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8.5.3. Booting Your Computer in Rescue Mode

You may boot a command-line Linux system from an installation disc without actually installing Fedora on the computer. This enables you to use the utilities and functions of a running Linux system to modify or repair already installed operating systems.
To load the rescue system with the installation disk or USB drive, choose Rescue a Fedora system from the Troubleshooting submenu in the boot menu, or use the inst.rescue boot option.
Specify the language, keyboard layout and network settings for the rescue system with the screens that follow. The final setup screen configures access to the existing system on your computer.
By default, rescue mode attaches an existing operating system to the rescue system under the directory /mnt/sysimage/.