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Dual Boot Windows 10 OSX Yosemite via clover


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I've scoured the net and have not found any detailed guides regarding creating a dual boot Yosemite, WIndows 10 clover system.  I was hoping someone here can point me in the right direction to a tutorial that I may have missed or confirm my understanding of the various narratives i've found on the topic during my search.  First my system stats:

 

Intel 4690k

ASROCK h97m pro4

Hyperx 8GB ram single DIMM

#1 EVO 850 120 GB

#2 EVO 850 120 GB ram

3 GB WD hard drive

Asus GEFORCE GTX 960 sc

 

 

with that out of the way, i managed to install Yosemite.  I created the boot usb using [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url], Installed Yosemite, and went through post install using Clover EFIv2 installing for UEFI booting only and installing clover in the ESP.  I have OSX yosemite booting on one of my EVO 850s via clover.  Now I'm not completely clear on the easiest way to get windows 10 installed.  Through various tips online, i get the impression that it is as easy as following these steps:

 

1) unplug osx yosemite drive

2) plug in windows 10 drive to be

3) boot to windows 10 USB drive

4)select disk management tool and delete all extra partitions if any

5) install windows 10 along with any updates

6) reconnect OSX drive

 

after reboot, Clover will detect windows 10 drive and its as easy as selecting OSX or Windows 10?  is that all there is too it?  Is there a recommended format that the windows 10 ssd should be formatted to?  Also, if i want to use the 3gb hd for storage on both osx and windows, is there a recommended format (i.e. fat32 FAT etc?) or should I partition this seperately, one for OSX, on for windows 10?

 

Any help would be appreciated.

 

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  • 2 weeks later...
1) unplug osx yosemite drive

2) plug in windows 10 drive to be

3) boot to windows 10 USB drive

4)select disk management tool and delete all extra partitions if any

5) install windows 10 along with any updates

6) reconnect OSX drive

 

after reboot, Clover will detect windows 10 drive and its as easy as selecting OSX or Windows 10?  is that all there is too it?  Is there a recommended format that the windows 10 ssd should be formatted to?  Also, if i want to use the 3gb hd for storage on both osx and windows, is there a recommended format (i.e. fat32 FAT etc?) or should I partition this separately, one for OSX, on for windows 10?

 

Any help would be appreciated.

 

Pretty much that is all you need to do. Spend the money & buy Tuxera NTFS for Mac, issue solved

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  • 2 months later...

in history i use yosemite and windows 8.1 pro and today i update to 10.

now it just boot direct in Windows 10 and never shows the clover boot screen.

any ideas how to get the boot menu back at startup?!

 

solved: ..done! i just had to update clover and rename the bootmfw.efi.

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  • 2 weeks later...

hey,

 

Both Windows 10 and OS X 10.8 are running on my old laptop compaq presario (1HDD). The problem is that i can only switch between the two by using a USB stick.

Windows is auto booting, but if i want to select OS X i have to start up from my installation usb in order to select the OS X drive. I can use chimera to perfectly boot OS X but then I can't boot Windows anymore. I made the mistake to install OS X first... Now I have the problem that no boot loader can find my Windows drive (partition)... When i've installed clover only the OS X drive showed up. Can anybody help me? 

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hey,

 

Both Windows 10 and OS X 10.8 are running on my old laptop compaq presario (1HDD). The problem is that i can only switch between the two by using a USB stick.

Windows is auto booting, but if i want to select OS X i have to start up from my installation usb in order to select the OS X drive. I can use chimera to perfectly boot OS X but then I can't boot Windows anymore. I made the mistake to install OS X first... Now I have the problem that no boot loader can find my Windows drive (partition)... When i've installed clover only the OS X drive showed up. Can anybody help me? 

 

Depends on how you format your drive and what type of scheme you used to partition it. Is it MBR or GPT ? Second, it depends on what type of Bios your laptop have : Legacy or UEFI ?

 

To quickly sum up, here is the "ideal" way to successfully dualboot OS X & Windows depending on the bootloader/bios/partition scheme you are using :

 

• MBR : Legacy Bios (or UEFI Bios set to boot in Legacy mode) :

 

- OS X and Windows are installed on an MBR partition scheme (needs MBR patch for OS X install).

- Chimera/Chameleon or Clover Legacy (actually, EFI folder at the root of the drive).

 

• GUID/GPT* : UEFI Bios :

 

- OS X & Windows installed in GUID/GPT partition scheme.

- Clover installed in the EFI partition.

 

The point here is that Chimera/Chameleon can't boot Windows when installed in UEFI mode. You have to use Clover to do so.

 

• GUID/GPT with Hypbrid MBR : UEFI or Legacy Bios

 

- OS X is installed in a GUID partition scheme and Windows in Legacy mode on its own partition in NTFS. Use Disk Utility to create a new one : it will automatically reconfigure the GUID table to create an Hybrid MBR where Windows can be installed.

