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Gpt show: /dev/disk0: Pri GPT at sector 1 Gpt show: /dev/disk0: Suspicious MBR at sector 0 Then, when trying to format the disk i got an error message telling me that disk utility "c ouldn’t unmount disk".
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There I clicked on the the partition tab, chose options and then GUID. If I understand correctly, GUID and GPT are the same, right?Įven though the disk seamed to be formated correctly, I booted the computer to recovery mode and tried to format the main disk once again. I then took a look on my disk using disc utility and from what I can read the disk is formated as an GUID-partition disk. In EFI-based systems Windows can only be installed on GPT partition disks (roughly translated from Swedish). When I tried to formate the bootcamp partition to NTFS I got an error message telling me that Windows cannot be installed to this disk. I then chose to boot from the USB and the installation process started. I then restarted the computer manually while holding down the C button. Once booted into Windows, the computer couldn't find the USB that boot camp made. First I made a bootable USB from my ISO file with Windows and let boot camp make the partition and restart the computer. I have tried using bootcamp to run Windows 8.1 on a partition of the drive. The disk I'm using is a new "Samsung 850 EVO Series 250 GB" SSD. So I got a 2011 MacBook Pro, running Yosemite version 10.10.2.
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