Apply permissions to all items in a folder or a disk. On your Mac, select a folder or disk, then choose File Get Info. If the lock at the bottom right is locked, click it to unlock the Get Info options, then enter an administrator name and password. Click the Action pop-up menu, then choose “Apply to enclosed items.”. Open Disk Utility and erase your internal disk; Install macOS (the macOS that came with your Mac, or the version closest to it that is still available will be installed). After rebooting and configuring your system download and install macOS Sierra. DON’T install High Sierra. I’ve had nothing but issues since installing it. Been at it with Adobe and Apple support since Monday. No solution so far. Google “High Sierra problems” you’ll find plenty of evidence of how buggy it is. My brand new MacBook Pro is behaving like my late 2008 MacBook Pro since the upgrade. Fucking furious. Reinstall, Repair, Recovery, macOS High Sierra 10.13 Disk Utility - Instruction included Factory Reset Mac Clean Up Install. Not for older Plastic Macs or Core 2 Duo models. NOT for fixing EFI firmware lock. When tried to see what's wrong if the disk is broken or what but we can only see First Aid and Partition. Erase, Restore and Unmount are grayed out. When we click on the First Aid, what we only see is what showing on the photo. We tried reinstalling the macOS High Sierra but its telling us that the disk is locked.
During a recent pentest, I needed to throw together a macOS virtual machine. Although there was lots of guides around the web, none seemed to work from start to finish. This post contains the steps I extracted from various resources in order to get a fully working High Sierra install within VirtualBox 5.
Step 1: Download The High Sierra Installer
To do this, you need to be on an existing macOS system. I was unable to find the download within the App Store itself, but following this link opened the App Store at the correct page: https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?mt=12
After opening the aforementioned page in the App Store, start the download, but cancel the installation when it starts.
You can then verify that the installer has been downloaded by checking that
'/Applications/Install macOS High Sierra.app' exists.
Step 2: Create a Bootable ISO
Next, you need to create an ISO from the installer application that was downloaded in step 1.
Cannot Install Macos High Sierra Disk Is Locked
Running the below commands will create an ISO on your desktop named
Step 3: Creating the Virtual Machine
I experimented with a few different settings in regards to the CPU and RAM allocation. I didn’t find a combination that didn’t work, but create a VM with the following things in mind:
- Ensure the name of the VM is
MacOS(ensure to keep the same casing)
- Ensure the type is
Mac OS Xand the version is
macOS 10.12 Sierra (64-bit)(there is a High Sierra option too, but I chose Sierra by accident and it worked)
System > Motherboard > Boot Order
- Use >= 4096 MB of memory in
System > Motherboard
- Use >= 2 CPUs in
System > Processor
- Use 128 MB of video memory in
Display > Screen
- Optionally enable 3D acceleration in
Display > Screen
- Remove the IDE device in
Storage > Storage Devicesand replace it with a SATA controller
- Add a new hard disk device under the SATA controller with >= 60 GB of space
- Ensure an optical drive is present under the SATA controller and mount the previously created ISO to it
- Untick the
Enable Audiooption under
After creating the virtual machine with the above configuration, hit OK and exit the settings screen. Now, a number of extra options need to be set.
If you’re on Windows, you’ll need to
cd into the appropriate directory under the VirtualBox installation path to run
VBoxManage. For Linux users, this should be in your
PATH variable already:
After running the above commands, the VM should be ready to boot!
Step 4: Installation
This is where near enough everything I read stopped, despite there being one more problem in the way - UEFI.
Boot into the VM, go into Disk Utility and erase the virtual disk that you added to the machine.
After erasing the disk, start the installation procedure. After a short amount of time, it will reboot the VM.
Once it reboots, it’s going to boot back off the ISO again, once it’s done this, just shutdown the VM and eject the disk [the ISO] and then start the VM again to boot from disk.
On the next boot, it should boot into the installer that was copied to disk, but instead, you will be presented with a UEFI shell like below:
To continue the macOS installation, follow these steps:
exitand hit return
Boot Maintenance Managerand hit return
Boot From Fileand hit return
- You will see two partitions, select the second partition and hit return
macOS Install Dataand hit return
Locked Filesand hit return
Boot Filesand hit return
boot.efiand hit return
Macos High Sierra Disk Is Locked Windows 10
After following these steps, you will boot into the remainder of the macOS installation. From here, just follow the steps as per a regular macOS installation.
The next time you boot your virtual machine, you will not have to go through the UEFI shell; it should work without any further problems.
Step 5: Tweaking The Resolution
As there is no VirtualBox additions for macOS, the screen resolution won’t automatically change. If you know what resolution you wish to use, however, you can set it manually.
Ensure the virtual machine is powered off, and then run the following command; replacing
1920x1080 with whatever resolution you would like to use:
After running the above command, the next time you boot the machine, it will use the resolution specified.
Now, you should have a fully working macOS virtual machine!
The information found in this post was pieced together from the following sources: