Download Catalina Macos Installer

Speaking of Terminal, Armin Briegel has written on his Scripting OS X blog that the softwareupdate command has a new option in Catalina that lets you download the full installer for a specific version of macOS. This seems to work with versions of 10.14 Mojave and 10.13 High Sierra, but nothing older. For example, if you want make USB installer for macOS Catalina 10.15, download Disk Maker X 9. I use an MacBook Pro with High Sierra. Hence, I’m downloading disk maker X 7.

Customers get Software upgrades for Mac computers through the online app store ever since the release of macOS Lion. Be it a clean install or upgrade, Mac App store require you connect to the internet to download whole installation files. The online OS update is OK if you have stable broadband connectivity and enough bandwidth. Apple also provides an option for internet recovery of macOS if your computer fails to boot. But there are situations where you can’t download the OS from the Apple servers. Having a macOS offline installer or a bootable USB disk is the only solution in such scenarios.

Download macOS offline Installer

Installing macOS without internet requires a bootable USB disk. And you need to download a full-size macOS installer for making this disk. Hence, before anything, we will tell you how to download macOS offline installer directly from Apple to your Mac using a GitHub script.

Download the gibMacOS script from this link and extract it to your Mac. From the extracted folder, run the script called gibMacOS.command — it will open the Terminal as shown below.

Download Macos Catalina Installer Patcher

Wait for the script to fetch the macOS download catalogue from Apple. When the list is ready choose a number as per your OS option and press the Return/Enter key. You can use this script to download macOS Big Sur (11.1), Catalina (10.15), Mojave (10.14), and High Sierra (10.13.6). A new folder “macOS downloads” appears in the “gibMacOS-master” as you provide a download option, and the OS starts downloading as you can see in the video.

The OS gets downloaded as parts, PKGs, DMGs and other files. For macOS versions up-to Big Sur, you need to use another script “BuildmacOSInstallApp.command” in the main folder to join all the downloads and make the full macOS installer app. All you need is to drag and drop the downloaded macOS folder to the terminal window. The script will build the offline installer and save it to the same folder.

You don’t need to use the second script if your choice is macOS Big Sur. Because, for macOS Big Sur you get a full-size installer from Apple in PKG format. Double-click and open the InstallAssistant.PKG to save the “Install macOS Big Sur.app” to the Applications folder.

Apart from this, some older versions of macOS are available for direct download from Apple (Sierra, EL Capitan, Yosemite) in DMG format.

How to make a macOS bootable USB installer

It is possible to create a backup macOS installer on a DVD or USB drive but later is the best choice. Most of the Macs these days don’t have DVD slots, and the installation through a disc is very slow. Net tools lag switch for mac. Hence we discuss only about making macOS recovery installer on a USB disc. For this you need a Mac and a USB pen drive of at least 8 GB space, and a third-party app called DiskMaker.

First, download a copy of Disk Maker from the official website.
Choose a version as per your requirement. For example, if you want make USB installer for macOS Catalina 10.15, download Disk Maker X 9.
I use an MacBook Pro with High Sierra. Hence, I’m downloading disk maker X 7.
The next step is to download full macOS installer from the App Store to your Applications folder.
Run Disk Maker DMG installer and copy the app to the Applications.
The application will automatically detect the downloaded macOS as shown in the screenshot. Select “Use this Copy” if you would like to proceed with it.
Next is setting the USB pen drive for creating the bootable installer. Choose the third option ” An 8 GB USB Thumb drive.”
The app will list all drives in your system. Pick the one you would like use as macOS USB installer.
Ignore the warning message and proceed to Erase and Create macOS USB disk. Don’t forget to provide your admin password when it prompts.
Keep checking notifications tab for progress. When it completes you will find Install macOS Mojave (or High Sierra) mounted to your desktop as a USB disk.
That’s your backup. Unmount and keep the USB installer to a safe place.

Unfortunately, the above app is not compatible with macOS Big Sur 11 and above. Check the instructions on Apple website, the manual method to make macOS offline USB installer.

What is the alternative if I don’t have usable Mac at the moment?

This method is applicable when you have a Mac, and the internet recovery fails. But think about a situation when your only Mac stops to boot, and you don’t have USB installer or TimeMachine backup! Downloading MacOS DMG file might save you. If you have a macOS DMG, you can create bootable USB disk from a Windows PC — use a software like TransMac for this purpose.

