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Contents SECTION 1: The Boot Process 4 SECTION 2: The Boot Process Overview 6 SECTION 3: Troubleshooting Big Picture 8 SECTION 4: Boot Process Details 10 SECTION 5: Troubleshooting Techniques 39 SECTION 6: Boot Process Labs 49 Copying all or part of this manual, or distributing such copies, is strictly prohibited. To report suspected copying, please call 1-800-PIRATES Novell, Inc. Copyright 2012-ATT LIVE-1-HARDCOPY PERMITTED. NO OTHER PRINTING, COPYING, OR DISTRIBUTION ALLOWED. Table of Contents SUSE Advanced Troubleshooting: The Boot Process Troubleshooting Section 01: The Boot Process The purpose of this course is to understand the boot process, learn troubleshooting techniques that will help you solve boot related issues, and apply those techniques in the lab. Copying all or part of this manual, or distributing such copies, is strictly prohibited. To report suspected copying, please call 1-800-PIRATES 4 Novell, Inc. Copyright 2012-ATT LIVE-1-HARDCOPY PERMITTED. NO OTHER PRINTING, COPYING, OR DISTRIBUTION ALLOWED. SUSE Advanced Troubleshooting: The Boot Process Objectives • Boot Process Overview • Troubleshooting Big Picture • Boot Process Details Copying all or part of this manual, or distributing such copies, is strictly prohibited. To report suspected copying, please call 1-800-PIRATES 5 Novell, Inc. Copyright 2012-ATT LIVE-1-HARDCOPY PERMITTED. NO OTHER PRINTING, COPYING, OR DISTRIBUTION ALLOWED. SUSE Advanced Troubleshooting: The Boot Process The Boot Process Section 02: The Boot Process Overview The purpose of this course is to understand the boot process, learn troubleshooting techniques that will help you solve boot related issues, and apply those techniques in the lab. Copying all or part of this manual, or distributing such copies, is strictly prohibited. To report suspected copying, please call 1-800-PIRATES 6 Novell, Inc. Copyright 2012-ATT LIVE-1-HARDCOPY PERMITTED. NO OTHER PRINTING, COPYING, OR DISTRIBUTION ALLOWED. SUSE Advanced Troubleshooting: The Boot Process Graphical boot process overview BIOS /etc/init.d/boot.d/S* boot /boot/grub/stage1MBR /etc/init.d/boot.local /boot/grub/stage2 /etc/init.d/rc[prev_run_lvl].d/K* init rc /etc/init.d/rc[cur_run_lvl].d/S* Initial Ramdisk Kernel mingetty init xdm The boot process is linear by nature. Understanding the general process of how a server boots will help to narrow down boot related problems. This graphical overview of the boot process will be used throughout the presentation to indicate which topic will be covered and when. The topic to be covered will be highlighted.