Dual Boot Systems with Ubuntu Michael Frey Engineering Manager OEM Services, Canonical

2 | Internal use only Agenda What is Dual Boot? Why do you want it? Current / Popular Implementations Canonical Implementation OS-Chooser Windows / Ubuntu Integration Recovery solution Example Dual Boot product (Ubuntu Light)

3 | Internal use only What is a Dual Boot System? 2 OS's on system One primary and one secondary OS Typically Windows and Linux Ability to easily choose between the two

4 | Internal use only Why do you want it? Quick access to Web and Media No need to wait for Windows to boot Simplified User Interface Share media between Windows and Ubuntu

5 | Internal use only Popular ways to achieve Dual Boot Replace MBR with Grub Add entry to Windows BCD Second power button Custom BIOS code to load secondary OS

6 | Internal use only Problems with current solutions No flexible installation method Can break with Windows upgrade No recovery Text based OS chooser

7 | Internal use only Canonical Implementation Secondary OS without BIOS intervention Still use Windows MBR/BCD (no modification) Use active partition scheme Use of GRUB2 on secondary partition Windows program to automatically set active partition Ability to chain-load to Windows

8 | Internal use only Partition layout scheme MBR/BCD Windows Partitions Ubuntu Light OS Chooser

9 | Internal use only OS Chooser Lives on secondary partition Ability to chainload to Windows BCD Graphical not text based Can set default OS OS Chooser MBR / BCD

10 | Internal use only OS Chooser

11 | Internal use only Windows Integration

12 | Internal use only Windows Integration

13 | Internal use only Ubuntu Light Control Panel

14 | Internal use only Recovery Automatic partition detection Auto re-size of Windows partition Restore factory state Automatic detection of Windows

15 | Internal use only Recovery

16 | Internal use only Ubuntu Light

17 | Internal use only Conclusion Fast access to Web and Media Flexible partition based solution Graphical OS-Chooser Easy Recovery Solution No MBR/BCD modification needed No BIOS modification needed

18 | Internal use only Thank you for your time!