Have Lion on an external HD, and a piece of software is playing up on this imac so wanted to boot into lion.
When I select the Lion external HD as bootup disk it just comes up with a barrier symbol on the screen (circle with line across it). Does that mean because my machine shipped with ML, it won't boot Lion?
Thanks
When I select the Lion external HD as bootup disk it just comes up with a barrier symbol on the screen (circle with line across it). Does that mean because my machine shipped with ML, it won't boot Lion?
Thanks