MacOS Recovery Mode Reference and CheatSheet

Mac Intel Chip Boot Modes

• recovery mode
• internet recovery

Recovery Mode

Command + R

Internet Recovery

Option + Command + R

Start Up Manager

This mode allow you to pick your boot location. For example if you have multiple OS's installed.

Start In Safe Mode

Hold shift

Create Bootable USB From Recovery Mode

1. boot into recovery mode Command + R
2. click disk utility
3. ❗ View > Show All Devices
4. click on the device in "External"
5. earse and formate to "Mac OS Extended(Journalized)
6. quick disk utility
7. click on install OS <your-machine-os>
8. walk through steps
9. choose install location (our formated USB)
10. ✨ Done

Erase Disk from CLI

Show Currently Mounted Disks

diskutil list

Erase Disk

| cli code | format type | | JHFS+ | MacOS Extened Journaled | | HFS+ | MacOs Extened | | FAT32 | MS Dos Fat | | ExFAT | ExFAT |

diskutil erasedisk <file-system> <disk-name> <disk-identifier>

diskutil erasedisk JHFS+ <disk-name>

Reference