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Boot Yosemite / Windows 8.1


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#1
dsTny

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Hey guys,

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?

Thank you :)

#2
ZalaDa

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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

 

ADIOS !



#3
dsTny

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I followed this guide:
http://www.niresh.co...-with-clove-r39

/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
Attached File  image-7.jpeg   135.67KB   4 downloads

This is my folder structure in the EFI partition of my SSD
Attached File  image-6.jpeg   108.84KB   4 downloads

If I start My system, I can choose following devices to start
Attached File  image-2.jpeg   80.06KB   4 downloads

I'll take SSD (M4) and has following options to start.
Attached File  image-5.jpeg   73.46KB   3 downloads

If I choose the one option of the picture above, I get this error
Attached File  image-4.jpeg   84.2KB   3 downloads

If I choose following option, After some time with following icon I get this error.
Attached File  image.jpeg   67.08KB   3 downloads
Attached File  image-3.jpeg   28.95KB   4 downloads
Attached File  image-8.jpeg   145.69KB   4 downloads

Please I need your help, I despair  :(



#4
dsTny

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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!).



#5
fusion71au

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@dsTny,

 

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.

 

Good Luck!

 

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.

 

Download GDisk, Man page for GDisk.

@pokenguyen's AIO guide







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