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FonePaw - Solution - Eraser - Format A Hard Drive for MacOS
Some people are asking for a way to format a hard drive for Mac. Whether you are trying to backup Mac to an external hard drive, wipe out any personal information and sell the computer, or even use a new operating system, you need to format the hard drive on your Mac or PC.
But before you can do anything, you need to make it clear that the hard drive you want to wipe or format would be an external hard drive or an internal hard drive. We can easily format external hard drive for Mac. But when it comes to format internal hard drive for mac, things are getting a little more complicated. Maybe we will go through with the way to format a startup drive for Mac later. But now in this guide, we will cover the situation of formatting an external hard drive in steps.
Sep 06, 2019 Choose to boot up from your external USB installer from the selection screen. Use a Mac OS X installation Disc. If you’re unable to use Internet Recovery Mode or create a bootable USB installer, you can still use a Mac OS X installation disc. These discs are available for OS X Snow Leopard, OS X Lion, and OS X Mountain Lion. Jan 10, 2020 6. Finally, press 'Return' key on the selected option to boot Mac. This way you can boot your Mac with an external USB drive, but the most critical part is to prepare the USB drive. If you have multiple USB drives connected, then the Startup Manager shall list the drives with the bootable OS. So, this is how to boot Mac from USB drive. Boot device selection options in Mac OS X. If you have multiple operating systems installed on your computer, or if you are trying to boot off various utility or other boot disks, you may run into.
Notice that you need to backup your importanct files on the hard drive you are going to format as the procedure would delete all of the data and bring it back to the factory settings.
Format an external hard drive for Mac
How to Format External Hard Drive for Mac
If you are trying to format Mac external hard drive, you can go over the process step by step:
Step 1. Connect your hard drive to your Mac.
Step 2. Open Finder and choose 'Applications > Utilities > Disk Utility' to launch the app on your Mac.
Step 3. Once you open the Disk Utility app, you can see all the drives on your Mac are listed on the left-hand sidebar. Just select the one you want to format and click on the 'Erase' tab.
![Mac Os Choose Boot Drive Mac Os Choose Boot Drive](/uploads/1/2/6/1/126133408/600459043.png)
Format an external hard drive for Mac
Step 4. Now in this interface, you will see a 'Format' option. In this drop-down box, you are allowed to choose different format.
OS X Extended (Journaled) should be selected if you are going to use the drive as a system or 'boot' drive on macOS.
Mac OS Extended should be selected if you will be using the drive as a media or 'scratch' drive on Mac.
Mac OS (FAT) is compatible with both PC and Mac platforms. However, there's a limit to transfer files within 4GB.
ExFAT is similar with Mac OS (FAT) but it can work with files as large as 16EB (exabytes)
So if you are going to use an external drive for both your Windows PC and your Mac, you should choose the ExFAT or FAT format.
Choose format for hard drive
Step 5. Name your drive you like but it would be better to choose something specific, so that you can make things clear every time when you look at its name.
Step 6. Click on the 'Security Options' button and you are able to choose the way (fastest or more secure) to format your external disk. The fastest way will save your time but it erases the drive only by removing the header information. That is to say, you can easily restore the hard drive using a data recovery software if the files haven't been overwritten. It is not good and the format process is meaningless in some way. So maybe you can try the more secure one. It may take quite a long time, but it will erase the drive in a deeper way.
Step 7. Click on the 'Erase' button to start erasing the external hard drive or USB. Formatting a hard drive will take a while and wait for it patiently. Once the progress bar is at 100%, the job is done!
How to Recover Formatted Hard Drive on Mac
As it is mentioned above, after formatting a hard drive, all data on the hard drive will be erased. But what if you have second thought and need to recover files from the formatted drive? Is it possible to recover files from formatted drive on Mac? Yes, it is possible. But you'll need FonePaw Data Recovery, a Mac data recovery program that can recover deleted files from hard drive, SD card, USB drive even the drive has been formatted.
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![Mac Mac](/uploads/1/2/6/1/126133408/630905259.png)
Step 1. Run FonePaw Data Recovery on your Mac. Remember that you should not install the application on the formatted drive. Otherwise, some of the files could be overwritten by the application.
Step 2. When the application is open, select the files you want to retrieve from the formatted drive. Tick the formatted hard drive. And click Scan.
Step 3. The application will first quickly scan some easy-to-get files on the formatted hard drive. If you need more files. Click Deep Scan to find files that are buried deeper.
Step 4. View the results by file types or path. Tick the files you need and click Recover. If you have deleted files that haven't been found, do not save the recovered files on the formatted drive. Instead, save them on other drive, such as your USB drive.
If you have any problem when following the steps to format hard drive for Mac, please leave us a message on the comment box below!
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Jun 08, 2020 • Filed to: Solve Mac Problems • Proven solutions
A Universal Serial Bus or USB drive, also known as a flash drive is a portable data storage device that includes a memory which includes a USB interface. It is typically removable and much smaller than an optical disc. Any sort of data can be stored in this device. The drives are available in various sizes and as of till date, the 2TB(Tera-Byte) flash drives in terms of storage capacity are the largest ones available in the market.
Today, these drives are one of the most consumed used devices in the world. Thanks to their portable nature, affordability, and compatibility, USB drives are being used to send and receive endless information across a surplus of networks and platforms all around the globe. This small tool has opened the world to a stream of limitless options with respect to storing, transferring, copying data, and much more. One of them includes Booting the Mac from such device.
