10
The Boot Loader GRUB2
This chapter describes how to congure GRUB2 (Grand Unied Bootloader), the boot
loader used in openSUSE®. It is a successor of the traditional GRUB boot loader —
now called “GRUB Legacy” — which is described in Chapter 9, The Boot Loader
GRUB (page 155). GRUB2 has become the default boot loader in openSUSE® since
version 12.2. A special YaST module is available for conguring major GRUB2 settings.
If you are not familiar with the subject of booting in Linux, read the initial sections of
Chapter 9, The Boot Loader GRUB (page 155) to acquire some background information.
The boot procedure as a whole is outlined in Chapter 7, Booting a Linux Sys-
tem (page 127).
10.1 Main Differences from GRUB
Legacy
• The conguration is stored in different les. The conguration syntax has changed.
• Partition numbers start at 1 (instead of 0 as in GRUB Legacy).
• More le-systems are supported.
• GRUB2 can directly read les stored on LVM or RAID devices.
• The user interface can be translated, including menu entry names.
• GRUB2 includes mechanism for loading modules to support specic features, such
as lesystems etc.
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