If you have more than one Mac you want to upgrade to macOS 10.15 Catalina but don't want to waste so much bandwidth downloading it for each machine, one option is to create a bootable installer on a spare USB flash drive. Here's how to do it with the Terminal.

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One of the problems with the release of a major operating system update like macOS Catalina is the amount of times it has to be downloaded. As Apple usually intends each Mac or MacBook needing to be updated to download it, the process isn't really efficient enough for instances where many Mac desktops need the upgrade, like in a school or business if there isn't device management or macOS Content Caching for whatever the reason.

The strain could also be felt by users who own multiple Macs but also have a limited data allowance from their Internet provider, or a small amount of bandwidth that could make updating multiple machines take a very long time and saturate the available connection.

While in the olden days it was possible to get the software update on physical media, Apple doesn't offer that option anymore. However, it is still possible to create your own media, such as a spare USB thumb drive, that can do the same job.

The first hurdle is to actually get the macOS Catalina installer onto a Mac. This is an unavoidable part of the process and will require just over 8 gigabytes of drive capacity to store.

Go to the Mac App Store and search for Catalina using the search bar, then click on View next to the macOS Catalina listing. Alternately, open the Mac App Store Preview page for macOS Catalina here then select View in Mac App Store.

Click on Get. This will load up the Software Update utility, which will ask if you want to download macOS Catalina. Click Download.

After the download has finished, macOS will automatically start the installer. Press Command-Q to quit the installer before it continues, as the update will be deleted upon installation.

Creating the Bootable Drive

You need an external drive to turn into a bootable version, and since it needs to be portable, your best choice is a USB thumb drive with a capacity of 16GB or more. Be aware that the drive will be wiped as part of the process, so ensure there isn't any precious data on the drive that could be lost if it isn't backed up elsewhere.

Connect the external drive to your Mac, and make a note of the external drive's name as it appears within macOS. This is important, as using the wrong name could lead to another connected drive being wiped by mistake.

Open Terminal within the Utilities folder within the Applications folder and enter in the following command by copying and pasting it directly into the window. Make sure to change the element titled 'USBdrive' for the name of the drive you intend to become the bootable installer.

Once pasted and corrected, press enter, then enter your password for macOS and press enter again.

Terminal will then warn of the USB drive being wiped as part of the process. Type 'Y' and press enter. Leave the Mac alone as it formats and copies over the installer.

Once Terminal says 'Install media now available,' it is safe to right-click the removable drive on the desktop renamed 'Install macOS Catalina' and select the 'Eject' command. It is now safe to remove the drive from the Mac.

Upgrading another Mac

Before proceeding, ensure there are adequate backups available for the Mac you are about to upgrade before the process starts.

With the target Mac you want to upgrade turned off, connect your external drive. When turning on the Mac, hold down the Option key on the connected keyboard to bring up the Startup Manager.

The Startup Manager is used to boot from a different drive from the default. In this case, select 'Install macOS Catalina.'

The Mac will then bring up a macOS Utilities window. To perform a straight update, select 'Install macOS' and follow the prompts.

The macOS Utilities menu also allows you to erase the Mac's drive, which you can optionally do if you do not wish to save any of the data and want a completely clean slate for the installation.

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This year 2019 Apple WWDC announced some cool products and demonstrates that they are the best ever. One of the item is up and next generation of Desktop Operating system called macOS 10.15 Catalina Beta. Since this product announced and launched the things are definitely heating up for Mac user, and clients will search out to get it on their hand. So, we try to provide the latest contents for our user

We provide a complete guide and most Proficient Method to download and install MacOS 10.15 Catalina Beta on your Mac multiple method to install it.

Here are excellent highlights with the macOS Catalina,

1. Premiering on Mac. Apple TV
2. Apple Music on the Mac
3. Listen to Podcast on Mac
4. Extend Desktop with iPad
5. Screen Time Features on Mac
6. Your Favoriate ipad Apps on the Mac
7. Privacy and Security ( Increased)
8. Apple Pencil on the Mac
9. Limits Communication

For Download MacOS Catalina Beta you need to take the Backup of your Mac then you download and install in on your Mac.

Read More:

How To make Backup Of your Mac with Machine ?

Before you start, Make sure that you took the backup of your data because download MacOS Catalina Beta is so easy and simple. Every time you want to bring changes or upgrade your Mac make sure that you take the backup, once it gone never come back the data as it was before so make sure that your Mac is completely up to date.

Step 1. Attach an external hard disk to your Mac or USB, Thunderbolt Cable

Step 2. Now you can click on the Apple icon on the lift corner of your screen and select system preferences

Select System Preferences

Step 3. once you select system preference on system preference, select Time Machine

Step 4. Here you can select the Backup disk you want to take backup on it

Step 5. It takes 2 mins to be formatted and be ready for backup by Time Machine.

How to Download macOSCatalina Beta 1 on your Mac

At this moment to approach and get macOS 10.15 Catalina on your Mac is the Developer Tool. If you wait till the July 2019, Apple company will release the Public MacOS Catalina Beta and at the end of this year 2019 you will get the MacOS 10.15 Catalina Beta so you to be patient .

To download MacOS Catalina you need to have Apple Developer Account, if you don’t have this account you need to sign up for it then download MacOS Catalina so follow the instruction carefully.

Also Read:

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Step 1. Click on Apple Developer program website

Step 2. Click on the Download Buttons

Step 3. Login with your Apple Developer Account

Step 4. When you login in your account then scroll down click on download button of MacOS 1015 Catalina Beta, it will not take any time for downloading

Step 5. Now open the download folder then click on macOS Catalina Developer Beta Access Utility

Step 6. You need to Double Click macOSDeveloperBetaAccessUtility.pkg to run the installer.

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When the installer finished the downloading, the window of app store will be open automatically to update section. You need to click on the update to download and install developer beta software, once it done then the system will restart automatically.

How to Install The macOS Catalina Developer Beta

After the downloading of MacOS 10.15 Catalina Beta you need to install it on your Mac but it will be start automatically so follow the installation steps.

Step 1. Click the Continue Button

Step 2. Agree to the Term and Condition of Apple

Step 3. Now click on Install Button

It will be reboot to install macOS Catalina Beta, after that it will be shown black screen with Apple’s logo for installation you need to be patient

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Also Read: How To Open BitLocker Encrypted Drive/USB/SD Card On MacOS And Mac OS X

Downloader For Mac

macOS Catalina wallpaper – (source – Apple.com)

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Conclusion:

Hope you download macOS Catalina Beta on you Mac and Installed it Successfully, If you face any problem during the download and install you may leave a comment on the comment box and you can share your ideas and experience in our website by commenting

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