# CentOS重置密码

## 1.重启系统，开机引导界面按 `E`键

![image-20221008092004913](https://pic.chjina.com/2022/10/08/image-20221008092004913.png)

## 2.进入内核编辑界面

![image-20221008092236063](https://pic.chjina.com/2022/10/08/image-20221008092236063.png)

## 3.按方向“↓”键，往下翻到 linux16 这一行，然后在最后加上 `rd.break`

![image-20221008092938274](https://pic.chjina.com/2022/10/08/image-20221008092938274.png)

## 4.`ctrl + x`保存，将进入 Initramfs 的debug 命令模式

![image-20221008093119723](https://pic.chjina.com/2022/10/08/image-20221008093119723.png)

## 5.输入`mount -o remount,rw /sysroot/` 为/sysroot提供读写权限

![image-20221008093740450](https://pic.chjina.com/2022/10/08/image-20221008093740450.png)

## 6.切换至chroot模式

![image-20221008094020967](https://pic.chjina.com/2022/10/08/image-20221008094020967.png)

## 7.输入 `passwd root` 重置root账户的密码

![image-20221008094155253](https://pic.chjina.com/2022/10/08/image-20221008094155253.png)

## 8.输入两遍新的密码，注：输入的时候屏幕不显示字符，

![image-20221008094450877](https://pic.chjina.com/2022/10/08/image-20221008094450877.png)

## 9.执行 `touch /.autorelabel`命令

![image-20221008094718870](https://pic.chjina.com/2022/10/08/image-20221008094718870.png)

## 10.输入exit 退出chroot模式

![image-20221008094814789](https://pic.chjina.com/2022/10/08/image-20221008094814789.png)

## 11.输入exit 推出Initramfs模式，会自动重启,输入新的密码就可以正常登录了

![image-20221008094841220](https://pic.chjina.com/2022/10/08/image-20221008094841220.png)

## 12.完整操作流程

![image-20221008094903681](https://pic.chjina.com/2022/10/08/image-20221008094903681.png)

## 重启后，输入新的密码就可以登录系统。

引用：

{% embed url="<https://blog.csdn.net/weixin_52270081/article/details/126029470>" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.chjina.com/it-zhi-shi-ku/xi-tong-pei-zhi-he-you-hua/linux/centos/centos-zhong-zhi-mi-ma.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.