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Macos catalina install time how to#
Macos catalina install time mac os x#
Macos catalina install time mac os#
Macos catalina install time update#

After typing in your password, press Enter. Note you won’t see characters appear as you type it in, that’s fine.

Make sure that you use the name you have given your drive – e.g.

Copy the text that corresponds to the version of macOS you are installing into Terminal – you’ll find the text in the section below.

Otherwise you’ll find it in the Utilities folder).

Now you are ready to make your bootable installer: open Terminal (the easiest way is to press Command + spacebar and then start typing Terminal.

Wait while Disk Utility creates the partition and sets up the drive (this can take a few minutes).

(Note you will need to replace the term ‘MyVolume’ in the createinstallmedia command below with whatever name you give your drive).

Your drive will probably be called ‘Untitled’ by default, you could give your drive a name such as ‘macOS’ or ‘USB’.

Choose GUID Partition Map as the Scheme.

Macos catalina install time mac os#

Choose Mac OS Extended (Journaled) as the Format.

Select the root drive in the sidebar (the next step won’t work if you only select the volume).

Now you will see the external root drive in addition to the volume below it.

Choose Show All Devices from the options.

Before this next step, note: if you are running High Sierra or later you will need to click on the View drop down below the close minimise buttons.

Launch Disk Utility (press Command + spacebar and start to type Disk Utility).

Plug in an external drive with at least 15GB space as that’s how much the installer will require.

These are the instructions to follow to create your bootable USB – note there will be tiny adjustments depending on the installer you require: Note that the createinstallmedia command erases anything on your external disk though, so make sure there’s nothing on it that you need. You’ll find all the createinstallmedia commands below, including the Monterey createinstallmedia command. The createinstallmedia command makes it possible to create a bootable copy of an installer on any drive that’s connected to your Mac.

Since Mavericks, creating a bootable installation of macOS requires a single command in Terminal.

Macos catalina install time mac os x#

Also, the processes have changed slightly since Mavericks so if your looking to create an installation of one of the ‘Cat’ versions of Mac OS X you should read this older article instead. Note, the createinstallmedia method described here doesn’t work under OS X 10.6 Snow Leopard or earlier – it requires OS X 10.7 Lion or later. Now you have the installation files, we can move onto the process of making the bootable installer.

Macos catalina install time how to#

How to create a bootable installer for macOS A disk image named InstallOS.dmg will download and once it does you need to locate the pkg installer inside the disk image. If it is already open make sure that you close the Mac App Store before clicking on any of these links or they won’t work.Īpple provides dmg files of these older macOS versions – you need to download them in Safari. Luckily it can still be done, and we explain When the installation starts the files will be disposed of, so you need to step in before hand!

Macos catalina install time update#

You will also be able to download the installer via Software Update if you haven’t yet installed it.ĭownload the installation files, but make sure you stop before the actual installation starts. MacOS Monterey, which became available to install on 25 October 2021, is available to download from the How to download old Mac OS X and macOS versions. Below we’ll look at how to get Monterey installers as well as how to get older versions of the macOS or even Mac OS X. How to get macOS installer filesĪs we said already, how you get the installation files will depend on the version of macOS you are running currently and the version you want the installer for. It goes without saying that you will need an internet connection to download the software and you may need it while installing the version of macOS if it needs to check for firmware or confirm your iCloud credentials.