: Use Disk Utility in the installer environment to format your target drive as APFS with a GUID Partition Map.
: This is the final major update for macOS Catalina, including critical security patches and fixes for Wi-Fi and iCloud Drive syncing issues. olarila catalina 10157 download work
: After flashing, you must replace the EFI folder on the USB drive with one that matches your processor architecture (e.g., OpenCore or Clover folders for Skylake, Coffee Lake, etc.) from the Olarila EFI Folder repository Troubleshooting Common Issues "This copy of the install macOS application is damaged" : Use Disk Utility in the installer environment