- Clover or Chimera/Chameleon can boot both systems as long as they are installed in Legacy mode too (again, at the root of the drive). Note that Clover can still be installed in the EFI partition of OS X in this case but there's no real benefits to do so.

 

While it seems to be the most "easy" way, I won't advise to use GPT/Hybrid MBR as it's not a very clean setup and could eventually have more drawbacks than benefits…

 

As a conclusion, I'd say that the best way is to keep things consistent : Use Chimera/Chameleon on MBR partition scheme with legacy bios and Clover on GUID/GPT partition scheme with UEFI bios systems. Don't get me wrong, you can use Clover in Legacy mode too of course !

 

There are ways to do just about whatever you want but they are more complex and could be kind of risky ;). Check this if you want to learn more :D.

 

*GUID/GPT : this is actually the same thing ;).

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@kuppido,

 

I'm assuming from your post that you have a legacy BIOS system with OSX installed first (on an MBR or hybrid MBR/GPT drive), then installed legacy (non UEFI) Windows.

 

One solution is to leave the Windows 10 bootloader in charge on the MBR and chainload to Clover or Chameleon (installed on the PBR) when you want to boot OSX.  Steps 1 and 2a in the procedure below can be omitted if the Windows bootloader is already in charge on the MBR --> booting straight to Windows.

 

 

 

1.  Open an elevated command prompt in Windows and run the following commands to make the Windows partition active:

diskpart
list disk
select disk # (where # is the disk where Windows is installed)
list partition
select partition * (where * is the partition number of your Windows installation)
active
exit

post-846696-0-95932400-1439337320_thumb.

2.  Install EasyBCD to restore the Windows 7 bootloader code to the MBR and setup a boot manager entry for OSX (chainloads to Chameleon).

  a.  Run EasyBCD and click the "BCD Deployment" button on the left.  Under "MBR Configuration Option", select "Install the Windows Vista/7 bootloader to the MBR" and click "Write MBR"

 

post-846696-0-67664000-1439337388_thumb.

  b.  Click the "Add New Entry" button on the left and select the Mac tab under "Operating Systems".  Under "mode", select MBR and click the "Add Entry" button.

 

post-846696-0-97494400-1439337444_thumb.

  c.  Click "Edit Boot Menu" and rename the entry to whatever you want eg "OSX" or "Chameleon".

 

post-846696-0-48999800-1439337481_thumb.

  d.  Finally, click "Save Settings", and exit EasyBCD.  To boot into OSX, restart the computer and at the Windows Boot Manager, select OSX/Chameleon to chainload Chameleon and boot into OSX....

 

 

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@polyzargone,

 

Yeah, installing boot0hfs into the MBR should restore Chameleon to "be in charge" of booting but he said in post#5 he could "use chimera to perfectly boot OS X but then I can't boot Windows anymore".

 

I know Windows (and especially Windows 10) always likes to have its bootloader "in charge" and sometimes strange side-effects can happen (eg hybrid sleep problems, failure of upgrade installs) when it is replaced by third party bootloaders. :).

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OK :P.

 

I suspected something like this and I also know that Windows can become really angry when you start messing up with it's toys :D.

 

That said, I was very unsure/anxious when I did a simple direct upgrade from Win 8.1 to Win 10 (dualbooting OS X & Windows on the same MBR partitioned drive) on one of my old Dell D830 and was very surprised that it worked flawlessly.

 

Windows didn't complain at all and Chameleon didn't even needed to be re-installed :blink: !

 

For kuppido's problem, I think we need some clarification since I don't really understand how he can boot OS X and not Windows using a USB stick while without it Windows boots straight.

 

Assuming Windows is installed in legacy mode, Chameleon should see the Windows partition but from what I understood, it's not the case. Or maybe was he talking about Clover failure to detect the Windows partition which would be a different issue ?

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  • 5 months later...

I have a different issue.

 

I have two HDDS, with Windows 10 (in UEFI mode) on one of them.  I'm trying to add a newer version of OS X than Snow Leopard; however, only older versions of Chameleon (in legacy + UEFI) will work at all on the OS X side.  Clover will ONLY boot Windows 10 (in GPT/EFI mode); it refuses to boot OS X (in any mode).  Motherboard is MSI H81-E33 with latest CB4 (6.7); I'd like to stay entirely in UEFI mode.  The sting in the tail is OS X - I've even found two different Linux distributions that cooperate with GPT (Sabayon and SteamOS)  Is there a particular setting (in CB4) that will cure Clover's woes?  I am NOT used to Clover being this persnickety - especially since Clover was far easier back when running a legacy BIOS.  I'm basically having the "reverse" of kuppido's issue, as Windows (in GPT mode - which was how I installed it) WILL boot from Clover (different drive from OS X altogether); however, OS X will not boot from Clover from USB - even though the install media hosts OS X and Clover, and they are on the same stick; OS X on a drive wont boot from Clover on a USB stick, either - despite Clover detecting it just fine (stranger yet; especially since Windows WILL boot from Clover on a stick).  What would cause such strangeness?

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