Guide: MultiBooting UEFI

After some teething issue with creating WIN10 USB Installer - ended up Rufus on my work PC - I can confirm this works for ASROCK Z170M PRO4S Mobo.

Hi Going Bald How are you!? Thank you for making this guide It is amazing and it helped me a lot to try to start fresh with the new Apple-world!
Sorry if I disappeared from the forum after i posted all those screenshot but I have been suspended for an infringement of the rules ( sorry about that too).
The system was very unstable partition was a mess from the screenshot that i posted probably you saw that... Then a HUGE mistake... I deleted all the partitions in my SSD instead of a volume into an USB...
I had a very bad awful week...

I decided to use Unibeast to make a USB and than I installed Osx-ElCapitan / Win7 / LinuxMint on my desktop Computer. I followed your guide that has been very helpful again! Instead of Multibeast then i used a plain Clover and i modified my config.plist looking at the one that a guy posted on this thread and i installed audio al1150 patch . That was very helpful too...

But now i have 3 issue:

• I can access linux from f11 thanks to the Mb but if I'm in Clover Boot I cant see my fresh-installed LINUXMINT, probably should I configure it better?
• Linux Mint is giving me problem and probably I have to Install it again or going for UBUNTU
• My apple logo disappear after 3 second during the booting and someone told me to fix AAPL,boot-display

1. Can I from Windows delete mint partition (Linux Filesystem Vol6) and restart with an usb installer and install ubuntu?
2. What will happen and what I have to do after that?
3. How could i fix the aapl, boot-display

I tried to search around but didn't find a method that i could understand sorry :/

Thanks a lot for you help!

Going Bald said:

You have a Pavilion Laptop, yes? The best to post in the Laptop forum for help with trackpad, webcam and mic.

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Please can you address me in some part of the forum? I do not want to post things in the wrong section
Thanks

nice guide!

quick question, I'm at the part in the windows install where I delete the partition I created in mac disk util. After deleting it it shows as unallocated space but it does not let me continue when i select it. I get a message at the bottom that says "Windows can't be installed on this drive (show details)", when clicking it says "Windows cannot be installed on this disk. The selected Disk is of the GPT partition style."

How can I continue?

EDIT: nevermind, turns out I didn't have the windows install usb in uefi format. Continuing with the guide, fingers crossed

Going Bald said:

It is actually recommended and preferred to install OS X on separate SSD/HDD from Windows or Linux. I wrote this guide mainly because people kept asking how to install on a single drive and it sort of reprises the Snow Leopard Win7 Ubuntu triple boot guide I wrote years ago ( http://www.tonymacx86.com/threads/guide-multibooting-for-the-novice-updated-3-12-see-log.18658/ ).

Just install your OS X-to-be drive, boot the USB installer, format your OS X-to-be drive (being very careful not to format the Win10 drive by mistake - do not laugh, it has happened - and install OS X. Or disconnect the Win10/Media drives first.
If you want to choose the OS to boot from a boot loader, make the OS X drive first in BBS boot order.

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I need some help. After I did the multiboot process, everything was looking pretty fine, but when I reboot right after use Muiltbeast, the Mac partition freezed on the apple logo. But the orders OS are doing fine.

Going Bald said:

If I have time might do one on the X58A. Busy with Sierra right now.

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After numerous failed attempts in trying to dual boot my HP Compaq 8300 SFF I thought I would try this method, but I can not boot off the Hard Drive (1 Installed, partitioned for OS X El Capitan and Windows 7). I tried this method as instructed, but with Windows 7 and no Linux. When I boot up my machine I only get a blinking underscore cursor in the top left corner, same outcome as my other attempts. I can boot to Clover via my UniBeast USB drive, however this is not an ideal solution as I can only boot to OS X with nv_disable=1.

In my BIOS settings under Boot Order I have:

UEFI Boot Sources

• USB Floppy/CD
• ATAPI CD/DVD Drive
• USB Hard Drive
• Windows Boot Manager (which I moved down to the bottom and disabled)

Legacy Boot Sources

• ATAPI CD/DVD Drive
• USB Floppy/CD
• Hard Drive
  • USB Hard Drive
  • SATA0
• Network Controller

I can see that I'm not given an option of which partition on SATA0 I can boot from or rearrange partitions.

Is this a hardware limitation by the BIOS? Is there anything I can do (update BIOS?-- at the bottom of the screen I have "Version 2.15.1229.")? Or do I have to add a second HD and keep Windows and OS X on separate drives and have the OS X drive listed ahead of the Windows drive in boot order?

Does this HP have AMI BIOS or Award UEFI? It should tell you when you boot to the UEFI/BIOS with the delete key on power-up.

Going Bald said:

Does this HP have AMI BIOS or Award UEFI? It should tell you when you boot to the UEFI/BIOS with the delete key on power-up.

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I'm guessing AMI -- pressing delete on power-up doesn't do anything, but the BIOS setup has an about and says "Copyright 1985-2012, American Megatrends, Inc."

gobigred said:

I'm guessing AMI -- pressing delete on power-up doesn't do anything, but the BIOS setup has an about and says "Copyright 1985-2012, American Megatrends, Inc."

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It is unfortunate that HP locks down so much of its UEFI/BIOS.
You are able to boot a UEFI Clover UniBeast USB and install OS X, yes? Have you installed Windows yet? Did you make sure it installed UEFI mode?

Going Bald said:

It is unfortunate that HP locks down so much of its UEFI/BIOS.
You are able to boot a UEFI Clover UniBeast USB and install OS X, yes? Have you installed Windows yet? Did you make sure it installed UEFI mode?

Click to expand...

Correct. I can install OS X and boot off the HD in a single boot configuration no problem. It's only when I install Windows I have problems. I used the instructions here http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html to make a Windows 7 installer USB drive (the only thing I could think that would maybe cause a problem was when I setup Rufus it did not have the "Standard Windows Installation" radio button to check (wasn't an option-- I made it in Windows 7).