Mac Os Not Installing


These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

What you need to create a bootable installer

  • A USB flash drive or other secondary volume formatted as Mac OS Extended, with at least 14GB of available storage
  • A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan

Download macOS

My problem is that my Mac starts up to the 'El Capitan' installer. After restarting several times, OS X is still on screen telling me that 'no packages were eligible for install'. Can someone help please, and can you bear in mind that I’m not technically minded so keep instruction in simple terms. If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. For instance, if your MacBook was released in 2014, don’t expect it to run any OS released prior of that time, because older Apple OS versions simply do not include hardware drivers for your Mac. How to fix macOS Catalina boot problems. If you've installed macOS Catalina, but your Mac won't start, then restart your Mac and hold down Command, Option, P and R, which will reset the NVRAM (non. Reinstall macOS. Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions. Follow these guidelines during installation: If the installer asks to unlock your disk, enter the password you use to log in to your Mac. If the installer doesn't see your disk, or it says that it can't.

  • Download: macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra
    These download to your Applications folder as an app named Install macOS [version name]. If the installer opens after downloading, quit it without continuing installation. To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.
  • Download: OS X El Capitan
    This downloads as a disk image named InstallMacOSX.dmg. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.

Use the 'createinstallmedia' command in Terminal

  1. Connect the USB flash drive or other volume that you're using for the bootable installer.
  2. Open Terminal, which is in the Utilities folder of your Applications folder.
  3. Type or paste one of the following commands in Terminal. These assume that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.

Big Sur:*



High Sierra:*

El Capitan:

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument and installer path, similar to the way this is done in the command for El Capitan.

After typing the command:

  1. Press Return to enter the command.
  2. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
  3. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the volume is erased.
  4. After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume. Click OK to allow the copy to proceed.
  5. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Big Sur. You can now quit Terminal and eject the volume.

Use the bootable installer

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

Apple silicon

  1. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
  2. Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes.
  3. Select the volume containing the bootable installer, then click Continue.
  4. When the macOS installer opens, follow the onscreen instructions.

Intel processor

  1. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
  2. Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac.
  3. Release the Option key when you see a dark screen showing your bootable volumes.
  4. Select the volume containing the bootable installer. Then click the up arrow or press Return.
    If you can't start up from the bootable installer, make sure that the External Boot setting in Startup Security Utility is set to allow booting from external media.
  5. Choose your language, if prompted.
  6. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

A bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model.

For information about the createinstallmedia command and the arguments you can use with it, make sure that the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:

This informative article will demonstrate the comprehensive guide to fix VirtualBox mistakes while installing Mac OS X. Most sites producing content about the installment of Mac OS X El Capitan or macOS Sierra on VirtualBox aren’t complete and have errors. The guide may be right and operate on a single device perfectly and with no issue. However, there are plenty of devices and various types of errors. A couple of weeks ago, we made a post on the way best to set up Mac OS X El Capitan on VirtualBox, and the traffic has different sorts of issues.

Minimum System Requirements to install MacOS X on Virtualbox:

Minimum system requirements to install MacOS X on Virtualbox are: (It will help run macOS High Sierra or later versions without any problem.)

  • Minimum 2 GB memory (Recommended 8GB or higher)
  • Minimum 2 cores of processors (Recommended 4 cores or higher)
  • Hard disk free space 40 GB (Recommended 100GB or higher)
  • Your system should support Intel or AMD VT (Virtualization Technology)
  • Intel/AMD VT (Virtualization Technology) Should be enabled from BIOS setup

For fast performance, try installing macOS X on SSD rather than HDD.

Required: Enable Virtualization Technology (aka Intel VT or AMD-V). See video below.

Some key points to remember before Installing Mac OS X:

1) Intel CPU works better than AMD

2) Turn OFF Antivirus programs (Windows Defender) and Windows Firewall before starting the install

3) Set Video RAM to between 64-128MB

4) Use no spaces in VM name (ex: “MACOSX” not “MAC OSX”). Also, no punctuation. Also, re-verify:

VM Type: Mac OS X and Version: Mac OS X 10.11 El Capitan (64-bit)

(These are in Virtualbox Settings->General)

5) Suggest use wired Internet, not WiFi, for initial download/updates, etc.

6) Run CMD window as Administrator when entering command-line commands.

Mac Os Not Installing

7) May need to start Virtualbox as Administrator.

8) Be patient during initial boot up. It runs disk checks and other repairs… and can reboot a couple of times.

9) Be sure your HD or SSD has >80GB of free space. All the updates after initial installation gobble space.

10) Black Screen? Try video RAM > 64MB and Chipset = PIIX3

11) Do not install Virtual Box Extensions “CD”

12) Before adding commands on CMD, make sure you have quit your Virtualbox.

