Enter single-user mode

PS: Red font is an important part, look carefully

First, what is single-user mode?

Single-user or system is not fully operational, only some programs run, this can not be telnet to the Linux system.

Second, why use single-user mode?

Single-user is entered as root, when the root user has full access to the system, can repair the system at the same time, can also be at any time to destroy the system.

Simply forget the root password, you can enter the single-user mode to modify.

Third, how to enter the single-user mode?

1. Open the Linux system and press any key;

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2. I have upgraded the operating system, select the latest kernel. Press E to enter edit mode;

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3. Select kernel, press E to enter edit mode;

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4. After kernel, enter 1, s, single can, for simple I input 1, press ENTER;

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5. Press B to restart the system;

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6. Single-user mode log in as root;

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Four, close the boot progress bar

[Email protected] ~]# vim/etc/grub.conf #编辑grub. conf file

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Without modifying the previous look:

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What to look like after you modify it:

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This article is from the Chen. "Blog, be sure to keep this provenance http://chenxiaojian.blog.51cto.com/9345444/1619541

Enter single-user mode