How to forget the root user password in Linux

Source: Internet
Author: User
Article Title: How to forget the root user password in Linux. 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.

GRUB: On the boot loader menu, type [e] to enter the editing mode. You will face a list of pilot projects. Find the following output sentence lines:

Kernel/vmlinuz-2.4.18-0.4 ro root =/dev/hda2

Press the arrow key until the line is highlighted, and then press [e]. Now you can add a single entry at the end of the text to tell GRUB to guide the single-user Linux mode. Press the [Enter] key to make the editing result take effect.

You will be taken with the edit mode screen. From here, press and GRUB will guide the single-user Linux mode. After loading, you will face a shell prompt similar to the following:

Sh-2.05 #

Now, you can change the root command and type:

Bash # passwd root

You will be asked to retype the password for verification. After the password is changed, you can enter reboot at the prompt to reboot. Then, you can log on as the root user as usual.

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.