Making A Macos Bootable Usb



#1552: macOS 11.2.2 defangs non-compliant USB-C hubs, starting seeds with HomeKit, do you still need a bootable backup? If you’re using a recent MacBook Pro or MacBook Air with Big Sur and a powered USB-C hub or dock, be sure to read our coverage of macOS 11.2.2, which protects those Macs from damage caused by non-compliant USB-C gear. The macOS installation process will start and your Mac will reboot a few times. Once finished, you should see the macOS setup screen. After you are done with onboarding, you will see the desktop and are all set to start using macOS Big Sur. The same bootable media you just made can be used to install macOS Big Sur on all your (compatible) Macs. For those who failed to create bootable USB with TransMac, take a look at UUByte DMG Editor. I managed to create two bootable USB from macOS Mojave and Catalina DMG file and successfully installed them on respect Mac. First, make sure the dmg file you downloaded is valid. TransMac creates a macOS USB bootable drive warning. Once you complete the steps, you can now insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version, which can be Sierra, Catalina, Big Sur, or higher. Create a GPT partition on USB flash drive. A fully Bootable DOS environment you can take wherever you want. I will use this in a later date to show you how to flash your bios. This is also especially important for computer techs updating a mass of computers manually because he or she can pop in the flash drive with the dos environment and any updates he needs to run and quickly execute them.

Our favourite way, and the fastest method, for getting up and running with Kali Linux is to run it “live” from a USB drive. This method has several advantages:

  • It’s non-destructive — it makes no changes to the host system’s hard drive or installed OS, and to go back to normal operations, you simply remove the “Kali Live” USB drive and restart the system.
  • It’s portable — you can carry Kali Linux in your pocket and have it running in minutes on an available system
  • It’s customizable — you can roll your own custom Kali Linux ISO image and put it onto a USB drive using the same procedures
  • It’s potentially persistent — with a bit of extra effort, you can configure your Kali Linux “live” USB drive to have persistent storage, so the data you collect is saved across reboots
Making A Macos Bootable Usb

In order to do this, we first need to create a bootable USB drive which has been set up from an ISO image of Kali Linux.

What You’ll Need

  1. A verified copy of the appropriate ISO image of the latest Kali build image for the system you’ll be running it on: see the details on downloading official Kali Linux images.

  2. If you’re running under Windows, there is not one tool that is considered the overall best for imaging. We recommend Etcher, however Rufus is another popular option. If one does not work for you, consider the other.

  3. A USB thumb drive, 4GB or larger. (Systems with a direct SD card slot can use an SD card with similar capacity. The procedure is identical.)

Kali Linux Live USB Install Procedure

The specifics of this procedure will vary depending on whether you’re doing it on a Windows, Linux, or macOS/OS X system.

Creating a Bootable Kali USB Drive on Windows (Etcher)

  1. Plug your USB drive into an available USB port on your Windows PC, note which drive designator (e.g. “F:') it uses once it mounts, and launch Etcher.

  2. Choose the Kali Linux ISO file to be imaged with “select image” and verify that the USB drive to be overwritten is the correct one. Click the “Flash!” button once ready.

3. Once Etcher alerts you that the image has been flashed, you can safely remove the USB drive and proceed to boot into Kali with it.

Apple has just released the final version of macOS Big Sur to the public. You can start upgrading your compatible Mac devices by downloading Big Sur from the App Store or Settings > Software Updates. But if you prefer to completely wipe out your Mac and do a fresh install of macOS Big Sur, you will need a bootable media.

I perform a fresh install every time Apple releases a major macOS version – which usually happens once a year. This time too, I will update my Macbook Air by performing a fresh install. And to do that, I will make a bootable SD card. You can also use a USB stick aka pen drive aka flash drive and perform a fresh install.

In this quick tutorial, I will share how I make a bootable macOS memory card or USB stick, wipe my Mac, and perform a fresh install. You will need a stable internet connection and a storage media with minimum 16GB space. Before you begin, make sure you have taken backup of your Mac.

Step 1: Download macOS Big Sur

Open App Store and search for macOS Big Sur. Click Get and the Software Update window will open. Click upgrade now and it will start downloading the macOS update. If you don’t see macOS Big Sur in App Store, follow this link and choose open link in App Store.

The installer is 12GB so be patience.

Once it finished downloading, the macOS installer is placed under Applications and will run automatically. Close the setup window.

Step 2: Preparing the Storage Media

Insert the storage media you would like to use. I use a 64GB micro SD card with my MacBook Air. You can use a USB-C to USB adapter for Mac models without USB A ports and memory card slot.

Open Disk Utility.

Select the storage medium you just connected from the list on left and click Erase. Select Mac OS Extended (Journaled) from Format dropdown. Type BigSur or any other name you like. Make it simple because you will use this name in the next step.

Click Erase and wait until the media is erased.

Step 3: Making the Bootable Media

Now open Terminal and type the following command. Make sure you don’t leave any spaces. Replace BigSur with whatever name you chose in Step 2.

Press enter.

Enter your password, type Y and press enter again. The process takes roughly 20 minutes. After it’s finished, you will notice that the name of your USB stick/SD card has been changed to Install macOS Big Sur.

Step 4: Installing macOS Big Sur from Bootable Media

Right. Now you have a Big Sur bootable media. It’s time to start the installation process.

Usb

Restart your Mac. When it’s booting up (right after the chime sound), press and hold Option key until you see a screen with an option to select the startup disk.

Select Install macOS Big Sur and click continue. Let the installer load.

Making A Macos Bootable Usb Windows 10

Now you will see the macOS Recovery screen which will ask you to select a user account which you know the password of. Choose your administrator account and enter password. Note that this is the user on your current macOS setup.

Click Disk Utility and continue. Select the volume where macOS is currently installed on your Mac. Click Erase. Leave all options as default. Click Erase again.

Create A Macos Boot Usb In Windows

After the process finishes, close Disk Utility and you will return to the recovery screen. Choose ‘Install macOS’ this time and click continue.

The macOS installation process will start and your Mac will reboot a few times.

Make A Macos Mojave Bootable Usb

Once finished, you should see the macOS setup screen. After you are done with onboarding, you will see the desktop and are all set to start using macOS Big Sur.

The same bootable media you just made can be used to install macOS Big Sur on all your (compatible) Macs. This approach helps save bandwidth if you have more than one devices while also letting you erase all data and perform a clean install. It will also come in handy as a recovery media if your Mac software misbehaves in future.

That’s all, folks. This was a tutorial on making a bootable macOS Big Sur installation media. I hope you found it useful and I’d like to thank you for reading.

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