Do you want to create macOS Big Sur bootable USB flash drive to fresh install it on your Mac? Well, it is fairly easy and here we will guide you through the whole process.
Steps to Create macOS Big Sur Bootable USB Flash Drive
Before you proceed, please make sure you have backed up your system. Secondly, do not forget to first check out if your Mac is supported by macOS Big Sur or not, because if it is not, then there is no use of creating a bootable USB drive.
Step by Step Tutorial
Step # 1: First download the macOS Big Sur using the direct download link.
Step # 2: Acquire a USB Drive with atleast 16GB space.
Step # 3: Now insert the USB Flash drive to your Mac.
Step # 4: Launch Disk Utility and Erase the drive, and leave its name as “Untitled”. The drive should the set to APFS with GUID Partition Map.
Step # 5: Once it is erased, close Disk Utility. Launch Terminal and execute the following command:
sudo /Applications/Install\ macOS\ 10.15\ Beta.app/Contents/Resources/createinstallmedia –volume /Volumes/Untitled –applicationpath /Applications/Install\ macOS\ 11\ Beta.app
Step # 6: Enter your administrator password to start the process.
Step # 7: Once the process is completed, you will get message in terminal.
That’s it. You have successfully created macOS Big Sur Bootable USB Flash Installer drive. Now you can use it to fresh install macOS Big Sur on your compatible Mac without Apple’s Developer account.