In this post, I’ll show how to Create macOS Catalina Bootable USB Installer via TransMac. With the macOS Catalina out, more and more users are heading towards it and installing it on different operating systems. Some of the examples are install macOS Catalina on VMware on Windows, install macOS Catalina on VirtualBox. There are two other different new methods. That is install macOS Catalina on VMware [New Method], install macOS Catalina on VirtualBox [New Method]. These are some of the most popular and also common examples of installing macOS Catalina on Windows. Apart from it, there are many installations and users could install on different places and different platforms. Here’s are three different ways we’ve provided to do.
The Recovery partition in MacOS Catalina stores snapshots of your Mac so if you install an update and find one of your apps is not compatible with it, you can just roll back to the previous version. Dec 02, 2019 How to Create a Partition on Mac to Install MacOS Mojave 10.14, 10.14.4; Best Partition Manager for Mac - macOS sierra, EI Capitan; How to Remove Windows Boot Camp Partition From Mac on Catalina, MacOS Sierra, EI Capitan,Yosemite; How to install windows 8 on Mac: with OS X Yosemite.
Now for installing macOS whatever the version, we’ll need the installer files. While the macOS Catalina DMG file is easy to obtain from the App Store, it’s pretty easy to do it from a Mac but what happens when your Mac is not working or have some problem with its operating system. Instead, you’ve Windows in approach and would like to create macOS Catalina Bootable USB Installer completely on Windows. Or as the macOS Catalina is out, chances are you’ve lots of Mac and would like to create macOS Catalina bootable USB installer on Windows.
For installing most systems like Windows 10 and others, creating a bootable USB installer is the first step and also the most important step. Now creating a bootable USB isn’t as easy as it looks like and in some cases, I’ve lost many USBs in the procedure. The process requires some files specifically the operating system installer file and other differs for the process like if you’re creating a bootable USB for Mac, it’s a little easy, but if you’re creating a bootable USB installer for Hackintosh, it’s a bit trickier and requires some additional files but can be definitely done.
- Related:How to Create macOS Catalina USB Installer – Hackintosh
Creating a bootable USB installer can be done in different ways. Just like we’ve previously shown a few ways to create macOS Catalina USB installer which would work probably for Mac and Hackintosh even. First, we created manually via Disk Utility and Terminal and also we provided the supporting files and the next method which we did was with Disk Utility, Terminal and also Clover. These were the two methods we did to create bootable USB installer for macOS Catalina.
For those who aren’t familiar with, Hackintosh is a simply process of installing macOS on a non Apple hardware which can be Windows. While we’ve already done some instructions for creating a bootable USB installer for Mac and Hackintosh, but for some reasons, it isn’t working for users, that’s why we’ve come up with a new post which is how to Create Bootable USB installer for macOS Catalina via TransMac. This process works for both creating bootable USB installer for macOS Catalina for Hackintosh and also for Mac.
With those in mind, whoever would like to install macOS Catalina or other version on Mac or install macOS Catalina or other version on Windows, we’ve prepared complete instructions to create a bootable USB installer for macOS Catalina. This procedure works for everyone but for those who are making it for Hackintosh remember that the USB and primarily Hackintosh or installing macOS only works with Intel-based CPUs. With that said, let’s jump into it.
What You’ll Need
For this process, we’ll need a couple of important files.
- A 12GB+ USB
Create Bootable USB Installer For macOS Catalina via TransMac
There are several apps and ways to create bootable USB installer. For this example, we’ll use TransMac.
TransMac is a third-party Windows software that copies and manage files and folders on Apple systems, including Mac hard drives, USB flash drives, and other. As well as open and burn disc images and .dmg and .sparseimage files. It’s shareware which you can try for free for 15 days.
TransMac for Windows can open, erase Macintosh disk drives, USB flash drives, CD/DVD/Blu-ray media, DMG, DMG part, sparse bundle and sparse image files. Some of the features are create, compress and expand Mac dmg disk images, built-in CD/DVD burner to burn ISO and DMG files on Windows.
First and foremost, connect your USB and open TransMac. When the USB is shown, right click on it and select Format Disk For Mac.
Format Disk For Mac
Accept the warning by clicking on Yes.
Name the volume and click on OK.
Name The Volume For Mac
At the last warning of formatting the disk, click on Yes.
Last Warning of Formating Disk
After the disk is formatted, right click on the USB and select Restore with Disk Image.
