This section describes the optional use of UUIDs instead of device names to identify file system devices in the boot loader file and the /etc/fstab file.
Section 3.1, Naming Devices with udev
Section 3.2, Understanding UUIDs
Section 3.3, Using UUIDs in the Boot Loader and /etc/fstab File (x86)
Section 3.4, Using UUIDs in the Boot Loader and /etc/fstab File (IA64)
Section 3.5, Additional Information