The document provides an overview of Mac troubleshooting techniques. It begins with an overview of the Mac boot process and then discusses options for troubleshooting including restarting with different boot options like the recovery partition. It also covers technical topics like NVRAM and SMC, what they control, and symptoms of issues. The document concludes with recommendations to learn more about Unix, useful keyboard shortcuts, and resources for resetting NVRAM, SMC, and learning terminal commands.

1. MAC TROUBLESHOOTING
BE YOUR OWN GENIUS

2. VICTORIA
MASON
WHO AM I & WHAT AM
I DOING HERE? NO, REALLY.

3. BACK IT UP.

4. CENTRALIZE &
MINIMIZE
DATA MANAGEMENT

5. Boot Process:
Power on
BootROM initializes: POST
EFI selects OS
Control passes to Boot Loader: boot.efi
Boot.efi loads Kernel Environment: loads kernel drivers: loads Kernel extensions
Control passes to Kernel
Kernel initializes
/sbin/launchd is ran

6. BOOT OPTIONS
YOUR WISH IS MY ⌘
‣ ⌘ R
‣ ⌘ V
‣ ⌘ S
‣ alt/option
‣ Shift
‣ T

8. LETS GET TECHNICAL
NVRAM:
NON VOLATILE RANDOM ACCESS MEMORY
▸ Symptoms include:
speaker volume
screen resolution
startup disk selection
recent kernel panic

9. LETS GET TECHNICAL
SMC :
SYSTEM MANAGEMENT CONTROLLER
▸ Symptoms Include: everything
▸ Desktop vs. Notebook

10. KERNEL PANIC
DON’T PANIC, IT’S:

11. CONSOLE

12. DIVING DEEPER
CONSOLE

13. DIGGING DEEPER
DOWNSIDES OF CONSOLE
▸ The only information readily available is from what occurs
while console is open
▸ Digging deeper requires creating a system diagnostic
report
https://help.apple.com/console/mac/10.12/index.html?
localePath=en.lproj#/cnsl4f3fc2df

14. SINGLE
USER
MODE

15. STUDY UP.
Stay Current.

16. RESOURCES
▸ Unix for the Beginning Mage
http://unixmages.com/ufbm.pdf
▸ Useful Keyboard Shortcuts
http://www.cultofmac.com/317935/top-10-mac-keyboard-shortcuts/
▸ How to reset NVRAM
https://support.apple.com/en-us/HT204063
▸ How to reset SMC
https://support.apple.com/en-us/HT201295
▸ Terminal Cheatsheet for Mac
https://github.com/0nn0/terminal-mac-cheatsheet
▸ Little Book about OS Development
https://littleosbook.github.io