Accept the warning by clicking on Yes once more.
Warning Pop Up Message
Then click on the three dots to browse the macOS Catalina DMG and select it.
Choose the macOS Catalina DMG and click on OK.
Ok Restore Disk Image to Drive
Hit Yes on the pop and it will start creating the USB so it will take a considerable time.
Last Warning
After that, you’ll see the success message, and that’s now done.
In the end, download and copy and paste these files into the EFI Partition in the USB.
Partition Mac For Catalina Bay
The USB drive is now completely ready for installing macOS on Windows or on Mac itself. So that’s how to create bootable USB Installer for macOS Catalina on Windows 10 with TransMac. This works perfectly now.
![Partition Mac For Catalina Partition Mac For Catalina](https://i1.wp.com/www.gottabemobile.com/wp-content/uploads/2019/05/Create-a-Partition-to-Install-macOS-10.15-on-.jpg?resize=740%2C502&ssl=1)
That’s it. If there’s some problem or suggestions, we’re happy to answer. Let us know in the comments down below.
If you've always wanted to partition your Mac's hard drive so you can run a separate operating system — including the launch of macOS Big Sur — in tandem with your current one, it's surprisingly easy to do so thanks to Apple's built-in disk utility program. Here's how to partition your Mac.
Partition Mac For Catalina Islands
What is a disk partition?
Partitioning your Mac is basically splitting your hard drive into separate, usable systems. It makes it possible to run two separate operating systems on one device, like Windows and macOS, or two versions of macOS (like Catalina and Big Sur).
Note: If you want to run Windows on your Mac, Apple's Boot Camp assistant will automatically make a partition for you. Here's how to install Windows.
It is important to note that partitioning your hard drive also splits up your available hard drive space. Each partition will take up a portion of your usable storage. So, if you are running low on storage capacity on your hard drive, we don't recommend partitioning.
Before you start
The most important thing to do before making any changes to your hard drive is to back it up. Seriously. Back it up. Please. Time Machine is the easiest way to back up your data if you don't already have another system in place.
Second, make sure you have enough free disk space to properly run a secondary operating system. Shoot for at least 30GB free, though I recommend closer to 50GB if you have it available.
Download Catalina For Mac
How to create a partition on your Mac
- Open Finder from your dock.
- Select Applications.
- Scroll down and open the Utilities folder.
- Double-click to open Disk Utility.
- Select your hard drive in the Disk Utility window. It will be the first drive on the list. It might be named 'Fusion,' or 'Macintosh HD.'
- Click on the Partition tab. You will be prompted to either add an APFS volume or a Partition.
- Click Partition.
- Click the Add partition button it looks like a plus (+) symbol.
- Change the size of the partition you wish to use by dragging the resize controls. The used space is represented in blue.
- Name the new partition.
- Specify which file system format you want to use. If you're running macOS 10.13 or higher, you'll want APFS. If you are running macOS 10.12 or older, you'll want Mac OS Extended.
- Click apply.
Disk Utility will check the disk and make changes. This will take several minutes.
How to switch partitions
You can switch to the new partition, install the current macOS, and then download and install macOS Catalina from there.
- Click the Apple icon in the upper-left corner of your screen.
- Select System Preferences from the drop-down menu.
- Select Startup Disk.
- Click the Lock in the lower left corner of the window to unlock and make changes.
- Enter your system admin password.
- Click OK.
- Select your partition drive.
- Click Restart.
You can also restart your Mac and press the Option Key when you hear the startup chime. This will take you to the Startup Manager and you can select your drive from there.
You will then be asked to install macOS. This will install the latest available macOS onto the partitioned hard drive. You may have to install an older version of macOS before updating it to the more recent version you want to run.
If you are testing a beta version of macOS, you'll first install whatever the current version is. Then, you can then install the macOS beta.
How to download the developer beta of macOS Big Sur
Once you've updated your partitioned Mac with macOS Catalina, you can download and install the developer beta of macOS Big Sur. You need a developer account and probably some patience. Developer betas are often a bit complicated to install. We've got a guide to help you out.
Any questions?
Do you have any questions about installing a partition or downloading a new operating system onto a partitioned drive? Let us know in the comments. If you're having trouble partitioning your hard drive, be sure to check out our forums for help!
Updated June 2020: Updated for the developer beta of macOS Big Sur.
macOS Catalina
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