Unkown option –cpuidset

If you get this error “VBoxManage.exe: error: Unknown option. –cpuidset. The VM hangs on boot” while adding the first code in the Command Prompt. It’s because of the double hyphen. Use Double hyphen “- – “before cpuidset.

VBoxManage error: Could not find a registered machine named Your VM Name

If you get this error “VBoxManage error: Could not find a registered machine named Your VM Name“, it is because you haven’t used the correct name of your virtual machine when adding the codes on CMD.

You need to make sure you use the same VM Name you used when creating the virtual disk.

Missing Bluetooth Controller

If you get this error, make sure you close the virtual machine before adding the CMD codes.

Guru Meditation error or Black Screen

This error is majorly seen because of two issues-

The critical error happens due to the guest operating system. It is trying to switch to the PAE mode, which is currently disabled by default in VirtualBox. PAE support can be enabled using the VM settings (System/Processor)”.

  1. Open VM VirtualBox
  2. File -> Settings -> System -> Processor
  3. Check Extended Features: Enable PAE/NX


For people with the black screen problem or Guro Meditationerror, change the operating system version from macOS 10.13 High Sierra (64-bit) or macOS 10.12 Sierra (64-bit) to just the Mac OS X (64-bit). If the error still exists, switch the Video Memory Size to 128 MB from Virtual machine settings. This is a significant issue with most of the users.

This version of Mac OS X is not supported on this platform Reason: Iloveapple

Make sure Virtualization Technology (VT) is enabled from BIOS.

error: VBoxManage setextradata “OSX” “VBoxInternal/Devices/smc/0/Config/DeviceKey” “ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc” and you are stuck at appleKeyStore: operation failed (pid:30 sel:7 ret:e00002c2 ‘-536870206’)

Exit VirtualBox before adding codes to CMD

Yhal Htet Aung

Try to change the inverted commons throughout the virtual codes. Since you are copying the codes, you might be using the wrong inverted commas.

So, copy the codes in your notepad file, replace all the inverted commas via your keyboard and then try again.

Invalid Virtualbox Version

Make sure you add the right virtual codes. You can download the correct version codes here-

Stuck in an infinite loop on Black Screen

Try using this command as the last command on CMD-

VBoxManage modifyvm “VM_name” –cpu-profile “Intel Core i7-6700K”


Try Motherboards Chipset – both PIIX3 and ICH9 one by one

install.nsh is not recognized as an internal command

1st method:
If you get ‘install.nsh’ is not recognized as an internal or external command, operable program, or script file. You have not attached the Virtualbox Boot Image.



2nd method:
If you then get messages along the lines of ‘macOS Install DataLocked FilesBoot Filesboot.efi’ missing or not recognized:

run setup.nsh

now run, fs0:SystemLibraryCoreServicesboot.efi

and all should now spring into life.

3rd method:

  1. At UEFI prompt: Type exit
  2. You’ll be brought into an EFI text-mode GUI.
  3. Select Boot Maintenance Manager and click.
  4. Select Boot From File and click

You should see two entries in a list (they are cryptic looking PCI bus paths).

The first PCI path in the list is probably the boot partition that doesn’t contain bootable firmware. The second PCI path is probably to the recovery partition, the one you need to boot from. If the 2nd partition isn’t the recovery partition, look under the paths in the list to see if one of them is it. If the recovery partition isn’t present and valid, these instructions won’t work.

Click the 2nd entry, you should see (and then click):

macOS Install Data

Then click:

Locked Files

Then (if present), click

Boot Files

And finally click:


The installation will continue, or you will boot into the OS or get the Recovery utility menu (where macOS can be reinstalled from or Disk Utilities run). The ambiguity of that last statement is I did that awhile before writing this comment, and I don’t recall what I booted into first, only that it worked and was not hard to figure out what to do at that point. If you have a recovery partition, to boot directly into the Recovery Mode, turn on the Mac and immediately press and hold (⌘)-R

Set screen resolution

Use the following command-

cd “C:Program FilesOracleVirtualBox”

VBoxManage setextradata “VM Name” VBoxInternal2/EfiGraphicsResolution 1440×900

If you are still facing some issues, try using VMWare to install macOS on your Windows. When your current PC does not support Virtualbox and its configurations, try switching to VMWare. The process for it is relatively painless.

Share files and folders between Windows and MAC on Virtual Machines

Mac Os Update Not Installing

You can go through this complete guide- How to share folders on VirtualBox & Vmware? (Windows-MAC) Step by Step Guide

Mac Os 10.15.6 Not Installing

I tried installing macOS Catalina on Virtual on Windows 10 on a low configration system. You can watch the video tutorial here-