Troubleshooting The Boot Process

• The boot process logs all its messages into /var/log/messages
• Possibly also in /var/log/dmesg
• Look in those files for error messages, and try to analyze them or look them up on the Internet.
• Sometimes you'll notice a problem resulting from kernel configuration - reconfigure, recompile from scratch (make clean...), re-install and try again.
• If you see that all modules fail to load with unresolved symbols, make sure you compiled and installed the modules.

Originally written by guy keren