How Linux enters rescue mode

Usage version: Centos6.5

What the rescue model does:

You can change the root password;

Recover hard disk, file system operation;

When the system starts, it can only be started by rescue mode;

The steps to start the rescue mode are as follows:

1, the first boot into the BIOS settings (each computer into the bios of different methods according to their own computer access), boot boot sequence for CD-ROM priority to start CD drive using the keypad of the +-number adjustment up and down order;

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2, restart the system after entering the installation boot menu, the up and down keys moved to the Rescue Install system rescue installation Systems ;

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3. Select the language and keep the default中文版

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4, select the keyboard type, keep the default us

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5, whether to start the network, you need to choose according to your actual situation, if you need to copy data through the network, select Yes, here we choose No;

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6, enter into the rescue interface, select Continue

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7, the system is mounted under/mnt/sysimage if you want to run the Chroot/mnt/sysimage command in the root environment

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8, three kinds of options: Shell into the command line mode; FAKD is the diagnostic mode; reboot restart the computer; we choose the shell here.

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9. Enter the shell command line and the prompt is bash-4.1#

ls/mnt/sysimage/displays files that are mounted as root directories

Execute chroot/mnt/sysimage/ to move the files under the/mnt/sysimage/directory to the root directory;

Command after prompt is sh-4.1#

LS is displayed as the root directory of the file;

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10, in the sh-4.1# mode needs to exit first exit, back to bash-4.1# can reboot restart the system;

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This article is from the "Model Student's Learning blog" blog, please be sure to keep this source http://8802265.blog.51cto.com/8792265/1619994

How Linux enters rescue mode