Posted 19 July 2014 - 10:54 PM
last problem to solve for me: I want to boot Yosemite or OS X with Clover. Both OS are on the same hard disk which is formatted as GUID. Yosemite is OS X Extended (partition 2) and Windows NTFS (partition 3). Partition 1 is EFI.
I tried several things without solving this problem. The NTFS.efi (?) is inside the driver64 folder. Yosemite starts fine but if I want to start windows, after a short time the message "a disk read error occurred" appears.
So can somebody help me, please? What I have to do to solve this?
Posted 20 July 2014 - 12:37 AM
as it's a GPT Parition .. you will need to follow a guide of installing windows 7 on a UEFI Parition
there is tons of guides here you will need to search
Posted 21 July 2014 - 06:00 AM
I followed this guide:
/edit: Sorry that I have to disturb you again, but I don't get it I tried several guides but Windows 8.1 does not want to start.
This is my current configuration, GUID, OS X has Mac OS Extended Journaled, Untitled (Windows 8.1) has NTFS, both OS on my SSD. EFI partition is active set by Windows 8.1
image-7.jpeg 135.67KB 5 downloads
This is my folder structure in the EFI partition of my SSD
image-6.jpeg 108.84KB 4 downloads
If I start My system, I can choose following devices to start
image-2.jpeg 80.06KB 5 downloads
I'll take SSD (M4) and has following options to start.
image-5.jpeg 73.46KB 3 downloads
If I choose the one option of the picture above, I get this error
image-4.jpeg 84.2KB 4 downloads
If I choose following option, After some time with following icon I get this error.
image.jpeg 67.08KB 3 downloads
image-3.jpeg 28.95KB 4 downloads
image-8.jpeg 145.69KB 4 downloads
Please I need your help, I despair
Posted 25 July 2014 - 07:52 AM
No one? Copying bootx64 file to /EFI/Microsoft/Boot and renamed it "bootmgfw.efi" does not solve this problem..
I want to install OS X one the first partition, Windows 8.1 on the second partition. Clover should be install in EFI partition of disk 1 (SSD). After installed Windows, my notebook only boots in Windows. So I defined the EFI partition as active and now Clover boots - but only in OS X, Windows does not work (as I explained in my post above). I make anything wrong but I don't get it.
GPT should work, I used it in Chameleon, too (and I only had to install Chameleon and it worked - always!).
Posted 25 July 2014 - 01:14 PM
You need to repair your Windows 8 UEFI bootloader.
Create a UEFI Windows 8 USB installer or Recovery Disk and use it to boot into a command prompt. Follow the directions in this post from @Alex to restore the UEFI Windows bootloader and rebuild the BCD store in the EFI System Partition using the bcdboot command:
bcdboot c:\Windows /l en-gb /s b: /f ALL
where c:\ is your Windows volume, b: is the letter assigned to your EFI System Partition.
After the repair, reboot the computer normally to Clover on the the hard disk
----> choose "Boot Microsoft EFI Boot Menu from EFI"
---->then select bootmgfw.efi from the submenu to boot (hopefully) into your newly repaired Windows 8.
PS: That Niresh Guide is misleading and in fact gives instructions for dual booting OSX and Windows in legacy (hybrid/MBR) mode.
If it has a "hybrid" MBR, use GDisk to write a new "protective" MBR on your SSD ---> ensures the disk is pure GPT and can install UEFI Windows for best compatibility with Clover.
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