Linux Password Reset

Article Title: linux Password resetting. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

When we forget the root password of the linux system and fail to use SSH, there is only one solution, that is, to reset the password using the terminal method (of course, if you have enough "black ", you can also try). Let's take RH9 as an example to give a simple description:

1. After the system is started, when the grub screen appears, use the up and down keys to select the one that you usually start linux, and then press the e key

2. Use the up and down keys again to select the one you usually start linux (similar to kernel/boot mlinuz-2.4.18-14 ro root = LABEL =/), and then press the e key

3. Modify the command line you see and add single. The result is as follows:

Kernel/boot mlinuz-2.4.18-14 single ro root = LABEL =/single

4. Press enter to return, and then press the B key to start, you can directly enter the linux Command Line

5. Use the passwd command to change the password