A
boot loader is a small program that reads
and launches the operating system. Fedora Core uses the
GRUB boot loader by default. If you have
multiple operating systems, the boot loader determines which one to
boot, usually by offering a menu.
You may have a boot loader installed on your system already. An
operating system may install its own preferred boot loader, or you
may have installed a third-party boot loader.If your boot loader
does not recognize Linux partitions, you may not be able to boot
Fedora Core. Use GRUB as your boot loader to
boot Linux and most other operating systems. Follow the directions
in this section to install GRUB.
![[Warning]](./stylesheet-images/warning.png) | Installing GRUB |
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If you install GRUB, it may overwrite your existing boot loader.
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The following screen displays boot loader configuration options.
7.1. Keeping Your Existing Boot Loader Settings
By default, the installation program installs GRUB in the
master boot record, or MBR, of the device for the root
file system. To change or decline installation of a new boot
loader, select the Change boot loader
button. The dialog shown in
Figure 7.2, “Change Boot Loader” allows you to avoid
installing or changing your existing boot loader settings.
![[Important]](./stylesheet-images/important.png) | Boot Loader Required |
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Your computer must have GRUB or another boot loader installed
in order to start, unless you create a separate startup
disk to boot from.
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