when i try to instal the mountain lion it appears that it can not be installed
I bought the mountain lion and i can not install it, it ask me a recuperation system.
Because there is no recovery system . what i should do. i have an external dis of 1tk iomega and back up everything there. could you help me. what I shoul do . . .
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upgrading system -OTHER, OS X Mountain Lion (10.8.2), now I have Mac OS X 10.7.5