In the guide, we will learn How to Create macOS Catalina Bootable Installer for Clean Installation. With macOS Catalina Bootable Installer you can simply use it to install macOS Catalina on your MAC. The steps are pretty easy, so you can simply sit back and relax and read this guide on How to Create macOS Catalina Bootable Installer for Clean Installation.
The problem now is that I have given my old iMac to my brother-in-law and I am trying to create a bootable usb so he can install Catalina to an SSD like I had it before. But the app store won't let me download the Catalina installer on an M1. Download macOS Catalina 10.15 Installer It may seem quite simple to download an update for macOS by going to System Preferences Software Update. But, the size of these updates varies based on. We can get macOS Catalina from the App Store. For this, just browse to the macOS Catalina page on the App Store. Then click the GET button or iCloud download icon. It takes time to download the macOS Catalina installer app, so make sure that you have a reliable Internet connection.
For Windows PC, you can use this guide- How To Create macOS Catalina Bootable USB on Windows: 4 Easy Steps (+Video Tutorial)
Who can upgrade?
- MacBook (early 2015 or newer);
- MacBook Air (mid-2012 or newer);
- MacBook Pro (mid-2012 or newer);
- Mac mini (late 2012 or newer);
- iMac (late 2012 or newer);
- iMac Pro (2017 or newer);
- Mac Pro (late 2013 or newer).
As you can see, the update is very democratic. Even the old computers seven years ago got a new version of macOS.
How to Create macOS Catalina Bootable Installer for Clean Installation: Things Required
- A USB Drive or an external drive with a minimum of 16GB free space.
- macOS Catalina Installer File. (Links provided below)
Easy steps to Create macOS Catalina Bootable Installer
Step 1: Download the latest version of the macOS Catalina Installer File.
You can get the latest version of macOS Catalina from the Apple App Store.
Or, you can download it from the links provided below.
After the download is complete, do not proceed to install the macOS. Instead, close the installer and go to your application and look out for the installer file.
NOTE: The macOS Catalina Installer File must be present in your application folder to proceed with this tutorial.
Step 2: Create macOS Catalina Bootable Installer
To create a macOS Catalina Bootable Installer file, we will be using Terminal from the Applications with the help of a macOS Catalina Installer File.
Now, insert your USB drive or the external drive into the USB port. Before proceeding with the installation, we need to format the USB drive. Now, open the Disk Utility and click on your pen drive and click Erase.
Title: USBFlashDrive
Format: Mac OS X Extended (Journaled).
Scheme: GUID Partition Map.
Format: Mac OS X Extended (Journaled).
Scheme: GUID Partition Map.
Once the USB disk has been erased, close the disk Utility and open the Terminal from Applications or Launchpad.
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Type the following command.
Note: USBFlashDrive at the end of the comment is the name of the USD drive that you have kept.
Enter your password and wait for the process to finish.
If you are using a Windows PC, you can use this guide- How To Create macOS Catalina Bootable USB on Windows: 4 Easy Steps (+Video Tutorial)
How to Install macOS Catalina from Bootable Installer
- Insert the Bootable Installer to your MAC.
- Restart your Mac.
- Power to the Mac and hold on to the Options button on the keyboard.
- Select the macOS Catalina alternative from the drop-down menu.
- Then, the utility window will be opened, you have to pick the disk drive utility. You need to erase the drive that you would like to install macOS Catalina into.
- Once you’ve finished then click on the Install button and then wait for the setup to complete.
How to Create macOS Catalina Bootable Installer for Clean Installation: Final Words
It was all about How to Create macOS Catalina Bootable Installer for Clean Installation. You can also make a bootable installer for macOS Catalina on Windows, but it needs a lot of time. Here is the guide that you can use- How To Create macOS Catalina Bootable USB on Windows: 4 Easy Steps (+Video Tutorial). In Mac, it has some easy actions to be carried out. If you face any problems, don’t be afraid to leave comments in the comment section below. Here are some Common macOS Catalina Problems and Solutions: 11 Key Errors and their Fix
You can also read: How to Speed Up macOS Catalina? 7 Easy Methods
Apple has just released the latest update to macOS. The update, named macOS Catalina, brings a bucket-full of new features including the ability of using iPad as an external screen for Mac. It also officially kills the 20-year-old iTunes (on Mac) and brings separate apps to manage music and podcasts while also adding a new TV app.
Other notable changes include the abandonment of 32-bit apps in favour of 64-bit apps, refreshed Reminders, Photos, Mail, Safari, and Notes apps, and the introduction of Apple Arcade among others.