Clean installing or restoring a Mac offline with USB pen drive

As said earlier, you could use the macOS USB installer to do a clean install or restore it upon a boot failure. Just connect the USB disk and press the Option/Alt Key when you hear the boot sound. The Mac will then display all the startup disks available.

Pick the USB drive starting with the label “Install macOS” and follow on-screen instructions to complete the installation. If you need, use the Disk Utility to format the drive for doing a clean install.

In this post, we’ll provide download macOS Catalina ISO for VMware & VirtualBox. We enough talked about macOS Catalina 10.15 finally macOS Catalina is out. With is incredible features and now available on Mac App Store. As facing huge issues on the new operating system, after the passage of time finally, all issues bugs fixed. All the expectations are full filled with fixing the errors, bugs. And what the users expected completed. If you remember when macOS Catalina released. There was doubt about the installation process, users were doubting on the security problems. But finally, after an experiment, Apple fixed all of them. Now enjoy using macOS Catalina on Windows PC, or anywhere else.

Though macOS Catalina with it’s handy features attract many users. But again let’s see what will be the changes in future updates to it. To be more attractive and compatible with computers. When talking about macOS Catalina installation on the real Mac, I think it can not be a huge deal. But to complete our experience we have to install it on different platforms of Windows PC with an ISO file or VMDK file. Simply we can check the features all things through updating macOS Catalina in Virtual machines.

Related:Download macOS Catalina Torrent Image – Latest Version

What is macOS Catalina ISO

We are expecting to do many ways to get something extra knowledge, but installing macOS Catalina on Windows PC is not the only way of macOS Catalina installation. But you can install it on VMware, VirtualBox on Windows PC, these ways are suitable for a Windows user to be touched with macOS Catalina. Without installing macOS Catalina with VMDK file on Windows PC through Virtual machines on Windows PC. We found two other separate ways to install it on VMware, or VirtualBox on Windows using the ISO file. Also, you get a macOS Catalina Virtual machine file, or still, the macOS Catalina files remain in the same place.

Download Macos Catalina Installer App

Download macOS Catalina ISO For VMware & VirtualBox

When getting an idea on what is VMDK file? or what is ISO file for VMware & VirtualBox? Absolutely there are some changes in it. Like “VMDK” used for “Virtual Machine Disk File”, and “ISO” is a complete copy of everything stored on a physical disk. For example, we use macOS Catalina with VMDK & ISO file for Virtualization purposes but in two different methods. And for installing it on a real Mac we use macOS Catalina DMG file or the file which you are getting from Mac App Store is much different than the VMDK file and ISO file. Because of the VMDK file and ISO file created by us. This file is specifically created for VMware & VirtualBox installation purposes. This ISO file will be used for installing on VMware & VirtualBox but in other methods.

However, we successfully installed macOS Catalina on VMware & VirtualBox using the ISO file. And perfectly it is working without any error. Due to security reasons, we uploaded on two different platforms Google Drive and MediaFire. When you don’t have any Mac computer. But have enthusiastic to download the file for Virtualization and install it. And we have made this easy to access online to the files every time. By staying on our site we always try to get the latest update for you when it released. Be ready to install it on your Windows PC by VMware & VirtualBox. Also, update macOS Catalina to the latest version on virtual machines. But there aren’t any differences between updating on VMware and VirtualBox. These the requirements for a Virtual machine, whether that is VMware or VirtualBox.

Download macOS Catalina ISO File (Latest Update)

You can download macOS Catalina ISO file. For the extraction of the file, you can use WinRAR & 7Zip.

macOS Catalina 10.15.5 Final ISO (19F101) – Latest Version

macOS Catalina Beta 10.15 (19A4871) ISO

macOS Catalina 10.15.7 ISO File (2021) (Coming Soon or Get Early Access From Below)

If you want the macOS Catalina 10.15.7 which was released in 2021, you can get early access to not only this but also many more files

Get Early Access

Don’t want to wait, get early access to all the latest version of macOS files and images.

Install macOS Catalina on Windows

Macos Catalina Installer Dmg Download

Here is how to do the installation of ISO file on VMware & VirtualBox

There are some differences between the installation of macOS Catalina on VMware and VirtualBox check below content.

Bottom Line

That’s all, about macOS Catalina ISO File for VMware & VirtualBox. Prepare the file and start the installation, on VMware and VirtualBox. Again if there is remaining something we are happy to hear from you in the comment section. Also, share your feedback with us too.

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