Most of us install Fedora 15 from the Fedora 15 Live CD. The live CD, makes it easy to install the Operating System to your computer’s hard disk, but it does not have the feature as in the normal DVD to rescue your computer.
To enable rescue, without downloading the whole 3.3 GB Fedora 15 DVD, do the following steps:
1. Look for and download the Fedora-15-x86_64-netinst.iso from http://fedoraproject.org. This file is just about 199 MB.
2. Burn it to a CD.
3. Boot your system, and you will be able to see the “Rescue Installed System” option.
4. Follow the instructions.