Lightening bolt image on startup in MBP
Hi there,
I just got a lightening bolt image on startup in my new MBP with mavericks installed (last night). Any ideas what this is?
MacBook Pro with Retina display
Your Mac started up in Target Disk mode. This mode allows you to use your MacBook's hard drive as an external drive for a different Mac, which is connected to the MacBook by Thunderbolt or FireWire. You don't have to worry about it