Macos Big Sur Iso 2021 May 2026

Copy and paste this entire block into Terminal. It creates the ISO on your Desktop:

# Set variables
INSTALLER_PATH="/Applications/Install macOS Big Sur.app"
if [ ! -d "$INSTALLER_PATH" ]; then
  echo "Installer not found. Download it first."
  exit 1
fi
Big Sur (macOS 11, released November 2020) was a major visual and architectural overhaul. By 2021, it was still being refined (11.2, 11.3, 11.4, etc.). Reasons people seek an ISO: macos big sur iso 2021


hdiutil convert ~/Desktop/BigSur.dmg -format UDTO -o ~/Desktop/BigSur.iso Copy and paste this entire block into Terminal