If your Mac supports Catalina, the best way is to download it directly from Apple. Open the Mac App Store. Search for "macOS Catalina".
Need the DMG for a virtual machine or older Mac? Drop a comment below, and I'll help you find the right build number.
APFS (or Mac OS Extended (Journaled) if using an older mechanical hard drive) Scheme: GUID Partition Map
Before we dive into the nitty-gritty details, let's quickly understand what we're dealing with. When you want to perform a clean installation of macOS (wiping your hard drive and installing a fresh copy of the operating system), a DMG file is your best friend. If your Mac supports Catalina, the best way
Now that you have your bootable media, follow these steps to wipe your drive and install Catalina:
Use the arrow keys to select and press Enter . 2. Wipe Your Internal Storage Drive
The Link will automatically trigger the Mac App Store application. Click the or Download button. Need the DMG for a virtual machine or older Mac
If you are looking to run macOS Catalina in a virtual machine (e.g., VirtualBox or VMware) rather than on bare metal, you may need a pre-created, full installer DMG.
Select using your arrow keys and press Enter. Phase 2: Wipe the Target Hard Drive Select Disk Utility from the macOS Utilities menu window.
Select your main internal hard drive (usually "Macintosh HD") and click . (Format: APFS ). Close Disk Utility and select Install macOS . When you want to perform a clean installation
: A minimum of 20 GB of free space on your target hard drive.
Open your web browser and click this official link: Get macOS Catalina on the Mac App Store.