May 6, 2021May 6, 2021 [email protected] macOS Download macOS https://support.apple.com/en-us/HT211683 How-to-get-old-versions-of-macOS-Apple-Support-5_6_2021-5_32_20-PMDownload Use the ‘createinstallmedia’ command in Terminal https://support.apple.com/en-us/HT201372 How-to-create-a-bootable-installer-for-macOS-Apple-Support-5_6_2021-5_33_29-PMDownload