In order to get a better grasp on the Ubuntu’s boot process, and the boot process of Linux in general, I have created a mind map of the process. Eventually I plan to trace the scripts run by the init sequence (Upstart) and gdm (Gnome Display Manager) log in process. Please do point out any inaccuracies:
Related Pages:
Inside the Linux Boot Process
The Linux Boot Process
A Detailed Look at the Boot Process