet
,然后添加rd.break
。最终看起来应该像这样:linux16 /vmlinuz-3.10.0-862.el7.x86_64 root=UUID=... ro crashkernel=auto rd.break LANG=zh_C
mount -o remount,rw /sysroot
passwd root 输入两次就会更改
exit
reboot