Rescue Linux Installation in RHEL / CENTOS / Fedora

Rescuing a Linux system is an easier task. There are several aspects of rescuing a Linux system.
 
Here we are going to see how to rescue an installed Linux system when the GRUB is deleted.

Enter Single user mode in Linux / RHEL / CENTOS / Fedora

If you are using GRUB bootloader

• Select the particular kernel to boot in (use up and down arrows in the GRUB splash screen)
• Now you will find an option "press a to append..". So press the key "a".
• Now press the space key to add at the bottom of that line.
• Append the word the "s" or "single" to the end of the kernel line.
• Press Enter

Change / Hack the Root password in Linux / RHEL / CENTOS / Fedora

Forgot root password

Suppose you want to get into a Linux system. You know nothing about the existing user's or their passwords. You have no idea about these things. Then what will you do??
The only thing you know that the user root exists. So we must find a way to get the root's password.

NTFS support in Linux (RHEL / CENTOS)

NTFS file system is not supported in RHEL 5 or 6. How do you I enable NTFS support?

To enable NTFS support we need to do a couple of things.

First of all enable the EPEL repo. Click here to learn How to enable the EPEL repo.
Then install the package "ntfs-3g" using yum.

Enabling EPEL repo in RHEL / CENTOS

EPEL - Extra Packages for Enterprise Linux.

What is Extra Packages for Enterprise Linux (or EPEL)?
Extra Packages for Enterprise Linux (or EPEL) is a Fedora Special Interest Group that creates, maintains, and manages a high quality set of additional packages for Enterprise Linux, including, but not limited to, Red Hat Enterprise Linux (RHEL), CentOS and Scientific Linux (SL).
EPEL packages are usually based on their Fedora counterparts and will never conflict with or replace packages in the base Enterprise Linux distributions. EPEL uses much of the same infrastructure as Fedora, including buildsystem, bugzilla instance, updates manager, mirror manager and more.