Whether you should upgrade your Macs to the new macOS Catalina is entirely up to your current workflow. The change that could affect it the most is the support for 32-bit apps being officially dropped. If you rely on old apps that needs an update for the new platform, you might want to hold your upgrade until these apps are updated or you find alternatives.
With macOS Catalina, Apple has changed the way you used to download the installer. Previously, you would download the new OS installer from AppStore itself and then use that installer to make a bootable installer for later use. In Catalina, when you click the Get button in AppStore, you are taken to the Software Update screen to download the new update.
This change makes is a bit tricky to create a bootable install media like a USB stick or memory card. Albeit not as straightforward as before, but it is definitely possible to make a bootable installer for macOS Catalina. This tutorial shows how to do that.
Update – 12th November, 2020: The latest update to macOS is out now. Learn how to make a bootable macOS Big Sur installer.
Make a Bootable macOS USB Stick or Memory Card
Before you begin:
- Make sure you have a USB stick aka pen drive aka flash drive or memory card aka SD card with at least 16GB of storage.
- Take complete backup of data on your Mac.
- Make sure you have a working, strong, and stable Wi-Fi connection to download macOS Catalina.
Step 1
Due to the way you get your copy of macOS Catalina has changed a bit, we will rely on a third-party app which will help us get the installer. The app we will use for this is called macOS Catalina Patcher which is primarily used to make a patched installer for old Macs that don’t support new versions of macOS.
Download macOS Catalina Patcher, place it under Applications, launch it, and click Continue. Click Download a Copy.
Now, before you move to the next screen, click Options in the menu bar and disable ‘Auto-apply Post Install Patches.’ After that, click Start Download and wait for the download — that is around 8GB — to finish.
Update: I just read other tutorials mentioning that you don’t need macOS Catalina Patcher. You can download macOS Catalina installer from the Software Update screen and it’s placed under Applications. If you wish to go ahead with that method, you can change the path in the Step 3 from Downloads to Applications.
Step 2
Once the download is finished, you can see ‘macOS Catalina Installer” under Downloads folder. Now it’s time to erase your USB stick or memory card.
Insert the medium you wish to use for creating a bootable installer in your Mac and open Disk Utility. Select the medium from the list on left and click Erase. Select Mac OS Extended (Journaled) under Format. Type Untitled in Name field (you can choose any name here).
Click Erase and wait for the process to finish. Remember that you are completely erasing the data on this media.
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Step 3
Now you are ready to move to the final step which is to create the bootable macOS Catalina media.
Open Terminal and type the following command. Make sure you don’t leave any spaces in-between.
sudo /Downloads/Install macOS Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
Note: Replace Untitled (in bold above) with whichever name you gave in step 2.
If copying and pasting or typing this command doesn’t work, you can do the following.
Type sudo in Terminal and keep the window open. Now open Downloads folder and drag the macOS Catalina Installer file on the Terminal window. It will automatically generate the path where your Catalina installer is located.
Now, append
--volume /Volumes/Untitled
at the end of the automatically generated string and press Return key on keyboard. Note that there are two dashes (--
) before volume and a space after volume.Enter your password, press Y and press enter to start the process and let it finish — which will take about 15 minutes.
How to Install macOS Catalina from a Bootable Volume?
Once Terminal finishes the process, you can restart your Mac and when it is booting up, press and hold Option key until you see a black screen with an option to select the startup disk.
Select Install macOS Catalina and click continue. Let the installer load and once it’s finished, you should enter macOS Recovery screen which will ask you to select a user account which you know the password of. Choose your administrator account and enter its password.
Now click Disk Utility and continue. Select the volume where your current macOS is installed. The volume is usually named macOS. Click Erase. Leave the options as default and click Erase again.
After the process finishes, close Disk Utility and you will return to the recovery screen. This time, select Install macOS and continue.
Let the install process finish, which consists of a couple of automatic reboots. Once finished, you should see the initial macOS setup screen. After you are done with this on-boarding step, you will see the desktop and are all set to start using macOS Catalina on your Mac.
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Making a Bootable macOS Installer Media: Summing Up
Download Macos Catalina Installer Usb Driver
Bootable macOS installer is useful if you want to completely erase your Mac and reinstall the operating system, or if you have more than one Macs and you don’t want to spend time (and bandwidth) downloading the macOS update.
Download Macos Catalina Installer Usb Download
Making a bootable macOS Catalina installer isn’t too complicated. You can make a bootable flash drive aka pen drive aka USB stick or memory card and use it to install the latest macOS version on your Mac.
How To Create A Usb Installer For Macos Catalina
That’s it, folks. This was a quick tutorial on how to create a bootable macOS Catalina installer on a flash drive or memory card. I hope you found it useful.