Rebuild Macbook Air - Upgrade to Big Sur

[scottmuc]

Things to do with the existing build

• [x] Create USB stick with latest macOS
• [x] Create credentials for the rebuild
• [x] Backup anything worth keeping

Rebuild steps

• [x] Reboot to load installer
• [ ] 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 and clone this repo
• [x] Run coalesce_this_machine
• [x] Launch and configure 1 Password
• [x] Initialise 1 Password CLI

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)

[scottmuc]

Going to continue with my existing fall credentials for this rebuild. Considering decoupling credential rotation from machine repaving (disk encryption being the only one that must require a machine repave).

[scottmuc]

Boot disk created

[scottmuc]

For some reason Big Sur couldn't installed onto a drive that was encrypted. It wouldn't prompt for the drives pass phrase.

[scottmuc]

This went surprisingly smooth. Not being able to install on an encrypted drive is a bit strange. Perhaps I did something wrong. I can still encrypt the drive post-install. Happy to continue to bring life to this nearly 7 year old laptop.