Boot into Ubuntu on a borrowed machine or from an internet cafe Use tools installed by default on the USB stick to repair or fix a broken configuration Creating a bootable USB stick is very simple, especially if you’re going to use the USB stick with a generic Windows or Linux PC. How to Boot a Mac with the macOS Big Sur USB Install Drive. Feb 07, 2021 The main reason why it is so hard to create a Windows USB stick from a Mac has to do with file size limits on the FAT32 file system(4 GB). The latest Windows 10 install has a file with 5GB, so if you try to copy the install files to a USB stick, it will fail because one file is over 4GB size.
These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.
Part 4: Boot Mac from macOS USB Drive for Installation. Now remove the USB drive and insert it into the Mac computer. To boot from the disk, you need to hold down the option key when you hear the boot chime. This will take you to the Startup Disk Manager, where you should be able to see the USB drive. The simplest way to create a boot USB drive is to download DiskMaker X and use it to create your drive. Generally, the latest version supports only the latest version of macOS; if you want to install something older than macOS High Sierra, check the list of older versions and download one that’s compatible with your chosen operating system. Boot into Ubuntu on a borrowed machine or from an internet cafe Use tools installed by default on the USB stick to repair or fix a broken configuration Creating a bootable USB stick is very simple, especially if you’re going to use the USB stick with a generic Windows or Linux PC. How to Boot a Mac with the macOS Big Sur USB Install Drive. Booting a Mac with a boot disk is pretty straight forward in most cases.: Connect the macOS Big Sur beta install drive to the Mac; Restart the Mac if it’s already started up, otherwise boot it up as usual.
MyVolumein these commands with the name of your volume.
* If your Mac is using macOS Sierra or earlier, include the
--applicationpath argument and installer path, similar to the way this is done in the command for El Capitan.
After typing the command:
Yto confirm that you want to erase the volume, then press Return. Terminal shows the progress as the volume is erased.
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
For more information about the
createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:
A bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model.