Formatting a MBR drive to GUIDE in Recovery Mode?


hi!

i've totally screwed up:

, have macbook pro wiped boot-drive formatted in master boot record, mbr. means can't install fresh version of osx on drive, requires guid. partition tab of drive in disk utility greyed-out , can't re-format drive in guid.

way re-format drive guid using terminal or other tools available in recovery mode?

other possible solutions?

help,

bjorn
 



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