I am trying to update to OSX Maverick on my Mac, but i cant install it since it says "Disk cannot be used to start the computer", when i choose Machintosh HD as installation disk. I searched around a bit and it seems that resizing the Machintosh HD partition would fix this problem, but when i try that it gives me the error "MediaKit reports no such partition". I'm assuming this has something to do with me dual booting OSX and Ubuntu. I have tried to resize it with iPartition, but that doesn't work either. I hope some of you folks can help me with this matter!
Model: ATA Hitachi HTS54503 (scsi) Disk /dev/sda: 625142448s Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 40s 409639s 409600s fat32 EFI system partition boot 2 409640s 546755263s 546345624s hfs+ Customer 3 546756608s 616933375s 70176768s ext4 4 616933376s 625141759s 8208384s linux-swap(v1)