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Partition hard drive on mac for previous os x install how to#
Partition hard drive on mac for previous os x install mac os#
Partition hard drive on mac for previous os x install install#
Partition hard drive on mac for previous os x install upgrade#
Partition hard drive on mac for previous os x install windows#

Partition hard drive on mac for previous os x install how to#

We'll walk you through how to downgrade macOS. On the downside, the downgrading process isn't as easy as it used to be.

Partition hard drive on mac for previous os x install upgrade#

Even so, you might find that once you've gone through the upgrade process, your system isn't working right.įortunately, if you need to, you can drop back to the previous macOS version you were running.

Partition hard drive on mac for previous os x install install#

If you do not want to remove the existing files on the disk, you have to backup them first and then restore them to the new partition after install macOS OS X.It's always tempting to install the latest version of macOS, full of new features and updates. Now when you install the macOS Mountain Lion again, you can select the disk partition that you just create.Ĩ. Give the partition a name and click the erase button to format it.ħ.

Partition hard drive on mac for previous os x install mac os#

Format the disk with Mac OS Extended (Journaled) format on the right side erase tab.Ħ. Select the disk that you want to create the partition.ĥ. Click the Show all disks menu to list all hidden disks.Ĥ. Click the Disk Utility item to open the disk manager.ģ. Quit the OS X Mountain Lion installation by clicking the menu item Quit Install OS X.Ģ. The reason for this issue is because you do not have any partition on your virtual disk, you can follow the steps below to fix it.ġ.When the installation process comes to the screen that said select the disk where you want to install the OS X, I can not get the disk to install, how to fix this issue. And I want to install the macOS Mountain Lion on the VirtualBox virtual machine.

Partition hard drive on mac for previous os x install windows#

I install VirtualBox 5.8 on Windows 10.

5.1 No disk to select issue when install macOS mountain lion on VirtualBox.

Click the Storage tab after the General tab, check the Use Host I/O Cache checkbox on the right side ( Storage Devices -> Attributes ) to enable it.ĥ.

Select another 64bit macOS version in the Version drop-down list.

Click the General tab in the popup dialog, click the Basic tab under the General tab.

Right-click the virtual machine, click the Settings menu item in the popup menu list.

To fix this issue, you should use another 64bit guest version in the VirtualBox virtual machine, and enable Use Host I/O Cache in the Storage tab follow the below steps.

When you start the VirtualBox virtual machine to install macOS Mojave, you may see a gray screen at the beginning, and it stuck there and can not continue.

How To Fix Get Stuck With Gray Screen Issue At The Beginning Of macOS Mojave Installation Process. But one thing you should take care of is the physical HDD cable, you should make sure the HDD cable is plugged in tightly. If you find this issue when you reinstall macOS on a Physical MacBook, the above method also makes sense. Tips When No Disk To Select Issue Happen On Physical MacBook. Now you can select Reinstall macOS to install it again, and you can select the virtual disk partition during the installation process now.ģ. Then close the Disk Utility window to go back to macOS Utilities window.

When the creating partition process complete, click the Done button to finish it.

Input the partition name, select partition format Mac OS Extended ( Journaled ) in the format drop-down list, click Erase button at bottom of the pop-up window to start creating the partition.

Select the virtual disk in Disk Utility left panel, then click Erase button at the top bar, it will popup a window.

Then select Disk Utility in macOS Utilities window, click the Continue button.

Click Install macOS High Sierra -> Quit Install macOS menu item at the virtual machine window top-left corner to quit mac os installation wizard.

The reason for this issue is because there does not has a partition on the virtual disk, so we should first create a partition on the virtual disk, then you can select the virtual disk partition to install mac os. How To Fix No Disk To Select Error When Install Mac OS On Virtual Machine. But you can not select the disk because there is no disk to select.Ģ. And then it will go to another window to let you select the disk where you want to install os x.

Click the Continue button in the above window, then click Agree button in the next window.

Then it will popup install mac os high sierra or Mojave welcome window.

Start the virtual machine, then select the second item Reinstall macOS in macOS Utilities window, click Continue button.

How To Reproduce Can Not Select Disk To Install MacOS Error Window.