Mac Os Boot From Thumb Drive

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These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

Download macOS

Apr 01, 2020  If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.

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Find the appropriate download link in the upgrade instructions for each macOS version:

macOS Catalina, macOS Mojave, ormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.

Mac Os Boot From Thumb Drive

OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.

Use the 'createinstallmedia' command in Terminal

  1. Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
  2. Open Terminal, which is in the Utilities folder of your Applications folder.
  3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.

    High Sierra:*
    El Capitan:
  4. Press Return after typing the command.
  5. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
  6. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created.
  7. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument, similar to the way this argument is used in the command for El Capitan.

Use the bootable installer

After creating the bootable installer, follow these steps to use it:

  1. Plug the bootable installer into a compatible Mac.
  2. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
    Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it.
  3. Choose your language, if prompted.
  4. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
  5. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

Mac Os Boot From Thumb Drive Download

For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:



High Sierra:

El Capitan:

Jun 08, 2020 • Filed to: Solve Mac Problems • Proven solutions

USB drives, pen drives, or thumb drives – no matter what you call them, they all perform the same job related to data storage and management. In a matter of a few years, pen drives have drastically replaced CDs and other storage units. Now, we all use USB drives to transfer our data or maintain its backup. Though, there are times when we wish to format pen drive on Mac. You can do it to erase drive data, troubleshoot a problem, reformat it, and do so much more.

Since Mac gives a one-stop solution to do it all, you won’t face any problem like pen drive not formatting on Mac. To further help you, we have come up with this detailed guide on how to format pen drive on Mac with other related solutions.

Dec 05, 2019  To use a keyboard shortcut, press and hold one or more modifier keys and then press the last key of the shortcut. For example, to use Command-C (copy), press and hold the Command key, then the C key, then release both keys. Mac menus and keyboards often use symbols for certain keys, including modifier keys: Command (or Cmd) ⌘. Jun 27, 2019  Keyboard shortcut Hold Command + Tab and you will see a bar appear on your screen with all open apps. Continue to hold Command and then press Tab to go through each application. You can hold Command and press Shift + Tab to go in the opposite direction. Fast switch apps keyboard mac. Jul 19, 2019  Download Button Shortcuts from the Mac App Store. It will run in the menu bar and on first launch, the app will guide you through its features. Once you’ve gone through the guide, switch to whichever app it is you want to use. When you need to use a keyboard shortcut but cannot remember what it is, tap the Command key twice. Turn on fast user switching. On your Mac, choose Apple menu System Preferences, click Users & Groups, then click Login Options. Click the lock icon to unlock it. Enter an administrator name and password. Select “Show fast user switching menu as,” then choose how the fast user switching menu looks in the menu bar. Apr 20, 2010  This tip shows you a quick way to switch from one app to another, without taking your hands off the keyboard at all. All you need is the Command key,.

Part 1. What is a Pen Drive or Thumb Drive?

Thumb drives (which are also known as USB or flash drives) are extensively used to store data via USB connectivity. As almost all the computers (be it Windows or Mac) have a universal USB slot, it makes the use of flash drives so effortless. You can just plug it into any system and access the stored content in no time. A pen drive can also be used as an installer at times or to maintain a backup of your data.

  • You might like to erase all the data present on your pen drive at once.
  • Formatting can also help you troubleshoot certain connectivity issues with your flash drive.
  • If the USB drive has been infected by a malware, then formatting it can fix the issue at times.
  • It can also help you reformat the pen drive and change its file system as well.
  • It will let you defragment the drive and make more free space in it.

