CHAPTER 3. Booting Linux
Exam objectives in this chapter
■ GRUB
■ Runlevels
■ Troubleshooting Boot Issues
Introduction
The Linux boot process starts when the system is powered up and the hardware is checked by the system BIOS and then determines what device (for example, floppy disk drive, hard disk drive, CD/DVD drive) will be used to boot the system. This first sector of the boot device contains the Linux bootloading program (for example, LILO, GRUB, NTLOADER), although we will describe the Grand Unified Bootloader (GRUB) program, which we will use throughout this book. The system BIOS loads GRUB into memory and executes the program and system control is now transferred to the bootloader. The various processes are described in the following sections. ...
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