7.14.3. Upgrading Boot Loader Configuration
If the existing boot loader was installed by a Linux distribution, the installation system can modify it to load the new Fedora system. To update the existing Linux boot loader, select
Update boot loader configuration
. This is the default behavior when you upgrade an existing Fedora or Red Hat Linux installation.
Install a new boot loader as part of an upgrade process only if you are certain you want to replace the existing boot loader. If you install a new boot loader, you may not be able to boot other operating systems on the same machine until you have configured the new boot loader. Select
Create new boot loader configuration
to remove the existing boot loader and install GRUB.