Part 2. How to Format Pen Drive on Mac

Just like Windows, Mac also allows a seamless solution to do pen drive format. To do this, you can take the assistance of Disk Utility, which is a dedicated system component in Mac. It can help you manage system partitions, erase an external unit like a thumb drive, and even repair your disk. To learn how to format a pen drive in Mac, you can follow these simple steps:

  1. Firstly, connect your flash drive to the Mac by inserting it to the correct USB slot. Also, go to Mac’s Finder > Applications > Utilities and launch “Disk Utility” from here.
  2. As the Disk Utility window would open, you can view the connected pen drive labeled under the “External” devices on the left. Simply select your pen drive to view its storage settings on the right.
  3. In order to format the pen drive, you need to click on the “Erase” button on its toolbar.
  4. This will open the following pop-up menu. From here, you can change the name of the pen drive, its format, and scheme. There are different kinds of formats available for thumb drives, which are discussed later in this post.
  5. Lastly, you can change the scheme for the connected pen drive as well. While GUID and Master Boot support both Windows and Mac, the Apple Partition Map would only run on Mac.
  6. After making the appropriate selections, just click on the “Erase” button, and wait for the pen drive to be formatted entirely.

That’s it! In the end when you are informed that the thumb drive has been successfully formatted, you can unmount it safely from your Mac.

Let's get the ways of formatting USB to FAT32 together.

Video Tutorial on How to Format a USB Flash Drive on Mac

Part 3. How to Check the Pen Drive Format

A lot of users choose to format pen drive to change its format. If you also have the same requirements, then consider checking the existing pen drive format first. Chances are that it might be of an ideal format beforehand. Here’s how you can check the format of thumb drive on Mac.

  1. Simply attach the pen drive to your Mac by inserting it into the USB slot.
  2. Launch Finder once the pen drive is detected by Mac. You can see its dedicated icon on the left panel.
  3. Select your pen drive from here and right-click to get its context menu. Click on the “Get Info” option to proceed.
  4. This will display a pop-up with crucial details related to the connected pen drive. Here, you can view the format of the selected USB drive.

While formatting a pen drive, users get an option to change its format. Ideally, Mac supports different pen drive formats for a USB drive that you can pick from, as per your convenience.

  • ExFAT: The Extended FAT is one of the most common formats out there. It works smoothly on every major platform like Windows, PlayStation, Xbox, and even Linux.
  • FAT: While the File Allocation Table format also supports cross-platform compatibility, it is not as reliable as exFAT. For instance, it supports the maximum file size of 4 GB. Ideally, it is best-suited for systems with FAT32.
  • OS X (Journaled): This is the traditional native file format for macOS, which is commonly known as the HFS+ format. Apart from storing data, it can also be used as a Time Machine backup.
  • OS X (Case-sensitive, Journaled): This is similar to the previous option, with a case-sensitive feature. Although Mac is not case-sensitive, systems like UNIX are.
  • OS X Extended (Journaled, Encrypted): If you want to protect your thumb drive, then go for this option. It is similar to the OS X Journaled version with encryption. That is, users are required to authenticate (via password) to access it.
  • OS X Extended (Case-sensitive, Journaled, Encrypted): This is an encrypted and case-sensitive version of OS X Journaled.

Part 4. How to Remove History on Mac Firefox

By now, you must be able to reformat thumb drive on Mac without any trouble. If you are finding it hard to access the pen drive content on Mac, then don’t worry. The operating system is pretty user-friendly and will let you access the connected pen drive without any trouble.

  1. Firstly, make sure that the pen drive has been properly inserted on your Mac’s USB slot. As soon as the pen drive is detected, you will get its shortcut on the desktop. Just double-click it, or right-click and open it.
  2. Alternatively, you can also access the USB drive content via Finder as well. Go to Mac’s desktop and click on Finder > File > New Finder Window. This will open a new Finder Window on your Mac.
  3. On the left sidebar, you can see all the shortcuts and partitions. Under the “Devices” or “External” tab, you can see your pen drive’s icon. Just double-click it to open its file system.
  4. In the end, after when you have finished working with the pen drive, you can unmount it. Select the pen drive’s icon and right-click it to get its context menu. Click on the Eject option to safely remove it.

Part 5. How to Recover Deleted History on Mac

If you are lucky, then you would be able to format pen drive on Mac without facing any setback. Though, chances are that you might get the “Pen Drive Not Formatting” error on Mac as well. Razer deathadder chroma software mac. Try following these simple yet smart solutions to fix the pen drive not formatting issue on Mac.

