Rebuild Macbook Air - Spring 2021

[scottmuc]

Yay for Repaving!

As much as possible is documented inline in this issue template. In case of problems you may find help by viewing all the previous repave issues. Have fun!

Things to do with the existing build

• [x] Create USB stick with latest macOS

  Instructions

  • Format a USB (> 16GB) stick and name it UNTITLED
  • Fetch the latest version of macos from the App Store
  • Run the following

  $ sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/UNTITLED --nointeraction
  Password:
  Erasing disk: 0%... 10%... 20%... 30%... 100%
  Copying to disk: 0%... 10%... 20%... 30%... 40%... 50%... 60%... 70%... 80%... 90%... 100%
  Making disk bootable...
  Install media now available at "/Volumes/Install macOS Big Sur"

• [x] Create credentials for the rebuild

  Instructions

  Run create-repave-secrets with an argument that follows the naming convention of:

  machine.<month name>.air

• [x] Backup anything worth keeping

  Instructions

  Generally, this means look at the following directories for things that I might want to carry over to the fresh install or possibly consider saving to a cloud service:

  • Desktop
  • Documents
  • Downloads

Rebuild steps

• [x] Reboot to load installer
• [x] Use Disk Utility to wipe existing partition and make a new one (new name, new encryption key)
• [x] Install the OS

Post OS install steps

• [x] Install git, clone this repo, and run coalese_this_machine

  Instructions

  git # this will trigger the XCode installer which brings git along with it
  mkdir ~/workspace
  git clone https://github.com/scottmuc/infrastructure.git ~/workspace/infrastructure
  ~/workspace/infrastructure/homedirs/osx/coalesce_this_machine

• [x] Launch and configure 1 Password

• [x] Initialise 1 Password CLI

• [x] Map capslock to control

• [x] Launch shiftit and follow all the accessiblity setting instructions

note to speed things up, some of the steps above can be done while coalese_this_machine is running.

Done When

• [x] Make a tiny DNS change and run terraform
• [x] Make a signed commit mentioning this issue (exercises gpg_op)
• [x] Be able to push the commit (exercises ssh_op_agent)
• [x] Log into GitHub in Brave (exercises 1 Password browser extension)
• [x] Old keys and credentials are deleted (GitHub and 1Password)

[scottmuc]

~/workspace/infrastructure ? dig TXT graffiti.scottmuc.com +short
"Macbook air repaved on Christmas day of 2020!"
"Macbook air repaved on March 10th 2021"

[scottmuc]

• [ ] need to update the issue template at least

[scottmuc]

Unfortunately, didn't get around to improving the template. :-(