Contribute
Register

Install Bootloader and Extra to EFI Partition

Joined
Feb 11, 2011
Messages
65
Motherboard
Gigabyte Aorus Z370 Ultra Gaming rev. 1.0
CPU
i7-8700K
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. Android
  2. iOS
Article: Install Bootloader and Extra to EFI Partition

Hello everybody,
I tried to follow this guide to solve some troubles but I even complicated the situation! Just a brief summary:
I have a dual boot W7 and Mavericks on different SSDs. Chimera bootloader allowed to choose which to launch at startup. A third HDD with some NTFS partitions stores my data.
1) changed the SSD of W7 up to 256 Gb because of space requirements. To perform this I used Acronis software, but this required to set up BIOS IDE access to HDs. Changing this bypassed Chimera booting menù and I was able to copy W7 OS old to new SSD.
2) Disconnected the old W7 SSD drive and rebooted.
3) Chimera has no more loaded even restoring AHCI in BIOS setup.
4) Used Unibeast to launch Chimera and access Mavericks OS on its SSD. Upgraded CHimera to 4.0, but it doesn't start during normal booting without Unibeast.
5) Followed the procedure of this thread to create an EFI partition where to install Chimera. Something went wrong because if I keep connected the Maverick SSD the PC remains always stuck at the prompt: verifying DMI pool data..... even if I try to boot with Unibeast, W7 setup DVD and so on. The only way to access the PC (now only W7 obviously) is to disconnect the Maverick SSD.
How to solve the issue?
Many thanks in advance.
Bye
 
Joined
Aug 8, 2013
Messages
10
Motherboard
mountain lion 10.8.2
CPU
intel core i3 sandy-bridge 2120
Graphics
nvidia Geforce GT 430
Mac
Classic Mac
Mobile Phone
  1. Android
Article: Install Bootloader and Extra to EFI Partition

PLESE help me i get this error
bash-3.2# fdisk -f boot0 -u -y /dev/rdisk0
fdisk: could not open MBR file boot0: No such file or directory

what should i do
 
Joined
Dec 16, 2014
Messages
1
Mac
Classic Mac
Mobile Phone
Article: Install Bootloader and Extra to EFI Partition

same Issue as Didii mentioned here with OSX and Win7 on same drive.
(11-14-2013, 10:04 AM)
Have tried it several times, always with same result.

After performing this Guide my Windows7 is scratched.
Seems like it always corrupts my boot files in Win7.

After i reinstall Win7, it gives me the "Missing operating system" message.
So that I've to start from USB-Stick again.

Any Solution for that ?

Thanks
 
Joined
Dec 17, 2010
Messages
8
Motherboard
OSX 10.6
CPU
i7-930
Graphics
ATI 7950
Mac
Classic Mac
Mobile Phone
Article: Install Bootloader and Extra to EFI Partition

I followed the instructions, but reach a black screen at the desktop. I can control the audio and everything, but no image.
Using the GraphicsEnablers=No -x boot flags I can reach the desktop and continue to work.

Any suggestions? I don't have integrated graphics, and I though the HD 7950 had native support.
Do I need a DSDT? Kext? Combo update to 10.9.4? Chimera?


EDIT: Got it working. Just have to use GraphicsEnabler=No. I edited the plist so it will default to that setting.
The BIOS takes considerably longer to run through on my motherboard. It takes around 1 minute to get past the "Verfying DMI Pool Data" screen. Also, selecting my Windows 7 drive with Chimera will result in a "Boot Manager Missing" error, but if I boot directly into the Windows 7 drive by changing the boot order on the motherboard it works fine. Good enough for me.

Specs:
i7-930
Gigabyte GA-x58A-ud5 Rev 2.0
ATI HD 7950
SSD, 32GB RAM, Cinema Display over DVI,
Mavericks 10.9.00
 
Last edited:
Joined
Feb 13, 2013
Messages
33
Motherboard
Gigabyte AORUS Z390 PRO
CPU
i9 9900k
Graphics
RX 6900 XT
Mac
  1. MacBook Pro
Mobile Phone
  1. Android
Article: Install Bootloader and Extra to EFI Partition

I installed everything and the procedure went flawlessly. Everything is running great. But an issue has cropped up. I wanted to make a change to my org.chameleon.Boot.plist file in order to try and get HDMI audio working and when I mounted EFI, it was empty. Any ideas?

Dan
 
Joined
Jan 29, 2012
Messages
4
Motherboard
Intel DZ77GA-70K
CPU
3770k @ 4GHz
Graphics
Gigabyte GTX1070 G1
Mac
  1. MacBook Pro
Classic Mac
  1. iMac
  2. Power Mac
Mobile Phone
  1. iOS
Article: Install Bootloader and Extra to EFI Partition

I did these steps 4 times already, but my pc keeps hanging on Loading Operating System... I have done this before and it worked, but now I just can't get it to work anymore. I'm doing these steps exactly right, but it just doesn't want to boot. The HDD LED on my pc is always burning like crazy when it gives me this message. I am using the integrated Intel graphics chip for installation and I can boot it as long as I don't do these steps.

After doing all of this I also can't seem to boot any USB stick or other HDD, only after I format the OSX disk I can use my PC again. I hope you guys can help me because I can't find my way out.

Specs :
Gigabyte GA-H67M-UD2H-B3
AMD HD7950 3GB
8GB RAM
64GB OCZ Onyx SSD (works fine after formatting)
Intel i5 3570k @ stock speeds
 
Joined
Feb 22, 2014
Messages
2
Motherboard
N/A
CPU
N/A
Graphics
N/A
Mac
Classic Mac
Mobile Phone
Article: Install Bootloader and Extra to EFI Partition

73445d1384101505-efi.png.html

NOTE: This procedure is entirely optional, and will not give you any other benefits beyond cleaning the root of your install. Also, each time you want to make changes, you'll have to mount your EFI partition through the Terminal. If you're uncomfortable using the Terminal, do not proceed.

Hey a note; If you enable the Debug Menu in Disk Utility then you can mount your EFI partition without the Terminal, Yes, I said no Terminal worl at all!:clap::D
 
Last edited by a moderator:
Joined
Jul 25, 2011
Messages
1
Motherboard
Asus H81M PLUS
CPU
i3-4130
Graphics
GT 610
Mobile Phone
  1. Android
  2. iOS
Article: Install Bootloader and Extra to EFI Partition

Success with Asus H81M-Plus.


Great job.
 
Joined
Nov 23, 2011
Messages
46
Motherboard
Gigabyte Z370M-DS3H
CPU
i5-8400
Graphics
UHD 630
Mobile Phone
  1. iOS
Article: Install Bootloader and Extra to EFI Partition

What if I just erase and then join it with my current partition to gain some extra space (I have a 128 GB only SSD)? Or is such a volume necessary for Mac OS to boot up?
 
Top