• Reinsert the USB drive

If you have not properly inserted the USB drive to Mac, then you might encounter this issue. To fix this, just remove the pen drive and clean the USB slot on your Mac. After a while, insert it once again, and check if it has been detected or not.

• Reinsert the USB drive

If you have not properly inserted the USB drive to Mac, then you might encounter this issue. To fix this, just remove the pen drive and clean the USB slot on your Mac. After a while, insert it once again, and check if it has been detected or not.

• Check the format

Some formats of the pen drive, like NTFS are not supported by Mac. You can go to the thumb drive’s properties to view its format. In case if it has an NTFS format, then you need to use a third-party tool to access it or format the flash drive on Windows instead.

• Fix the USB drive

There might be some problem with the USB drive storage as well. In order to fix this, go to Mac’s Applications and launch Disk Utility on it. Select the connected pen drive and click on the “First Aid” option from its toolbar. This will check the USB storage and would try to fix its file system as well.

• Reset PRAM

The Parameter Random Access Memory on Mac can also lead to the pen drive not formatting issue. Luckily, it can easily be fixed by restarting Mac. Power it off or simply restart it from the Finder. While Mac is restarting, press the Command + Option + P + R keys at the same time to reset its PRAM.

• Update macOS

If your Mac is running on an outdated version, then it might encounter compatibility issues with the connected pen drive. The easiest way to update its drivers and firmware is by upgrading it to a stable version. Just click on the Apple menu on Finder and select “Software Update”. This will make your system look for the recent macOS update that is compatible with it.

Part 6. How to Perform Pen Drive Data Recovery on Mac

Sometimes, users end up formatting a pen drive by mistake as well. If you also have accidentally deleted data on Mac or have formatted a pen drive, then take the assistance of Recoverit Data Recovery Mac. Developed by Wondershare, it is one of the most advanced and trusted data recovery tools for Mac. The latest update of Recoverit 8.0 has been released that is equipped with tons of high-end features. You can now recover all kinds of data from Mac or a pen drive with a single click.

  • Using Recoverit 8.0, you can get back your lost photos, videos, documents, compressed files, and numerous kinds of data easily.
  • The application is known to produce exceptional results in less time. It also features a user-friendly and intuitive interface that does not require any prior technical knowledge.
  • It supports data recovery on all types of USB drives. This includes pen drives from brands like Kingston, SanDisk, Sony, HP, Samsung, and more. Also, it supports leading file formats like NTFS, HFS, FAT, exFAT, etc.
  • The interface will let you preview the extracted data first. Later, users can selectively save their files to a location of their choice.
  • Recoverit supports data recovery under every possible scenario like formatted drive, accidental deletion, malware attack, and so on.

If you want to perform pen drive data recovery using Wondershare Recoverit 8.0, then simply follow these basic steps:

Step 1: Connect your USB drive and select it

Firstly, connect your pen drive to your Mac and make sure it is detected by it successfully. Subsequently, launch Wondershare Recoverit 8.0 and pick a location to scan. In this case, it will be the connected USB drive. If you want, you can browse to a specific location as well.

Step 2: Scan for any lost content

During the data recovery process, you are expected to wait for it to be completed. The interface will let you know the progress on the screen. Kindly don’t disconnect the pen drive from Mac as of now to get better results.

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Step 3: Recover your data

In the end, when the data recovery process is completed, you will be notified. Now, you can preview your photos, videos, and documents on the interface and select the files of your choice. Click on the “Recover” button and save them to a trusted location. It is recommended not to save them back to the USB drive.


By following this informative guide, you would certainly be able to format pen drive on Mac. Apart from that, we have also discussed ways to fix issues like pen drive not formatting as well. Though, if you have accidentally formatted your flash drive, then take the assistance of Recoverit Data Recovery. Being one of the best data recovery tools, it will certainly help you in an unforeseen data loss scenario. You can download its freely available version and keep it handy to do pen drive data recovery during any unwanted situation.

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