How to install macOS from a USB

# Preparation

## Get list all the mounted devices available in your system

diskutil list

## Use the following syntax to format the drive:

diskutil erasedisk FILE_SYSTEM DISK_NAME DISK_IDENTIFIER

The file system option depends on your preference. 

The syntax is:.

• macOS Extended Journaled(JHFS+) - JHFS+
• macOS Extended (HFS+) - HFS+
• MS-DOS FAT - FAT32
• ExFAT - ExFAT

# Download macOS

• macOS Monterey
• macOS Big Sur
• macOS Catalina
• macOS Mojave
• macOS High Sierra

# Copy on USB

## Run in terminal

Big Sur

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Catalina
sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Mojave

sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

High Sierra

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

El Capitan
sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app

# Restart

To install from USB you need to restart your laptop and hold the "Option" key.