A USB thumb drive or any other external drive formatted as macOS Extended, with storage capacity of at least 14 GB.What’s Needed to Create Bootable USB for Mac?īefore you start, you need to keep the following things handy: If you want to know how to create a bootable USB to install macOS Big Sur, Catalina, Mojave, and High Sierra, then this post is for you. You can use this bootable USB macOS installer to perform a clean install of macOS, install macOS from USB on a separate volume of your Mac drive, or in case your Mac encounters OS issues. It also doesn’t matter if the disk is connected via USB, Thunderbolt, or Firewire.If you plan to install macOS on multiple Mac systems and don’t want to download the installer multiple times, then you can create a bootable installer. Whether you want to format a hard drive, solid state drive (SSD), USB Flash drive, microSD card or any other type of disk. On the other hand, if you plan on using the disk between your Mac and Windows PC, you can format it to a filesystem compatible to both. However, you should know a drive formatted to be entirely compatible with the Mac filesystem is more recommended and necessary for use with Time Machine and making bootable Mac OS X disks.
That is because Mac can easily read other filesystem formats including those of Windows like MSDOS, FAT, FAT32, exFAT, and NTFS formats. Though should you plug one into a Mac, it will generally read and work. Most generic computer drives come preformatted for use on Windows PCs and are not compatible with Mac OS X out of the box. But before we get down to that, here is some interesting fact you ought to know. If you are experiencing such ‘confusion,’ we are going to walk you through how to format a hard drive for a Mac OS X computer. Coming from Windows to macOS can be somewhat confusing, even on the little things like formatting a hard drive, USB flash drive, or SSD. Admittedly, the Mac OS X platform is fundamentally different from the Windows platform.
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