Download Mac Os Catalina To Flash Drive

  • There are many tools can help you format USB flash drive, portable hard drive, memory card or other storage device on macOS Catalina. Here, we will show you three ways to format USB flash drive, external hard drive, etc on macOS Catalina. Format USB flash drive/external hard drive with Disk Utility on macOS Catalina.
  • Jan 10, 2020 However, if you want to bypass using any of the third-party tools, you can create the Catalina OS bootable USB by accessing macOS in a virtual machine. Method 3: Use TransMac to Create macOS Catalina Bootable USB in Windows 10. TransMac is a single-purpose utility to open Mac disk image from a Windows PC.

You may need a bootable macOS Catalina USB drive to cleanly install the operating system or downgrade the macOS beta version. You can follow the steps here to create a bootable disk for any available version. However, since macOS Catalina is the current stable release, let me show you how to make a bootable installer drive.

However, if you want to bypass using any of the third-party tools, you can create the Catalina OS bootable USB by accessing macOS in a virtual machine. Method 3: Use TransMac to Create macOS Catalina Bootable USB in Windows 10. TransMac is a single-purpose utility to open Mac disk image from a Windows PC. How to Create a Bootable macOS Catalina Installer Drive Download macOS Catalina from the Mac App Store. (You may download beta versions from Apple Public Beta page, or the developer page.) Once the download completes, the macOS Installer will launch automatically.

Before You Begin:

  • Make sure you have a USB flash drive with at least 16 GB capacity
  • If there are files on it, copy it somewhere else as we will be completely erasing it
  • Your Mac should be compatible with macOS Catalina

How to Create a Bootable macOS Catalina Installer Drive

  1. Download macOS Catalina from the Mac App Store. (You may download beta versions from Apple Public Beta page, or the developer page.)
  2. Once the download completes, the macOS Installer will launch automatically. Close it.
  3. Next, open Finder and click on Applications. Right-click on Install macOS Catalina. Select Show Package Contents.
  4. Open the Contents folder.
  5. Now, open the Resources folder. Keep this folder open.
  6. Open Terminal using Spotlight Search.
  7. In Terminal type the word sudo and then give a space.
  8. From the window in step 5, drag createinstallmedia to the Terminal.
  9. Next, type --volume and give space.
  10. Connect the USB flash drive to your Mac
  11. Launch Finder and click on Go from the top menu bar. Next, click on Go to Folder. Here type /Volumes and hit enter (or click Go).
  12. Click on your Pen drive and drag it into the Terminal window.
  13. Hit the enter/return key. Enter your Mac’s password when asked. (While typing password in Terminal, you won’t see stars or typing confirmation. But keep typing it and hit the enter key when done.)
  14. Next, when prompted, type y and hit the enter/return key again.

Done!

The USB drive will be erased first, and then installer files will be copied to it. Erasing will be relatively quick. However, copying will take considerable time. Even if it is stuck at 0% or 10% for long, do not quit the Terminal window. The process is ongoing.

Signing off…

Note: If you have a Mac with T2 Security Chip (that is, Macs introduced in 2018 or later), first follow this guide to allow booting from external media.

After you create the bootable USB drive, the process to install it is simple. Make sure the USB drive is connected to the Mac. Next, click on the Apple logo from the top left and choose Restart. When you hear the startup sound or see the Apple logo, immediately press and hold the Option key. Select the bootable installer as the startup disk, and follow the instructions.

If you have issues, we have an extensive guide that addresses tips to fix when Mac Recovery Mode is not working.

The founder of iGeeksBlog, Dhvanesh, is an Apple aficionado, who cannot stand even a slight innuendo about Apple products. He dons the cap of editor-in-chief to make sure that articles match the quality standard before they are published.

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by Shirly Chen, updated on 2019-07-08 to Mac Data Wipe

USB drives and external hard drives on macOS Catalina are used for storing and backing up important data such as photos, videos, audios, images, notes, messages, music files, PDF files, Word documents, among other files. Sometimes, we delete some of these files because we do not need them, but they remain somewhere and can be retrieved from the same device or using a data recovery software. In some cases, we want to carry out this task in a permanent way, but we do not have any idea about how to do it. Here, we will show you how to permanently format and delete your files and so prevent a possible data recovery.

Three ways to format USB flash drive, external hard drive on macOS Catalina

There are many tools can help you format USB flash drive, portable hard drive, memory card or other storage device on macOS Catalina. Here, we will show you three ways to format USB flash drive, external hard drive, etc on macOS Catalina.

1. Format USB flash drive/external hard drive with Disk Utility on macOS Catalina

Disk Utility is a built-in disk management application on macOS Catalina. You can run it to format the USB flash drive, external hard drive on macOS Catalina. But, the formatted data can be recovered by Mac data recovery software.

2. Format USB flash drive/external hard drive with MacClean360 on macOS Catalina

MacClean360 also offers disk management tool, disk manager. This tool can help you securely and quickly format USB flash drive, external hard drive under macOS Catalina. The formatted data also can be recovered by Mac data recovery software.


3. Format USB flash drive/external hard drive and permanently wipe data on macOS Catalina

If we are planning to sell, donate or dispose our USB flash drive or external hard drive to another person, we should format them to clean up all data, even this is also an option if we want to recover their complete storage. Maybe, we do not know how to format our device properly and permanently to avoid retrieving our private files. here, we will help you choose the best way to format/wipe your device on macOS Catalina; you can use DoYourData Super Eraser for Mac, which is highly recommended by users.

Mac Os Catalina On Usb

DoYourData Super Eraser for Mac can help you format USB flash drive, External hard drive or other device on macOS Catalina. And it will permanently wipe all data from the USB flash drive or device. Once the USB flash drive/external hard drive is formatted by this software, all data on the USB flash drive/external hard drive will be gone forever, can’t be recovered by any data recovery method. So, before you format your USB flash drive or external hard drive with DoYourData Super Eraser for Mac, you’d better back up your data to a safe location.

The steps to format USB flash drive/external hard drive on macOS Catalina are pretty simple.

Download Mac Os Catalina To Flash Drive 3.0

Step 1: Download DoYourData Super Eraser for Mac.

Download and install this disk formatting tool for macOS Catalina. Then run it from Launchpad. And connect the USB flash drive or external hard drive with your Mac.

Download Mac Os Catalina To Flash Drive

Step 2: Format and wipe the USB flash drive/external hard drive on macOS Catalina.

Choose mode “Wipe Hard Drive”, then choose the targeted device and click on “Wipe Now” button. Then the selected USB flash drive or external hard drive will be formatted and all data on the selected device will be permanently erased.


The three ways above can help you securely and easily format USB flash drive, external hard drive on macOS Catalina. We strongly recommend DoYourData Super Eraser for Mac. It will help you format and wipe data before you sell, donate, or give away your hard drive, USB flash drive, memory card, digital camera, portable hard drive, etc.

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