Disk Utility on MBR partition not working - Hackintosh Yosemite - Hackintosh Zone Jump to content
  • 0
GregorioRosson

Disk Utility on MBR partition not working

Question

***SOLVED***SOLVED***SOLVED***

 

Hi

 

I am trying to installing Yosemite on my ASUS laptop with Niresh's amazing distro 10.10.1.

 

I have a ~100GB partition (MBR) that I am willing to use to install Yosemite, but when I have to use Disk Utility to erase and format it, I get the message "Mediakit reports not enough space ...". From what I have understood the MBR partition should not be a problem since the distro is already MBR patched.

I have tried to leave that space completely free (not partitioned), with no results. I have also tried distro 10.10.0.

(I am trying to avoid to format the whole disk to partition it in GUID).

 

Is it possible that I am doing something wrong? Is it possible that this is linked to some boot options or bios settings?

 

Thank you very much

And thank you very much Niresh for your amazing work

 

 

 

***Solution***

 

Hi.

I found out that, even if Niresh's distro is correctly MBR patched, Mac OS installation has problem if the EFI partition on your computer is <200Mb.

Problem: the default EFI partition of Windows 8.1 (and others) installation is ~100Mb --> Too small!! <--

 

There is a good thread on this problem here:

http://www.tonymacx86.com/multi-booting/133940-mavericks-windows-8-same-drive-without-erasing-2.html

 

Reply #13 was almost perfect for my case

The point is that you have to expand this EFI partition, but ordinary tools and software won't allow you to access it, since it is reserved to the system.

You need to take some patience and:

- build a bootable Windows USB

- usd DISKPART tool

- erased the Recovery Partition (it is not necessary, while the space it occupies is)

- made a backup of the EFI partition

- erased EFI partition too

- created a new bigger EFI partition

- copied in it the content of the old one form the backup

 

Windows still boots, and Disk Utility finally works properly

 

** note 1: what didn't work for me form the mentioned reply #13 of the linked thread: (Read the thread before this)

I couldn't manage to assign a letter to the EFI partition, it looks like "assign" does not work on partition, but only on volumes.

So you have to list volumes, and select the one formatted in FAT32 with size ~100Mb, and then assign a letter to it (e: in the example). Then everything goes as written there.

NOTICE: Look for some guide on how DISKPART tool works and get an idea of what commands do. It is a very powerful tool and you risk to erase everything from your disk if you do not know what you are doing

 

** note 2: refer to the linked thread to understand what is going on, I am not an expert and I just got an idea of what I had to do. I can't give you more information

 

** note 3: this is a problem that probably a lot of people who bought a pre-assembled computer with pre-installed windows face. Wouldn't it be a good idea to mention it in Yosemite Zone installation guide or in the FAQs?

  • Like 1

Share this post


Link to post
Share on other sites

2 answers to this question

Recommended Posts

  • 0

Even a "duplicate post, dumbass" answer would be appreciated.

I have spent some days going through forums and attempts, but everyone having a similar problem seem to solve it with the MBR patch, that in this case is already present

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Donation Goals

    Hosting

    Please donate to support the community.
    We appreciate all donations!



    $54.09 of $100.00 goal reached.
    Donate Now
  • Download Hackintosh

  • Files

  • Posts

    • Hey guys, I'm looking into dual booting OSX Sierra or High Sierra on my ASUS Zenbook Pro UX501V. I use a lot of mac only software like sketch at uni and it would make my life a lot easier to just be able to boot into it instead of going to campus to use one of their Mac's. I'm currently running windows 10 and would prefer to not have to lose all my files or reinstall windows 10, however if this is unavoidable I would consider it. Specs are Processor    Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz, 2592 Mhz, 4 Core(s), 8 Logical Processor(s)
      GPU    NVIDIA GeForce GTX 960m 4gb DDR5
      RAM    12GB DDR4
      BIOS Version/Date    American Megatrends Inc. N501VW.300, 9/05/2016
      BIOS Mode    UEFI Does anyone know of any guides? Or has done this before? Even a link to point me on my way. Looked into the clover bootloader and I'm under the impression that's the route I'll have to take. Thanks for any help you may have      
    • Hi everyone. Here are my specs MOBO :Gigabyte Z68 XP UD3 (1155) GPU : HD 6870 1gb CPU Intel i7 2600k (1155) 60gb SATA SSD   MOBO is using legacy Bios. This machine has served me well for years. I tripped a circuit breaker a few weeks ago and now it's stuck in a boot loop. I have setup a new bootable USB to reinstall but for some reason the boot loop is happening when I startup from this as well. I can manage to get to the desktop using the safe mode boot flag (-x) but after a few moments, the desktop freezes and the computer reboots. I used the 10.10.1 disc image to create the new USB stick I am not sure if this could be causing the boot problem in the USB. Should I have used the 10.10.0? At first I suspected a hardware issue but I left the computer on for two days at in the bios screen and it stayed on just fine. Hoping someone can give me a hand figuring out which boot flags can get me going again or how I can reinstall the OS. I really need to get past the freeze/reboot cycle I am in. I am almost ready to nuke this thing and install windows
    • i also have this problem if you will finde the solution please inform me right away and thank you
    • I built a Hackintosh on a GIGABYTE GA-EP45-UD3P in 2010, and upgraded it to Sierra about 4 months ago. It's been working great until a few days ago.  The clock now is losing time, while the computer is on and running. I've been working on the computer all morning, and have had to bump it forward to the current time it 3-4x. Right now it says 9:40am, but it's really 9:47am.  I have "Set time and date automatically" set in settings and "Apple Americas/U.S. (time.apple.com.)" selected on the drop down. Deselecting it, and selecting it again, brings the clock back to the current time.  Is this a hardware issue or a software issue? Do I have to replace the CR2032 on the motherboard? If so - why? The computer is on, and running, why would it need that battery to maintain the time?       
    • i am trying to install yosemite on a asus m2n sli deluxe chipset NVIDIA amd Athlon 64 X2 5600+ ATI Radeon HD 4800   and still i am stuck at pci configuration begin or console error. i tried several kernels and graphic cards with no results please help with these boot flags ive tried -v -x ncpi=0x3000 nv_disable=1 -v -x ncpi=0x3000 nv_disable=1 GraphicsEnabler=No
  • Download Statistics

    • Files
      842
    • Comments
      2,129
    • Reviews
      2,538

    Latest File
    By rembrandt63

    309    0

×