Can I have 2 operating systems on my Mac?

It’s possible to install two different operating systems and dual-boot your Mac. This means you’ll have both versions of macOS available and you can choose the one that suits you on a day-by-day basis.

How do I install two versions of OSX?

1. Launch System Preferences.
2. Open the Startup Disk pane. You’ll see at least two systems listed there: the old one (macOS 10.13.
3. Click on the lock icon to make changes and enter the admin password when prompted.
4. Select macOS 10.13. x as the default operating system.
5. Close the lock to prevent further changes.

How do I install two operating systems on my Macbook Pro?

Preparing to install two operating systems on one hard drive

1. Back up your Mac.
2. Clean up your drive.
3. Create a second partition on your hard drive.
4. Step 1: Install macOS Sierra on the first partition.
5. Step 2: Restore your backup data to the partition with macOS Sierra.
6. Step 3: Install macOS High Sierra on the second partition.

How do I install OSX Catalina on a separate partition?

How to Download Catalina

1. Launch System Preferences from your Mac’s Dock, from the Applications folder, or from the Apple menu bar ( -> System Preferences…).
2. Click Software Update.
3. Your Mac will check for updates and show that macOS 10.15 Catalina is available. Click Update Now to download the installer.

Can I run Mojave and Catalina?

You can run Mojave and Catalina on the same Mac in a dual boot setup and without reformatting or repartitioning your Mac’s storage thanks to APFS, the file formatting system that Apple made ubiquitous with Mojave’s release.

What’s the difference between Apfs and Mac OS Extended?

Apple File System (APFS): The file system used by macOS 10.13 or later. Mac OS Extended: The file system used by macOS 10.12 or earlier.

How do I convert Apfs to OSX Extended?

1. Go to Applications > Utilities > Disk Utility.
2. Select the drive that you want to convert/revert from APFS to HFS+.
3. Click Erase on the top of the Disk Utility window.
4. Complete the required name, select Mac OS Extended (HFS+) as the new format and then click the Erase button.

Can you partition a Mac?

Create a partition on a Mac Be sure to back your files up before continuing. Launch Finder, click Go, select Utilities, then double-click Disk Utility. Select the Volume you want to partition, then click the Partition button. Click the + icon, then rename the partition you want to create.