How to Enter/Edit Boot Flags in Clover To boot OS X with common alternative boot options such as Verbose Mode, Safe Mode, Single User Mode, and Without Caches, simply hit spacebar on the Clover Boot Screen. For testing, you can enter alternate flags at boot time as follows: 1. At Clover Boot Screen click/highlight Options and hit Enter 2. Highlight Boot Args: and hit Enter 3. Move arrow keys to end of line, type desired flag, and hit Enter 4. Press Escape to return to the initial Clover Boot Screen Note, this will not permanently edit /EFI/CLOVER/config.plist. If desired, edit the config.plist by permanently adding to the Boot/arguments section.