[Solved] Installing El Capitan on a 10.13.3 host (iMac Pro)

Discussions about using Mac OS X guests (on Apple hardware) in VirtualBox.

[Solved] Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby tutt » 14. Mar 2018, 03:16

I'm a longtime Mac and VirtualBox user with several successful OS X guest installations that I use for application compatibility testing. I only use genuine Apple hardware. My new machine is a late 2017 iMac Pro running High Sierra 10.13.3. I am trying to install El Capitan as a guest, using the installer downloaded from the Mac App store (that I had on a backup drive from a few years ago). The installer, "Install OS X El Capitan.app" is 10.11.6 (15G31). I've tried several tutorials and apps for creating a bootable image. The most comprehensive I found was here:
riccardotramma dot com/2016/05/install-os-x-on-virtualbox-on-os-x/

From what I can tell, the installer image I am creating should work to boot the VM. The same image boots a real mac system on a USB drive without issue.

The issue I'm having is that the new VM will not boot from the installer image, but rather displays the "Guru Meditation" error. No matter what I try, this is the result. I've tried adjusting every possible setting: Chipset, Processors, EFI, video memory, Audio etc. Here are my logs:

pastebin dot com/raw/jUXVaypJ

Can anybody tell what might be going wrong? Thanks so much in advance for any tips.

PS I was prevented from posting links above, so you'll have to copy paste them manually, sorry.
Last edited by socratis on 14. Mar 2018, 04:10, edited 1 time in total.
Reason: Marked as [Solved].
tutt
 
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Re: Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby socratis » 14. Mar 2018, 03:28

In the "OSX guests" section of the forums (that's where you posted), there is a sticky topic titled "[Howto] Create OSX ISO from the OSX Install app". Follow the instructions there. And get rid of your old VM, create a new one and try with the defaults suggested by the template...
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Re: Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby tutt » 14. Mar 2018, 03:30

I followed that guide to the letter. Actually, just now I copied the same ISO I created to an older iMac (Late 2015), running Sierra. Same version of VirtualBox. Everything worked FINE. So the issue seems to be specific to the iMac Pro and/or High Sierra.
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Re: Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby socratis » 14. Mar 2018, 03:44

tutt wrote:So the issue seems to be specific to the iMac Pro and/or High Sierra.

The issue is specific to your CPU. Too new for your own good ;)
With the VM completely shutdown, issue the following command in the Terminal. No sudo or tricks like that are required, just as "you":

    VBoxManage modifyvm "El Capitan" --cpu-profile "Intel Core i7-6700K"
if your VM is still called "El Capitan", otherwise change the name in underline italics.
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
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Re: Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby tutt » 14. Mar 2018, 04:06

Aaahhhhhhhhhhhhhhhhhhhhhhhh thank you. Perhaps there should be a sticky about this somewhere.
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Re: Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby socratis » 14. Mar 2018, 04:09

Once it gets mainstream status, sure. Right now it just graduated beta... ;)
I might include it in the other posts with the installer instructions, I'll see.
Glad you got it going. Marking as [Solved].
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
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Posts: 25828
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Re: [Solved] Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby tutt » 14. Mar 2018, 04:20

I'm still installing, so will update this if it is successful. Would the same trick work for Sierra (guest)? I seem to be stuck on gIOScreenLockState. Here's that log:

pastebin dot com/raw/EaiAGNWJ
tutt
 
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Re: [Solved] Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby socratis » 14. Mar 2018, 04:23

tutt wrote:Would the same trick work for Sierra (guest)? I seem to be stuck on gIOScreenLockState.

You really ought to read the posts that I linked to. It's right there, in the red warning part...
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
socratis
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Posts: 25828
Joined: 22. Oct 2010, 11:03
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Guest OSses: Win(*>98), Linux*, OSX>10.5

Re: [Solved] Installing El Capitan on a 10.13.3 host (iMac Pro)

Postby tutt » 14. Mar 2018, 04:25

Sorry. I'll try installing from 10.12.3.
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