オリジナル投稿者： mayer ,
Beta versions are just that. They have bugs. Never install a Beta version as your main system. If you feel you must install it, put in a secondary hard drive in the optical bay. You may be able to boot in Target mode and wipe the drive. If you are not an experienced user, you should stay away from Beta versions. These versions used to be available only to professionals with the equipment and expertise to evaluate them.