Apple - Install Sierra as guest OS in VM with Parallels 12

I'm use VMware Fusion and just downloaded "Install macOS Sierra.app" from the App Store and then made an ISO Image to install from. The ISO Image should also work in Parallels Desktop.

To create an ISO Image from the "Install macOS Sierra.app" application bundle, I used the following bash script. Note: This requires 12 GB of free space to create but only uses 6 GB when finished.

In Terminal:

touch makeSierraISO
open makeSierraISO

• Copy and paste the code below into the document, modifying the path to the InstallESD.dmg if necessary, then save and close.

Back in Terminal:

chmod u+x makeSierraISO

To run the script in Terminal: ./makeSierraISO

#!/bin/bash

hdiutil attach "/Applications/Install macOS Sierra.app/Contents/SharedSupport/InstallESD.dmg" -noverify -nobrowse -mountpoint /Volumes/esd
hdiutil create -o macOS_Sierra_10.12.0.cdr -size 6144m -layout SPUD -fs HFS+J
hdiutil attach macOS_Sierra_10.12.0.cdr.dmg -noverify -nobrowse -mountpoint /Volumes/iso
asr restore -source /Volumes/esd/BaseSystem.dmg -target /Volumes/iso -noprompt -noverify -erase
rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages
cp -rp /Volumes/esd/Packages /Volumes/OS\ X\ Base\ System/System/Installation
cp -rp /Volumes/esd/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/
cp -rp /Volumes/esd/BaseSystem.dmg /Volumes/OS\ X\ Base\ System/
hdiutil detach /Volumes/esd
hdiutil detach /Volumes/OS\ X\ Base\ System
hdiutil convert macOS_Sierra_10.12.0.cdr.dmg -format UDTO -o macOS_Sierra_10.12.0.iso
rm macOS_Sierra_10.12.0.cdr.dmg
mv macOS_Sierra_10.12.0.iso.cdr macOS_Sierra_10.12.0.iso

Assuming you ran the script from your Home Folder in Terminal, then look for the file macOS_Sierra_10.12.0.iso in your Home Folder. Use Parallels to create new VM. Point the new VM wizard to that .iso file. Parallels may complain, saying it is unable to recognize the OS being installed. Proceed and choose macOS from the offered menu.

---

The method posted by @user3439894 worked for me under Parallels.

I did initially have a problem at the first step: + hdiutil attach '/Applications/Install macOS Sierra.app/Contents/SharedSupport/InstallESD.dmg' -noverify -nobrowse -mountpoint /Volumes/esd hdiutil: attach failed - Resource busy

In /Volumes, I unmounted iso and "OS X Install ESD":

cd /Volumes/

amount iso

umount "OS X Install ESD"

Possibly only one of the two mounts above caused the issue, but too late to tell.

Once macOS_Sierra_10.12.0.iso is created, start up Parallels Control Centre:

1. Choose "Install Windows or another OS from a DVD or image file", continue
2. Choose "Locate Manually", "Select a file ..." and find macOS_Sierra_10.12.0.iso
3. Parallels will respond "Unable to detect operating system". Continue, and choose OS X.
4. Carry on

I just tested making an ISO of High Sierra 10.13 and creating a Parallels VM using it and had success. I tried using the 10.13 updated script that @cobberboy posted, which worked to create the ISO, but after booting to it in Parallels and attempting to start the macOS install it would throw an error about a .mpkg file missing.

So I used the following method instead:

First download the "Install macOS High Sierra.app" from the App Store, it should land in the Applications folder.

Then open Terminal and run each of these commands in order:

hdiutil create -o /tmp/HighSierra.cdr -size 5200m -layout SPUD -fs HFS+J

hdiutil attach /tmp/HighSierra.cdr.dmg -noverify -mountpoint /Volumes/install_build

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build

(the above command may come back with "To continue we need to erase the volume at /Volumes/install_build. If you wish to continue type (Y) then press return". If so enter Y)

mv /tmp/HighSierra.cdr.dmg ~/Desktop/InstallSystem.dmg

hdiutil detach /Volumes/Install\ macOS\ High\ Sierra

hdiutil convert ~/Desktop/InstallSystem.dmg -format UDTO -o ~/Desktop/HighSierra.iso

A file named "HighSierra.iso.cdr" will now be on the Desktop, rename it to only use the .iso extension (remove .cdr).

Open Parallels and choose "Install Windows or another OS from a DVD or image file."

Drag the "HighSierra.iso" file into the window (or locate ISO file manually).

Parallels will respond with "Unable to detect operating system". Click continue to ignore this and proceed with the install through Parallels.