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Converting a volume of an MBR SSD to GUID via terminal using usb mac installer


Laxman

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I did that, deleted, created new volume there but windows cant install because it has a mbr partition table , on efi systems windows can only be installed on gpt disks. I guess windows reads my hfs as mbr whenbooted from uefi. Help please

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I should not be MBR if you have formatted the drive to GPT as you had stated earlier.

You should delete the partition from OS X and let formatted to Extended Journal.

 

====To dual boot (UEFI Only)===============================

- First create 2 partitions Extended Journal when installing OS X. Make sure to jot down the size so you won't wipe out the wrong partition when you install Windows on it later.

Hint: don't make both the same size

- Use Disk Utility to prepare a Mac OS X Extended partitions (don’t ever use Fat32, Disk Utility will mess up your drive)

- After installing OS X, everything all setup. Then install Windows

- Create a FAT32 usb drive, extract Windows 10 64-bit iso there (done on a Windows system)

- Boot to Win10 usb drive, select custom install, locate the partition that is not OS X, delete it. Then select it (unallocated space) format it to NTFS, install Windows there.

- Windows will automatically boots back to Windows. Install all drivers...etc.

- Now to fix the boot option

- Go to BIOS, create boot option. Browse to /EFI/Clover/Cloverx64.efi, give it a Name. Now move the Clover boot entry to top.

- Save and reboot. Now you'll see the option to boot Windows or OS X from the Clover GUI.

 

To fix the time in Windows, launch regedit

navigate to 

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]

create a DWORD (32 bit) value, name it RealTimeIsUniversal. Set the value to 1.

Exit 

Boot to OSX, then reboot to Windows. You should see time is correctly sync'd up.

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Appreciate the detailed guide so much. I tried booting in and out of UEFI modes and  both ways windows identified it as MBR partition. I clearly formatted the second partition, named as windows and have attempted several times but still the same error.  

I beg your pardon, I just used disk utility to format both drives into Extended journaled and attempted windows installation. Only  thing I lack is the usb formatted in windows as Fat 32 coz it was made with bootcamp with win 10. is that the problem?

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Make sure it's also GUID (GPT) and not MBR when you format and create the partitions. I too, format USB to Fat32 and export the ISO file into the USB. Boots to UEFI fine and install without any issue.

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 "depending on the model the trackpad kext might need to be updated to a compatible version as it might cause a kernel panic."

 

which kext?, and I am on an e7240. is there an updated kext for sierra? I looked but cldnt find. 

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