How to Install macOS From a USB Drive

I will tell you How to install macOS from a USB drive

Creating a bootable USB installer for macOS is a fundamental task for users who want to perform a clean installation of the operating system, solve boot problems or upgrade to a new version. This procedure requires certain technical knowledge and specific tools. Below, the process will be detailed step by step, using clear and concise language.

How to install macOS from a USB drive

Absolutely! Here is a revised version of the previous answer, with a more technical and formal tone, and focused on providing precise and concise guidance:

Detailed Guide to Creating a Bootable macOS Installer on a USB Drive

Creating a bootable macOS installer on a USB drive is a common practice for performing clean installs, upgrades, or troubleshooting boot issues. This process requires some technical knowledge and specific tools. Below is a detailed and formal guide to accomplish this task.

Previous requirements

USB drive: With a minimum capacity of 16 GB, formatted in GPT.
Mac compatible: With a version of macOS compatible with the version to be installed.
Internet connection: To download the macOS installer.
Terminal app: Included in all versions of macOS.

Procedure

Download the macOS Installer:

From the App Store: Purchase or download the desired version of macOS.
From the Apple website: Download the installer for your Mac.

Create the Installation Unit:

Connect the USB drive: Insert the USB drive into an available USB port.
Open Terminal: Access the Terminal application (Applications > Utilities > Terminal).
Run the command: Copy and paste the following command into Terminal, replacing /ruta/al/instalador.appwith the exact path of the installer file and /dev/disk2the ID of your USB drive (you can verify this in Disk Utility):

Bash

sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia --volume /Volumes/MiUnidadUSB

Use code with caution.
- Press Enter and provide your administrator password when prompted.

Check the Installation Unit:

Restart your Mac: Restart your Mac and hold down the Option (Alt) key during startup.
Select the USB drive: From the boot menu, select the USB drive you just created.
Start Installation: If everything is correct, the macOS installation process will begin.

Additional considerations

Data Security: It is recommended to perform a full backup of your data before starting the process.
Compatibility: Make sure the version of macOS you're installing is compatible with your Mac's hardware.
USB Drive Identification: Please carefully check your USB drive ID in Disk Utility to avoid accidentally formatting an internal hard drive.
Customization: For a customized installation, explore the advanced options available during the installation process.

By following these steps and considering the additional recommendations, you will be able to successfully create a bootable macOS installer. This installer will allow you to perform a clean installation, update your system, or fix boot issues.

Note: This guide has been prepared with the latest version of macOS in mind. For older versions, there may be slight variations in commands or user interfaces.

Need more help? Feel free to consult Apple's official documentation or search specialized forums for more detailed information or to troubleshoot specific issues.

Is there anything you'd like us to cover in particular, such as creating an installer from Windows or troubleshooting common issues?

Keywords: macOS, bootable installer, USB drive, Terminal, Disk Utility, clean install, upgrade.

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