How to reset Linux password if you forget it

How to reset the Linux password if you forget it: first hit "e" on the kernel; then change the content on the linux16 line to "rw rd.break"; then enter the system's emergency rescue mode. And enter passwd and other commands in sequence; finally restart the service.

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People who are new to Linux may be at a loss if they forget the root password. I want to retrieve my root password, but I don’t know how. In fact, you only need a few simple steps to reset your root password (I don’t know how to retrieve it)

1. After booting, type

e on the kernel, and then edit Option

#2. In the linux16 line, change the content in the red box to

rw rd.break

According to the prompts, use the key combination

CTRL X to enter the password modification

3. Enter the emergency rescue mode of the system

4. Enter the following commands in sequence

# chroot /sysroot //进入系统的根目录
# passwd     //重置密码
# touch /.autorelabel  //创建文件,让系统重新启动时能够识别修改
# exit   退出chroot模式
# reboot //重启系统

##5. Restarting is a bit slow, you need to wait patiently for a while, and you can use it after restarting Log in with the password you just reset

6. Change the password

If you haven’t forgotten your password, change it:

# passwd //之后会提示输入新密码 输入之后修改成功！

Change the password of a general user as root:

# passwd username(要更改密码的用户名)

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