An external drive that you can use as an installer for macOS Catalina is a handy thing to have. If you have multple Macs to upgrade, it’s a lot more efficient to plug in the USB installer drive. Sep 25, 2018 The macOS Mojave installer software is just over 6GB, so you need a USB external drive that can hold that much data. The drive can be a thumb drive, hard drive, or SSD. If you want to use a thumb.
With a bootable Ubuntu USB stick, you can:
Bootable Drive Mac Os
- Install or upgrade Ubuntu, even on a Mac
- Test out the Ubuntu desktop experience without touching your PC configuration
- 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. We’re going to cover the process in the next few steps.
Boot Disk Macos Sierra
Apple hardware considerations
Bootable Drive Mac Os High Sierra
There are a few additional considerations when booting the USB stick on Apple hardware. This is because Apple’s ‘Startup Manager’, summoned by holding the Option/alt (⌥) key when booting, won’t detect the USB stick without a specific partition table and layout. We’ll cover this in a later step.