- Click on the dropdown at the top and select your USB drive. Next up, click on the Choose a macOS installer button to choose the macOS Catalina update you’ve downloaded to your Mac. Once you’ve given the app both your USB drive and your Catalina file, click on the Create Installer button at the bottom of the app to begin the process.
- Step 2: Now we need to create a bootable USB drive. We have a guide for that, so make sure you follow it and move on to the next step: Create macOS Catalina Bootable USB Flash Drive Installer, Here’s How. Step 3: When you have your USB drive, turn your Mac off and insert it. Turn the Mac back on while holding the Option key.
After months of beta testing, Apple has rolled out macOS 10.15 Catalina to public users. You can download and install macOS Catalina if you have a compatible Mac. The macOS Catalina brings tons of new features such as the Apple Arcade, Screen Time, Voice Control, Sidecar, and Find My app. It has also replaced iTunes with three independent apps – Apple Music, Apple Podcasts, and Apple TV.
Is your Mac compatible with macOS Catalina?
How to Create macOS Catalina Bootable USB Flash Drive Installer Using Terminal Here’s how to create macOS Catalina 10.15 bootable USB flash drive installer for a clean install on your Mac. With macOS Catalina being Apple’s latest software release, it stands to reason that there is going to be a big interest in it.
Here’s the list of Mac devices compatible with the new software update:
- MacBook (Early 2015 or later)
- MacBook Air (Mid 2012 or later)
- MacBook Pro (Mid 2012 or later)
- Mac mini (Late 2012 or later)
- iMac (Late 2012 or later)
- iMac Pro (2017)
- Mac Pro (Late 2013 or later)
How to clean install the new software update
Upgrading to macOS 10.15 Catalina is pretty simple. Tap on the Apple icon in the top-left corner of the screen, then go to System Preferences > Software Update to download it. Alternatively, you can download it directly from the Mac App Store.
But sometimes upgrading macOS from the previous version to the latest one is not the best way. You might want to clean install macOS Catalina to give your Mac a fresh start without any issues from the previous installation. Here’s how to clean install macOS Catalina from USB drive:
Install Catalina On Usb Drive Mac
Steps to install
Install Catalina On Usb Drive Windows
- Take a full backup of all your important data. Save it to the cloud or an external drive
- You have to create a bootable USB drive. Here’s how you can create it. Make sure the USB drive is at least 8GB in size, and nothing else is stored on it
- Download the macOS Catalina installation file using this link
- Turn off the Mac and then insert the bootable USB drive
- Now turn the Mac back on while holding the Option key
- It will take you to the boot menu where you can select the USB drive. If your Mac has the T2 security chip, you have to first enable booting via external drives from macOS Recovery
- After a while, you’ll see the macOS Utilities menu on the screen. Select Disk Utility and then Continue
- Check to make sure you’ve selected the main drive of your Mac. Also ensure that the format is set as APFS or Mac OS Extended
- Now click Erase to wipe out the drive
- Once the drive has been erased, select Install macOS and then Continue. Just follow the on-screen prompts to clean install macOS Catalina
Install Catalina On Usb Drive
Once you’ve successfully installed the new software, you can transfer all your data back from the cloud or external storage drive to the Mac. Also, head over to the Mac App Store and re-install all the apps you want.