Part 1. Reasons for Mac Boot from USB:
Booting the Mac from USB in a way gives the power back to the user. The likeliest of the reason for choosing the boot from USB method is that your Mac won’t start which denies the user access to the computer. Using from an external source like the USB drive helps the user get around the problem. It provides the user access to contents of the internal drive, assuming the data is safe and not corrupted. It also helps to repair the Mac disk with Disk Utility and other tools. Here are the top reasons why the user should choose to Boot Mac from USB:
- Allows the user to install a different version of MacOS.
- It allows the user to test a new version before you make the decision to upgrade.
- Allows risk-free testing of the Beta version.
- Faster and efficient.
- By installing older versions through USB, it permits certain Apps to run which are not compatible with the latest MacOS.
Part 2. Preparations for Booting Mac from USB:
To ensure a risk-free procedure certain measure should be taken:
- The user should buy a name-brand flash drive.
- The USB should contain 16-32GB of free space.
- The user should scan the flash drive with some reputable Anti-Virus software.
- The user should check to see what size of ports they have on the Mac. A 12’ Mac only contains a single C-Type port.
- Make sure to purchase the C port flash drive to avoid any inconvenience.
- It is adviced that the user should go with a USB 3.0 supported drive, with a size of 16GB to ensure a swift transfer of data.
- The USB drive should be formatted with a supported GUID partition.
- It should contain an OS X installer or a usable operating system to work with.
Part 3. How to Create Bootable USB on Mac:
There are a few general guidelines that can help get your machine started which are mentioned above, regardless of the OS the user prefers.
Here are the methods to create a bootable USB drive on Mac.
- Creating a Bootable USB Using Terminal.
- Create a Bootable drive with the help a third party compression software, which is available for free.
Creating a Bootable USB Using Terminal:
Terminal is the default gateway to the command line on a Mac. It is just like the Command Prompt feature works for MS Windows. The Terminal feature ensures a hassle-free experience for the Mac user without the conventional pointing and clicking, the user just has to type the commands and the computer does the rest. The user can find Terminal in the Applications>Utilities folder or it can be checked in the finder utility.
Mac Os Select Boot Drive
Using the Terminal feature is the most simple way to create the bootable USB drive. The user just needs to follow one easy step which is renaming the MyVolume portion of the command with the name of the drive. The name of the drive can be changed using the Disk Utility of Mac.
Here are the steps required after opening the Terminal feature to create a bootable USB drive.
- Copy and paste the command which is suited for the version of the operating system into the Terminal window.
- The command for MacOS Mojave is as follows:
- Press the Return key.
- Enter the password.
- Confirm to erase the USB drive by typing Y followed by the Return key.
- Terminal will erase all the data inside the drive and create the bootable USB drive.
sudo /Applications/InstallmacOSMojave.app/Contents/Resources/createinstallmedia --volume/Volumes/MyVolume
If there is a need to install a different version of the operating system then the user just has to replace the above-underlined command with their desired version of OS. For example, if the user wants to install Mac OS Sierra instead of Mojave then they would have to replace “Mojave.app” with “Sierra.app” inside the command line.
Part 4. How to Boot Mac from USB Media:
After creating a bootable USB drive, the user simply needs to plug the created drive into the open port on the Mac. Here are the steps to boot Mac from the USB flash drive:
- Power on the system.
- Press and hold the Option (Alt) key on the keyboard when the computer starts.
- Select the USB drive as a startup disk when the option appears.
- The system will start the boot process off the USB drive.
- Install the operating system from the MacOS utilities.
- Data can be restored by using the Time-Machine backup option.
Part 5. How to Recover Data from Unbootable Mac:
The Mac becomes unbootable when the BIOS which is a firmware that is used to perform hardware initialization during the booting process fails to recognize the startup process. It usually happens when there is a failed system update, system crash, damaged MBR, or when the drive becomes corrupt.
Recoverit Mac Data Recovery tool is the most efficient option to recover all the lost data when Mac becomes unbootable. Developed by Wondershare, Recoverit is one of the most preferred recovery tools in the world. The tool provides an instant preview of what is recovered after a detailed scan. It allows to connect almost every type of portable device and recover data from them. Data can be restored by performing the recovery and repair process. The process involves the installation of the Recoverit software that offers users the chance to get back the important data that they had lost.
Mac Os Choose Boot Drive On Startup
First of all, the user is required to download the Recoverit software on Mac system from the official website. Here are the following step required to recover data from an unbootable computer:
- Installation: Please Install Recoverit by clicking on the icon.
- Select the folder: Select the “Recover from Crash Computer” option.
- Initiate Recovery Process: Click on “Start” for the recovery process to launch.
- Create Bootable Drive: Select the “Create USB bootable drive” option and click on “Create”.
- A pop up will appear that will prompt the user to format the USB drive.
- Format the Drive: Click on “Format” Now.
- The process will start that will create a bootable flash drive.
- Recover Data: After the boot is completed, click on the ”View Guide” option to recover data.
- Start Recoverit: Launch the Recoverit software again.
- Recover Data: Scan the drives for lost data.
All hope gets lost when the computer becomes unbootable and the data gets deleted. Recoverit recovery software is the most convenient program when it comes to retrieving lost data from the computer.
Conclusion:
Installing the MacOS from a USB flash drive gives the user an instant solution when the Mac installer due to some reason refused to work. The method to create a bootable drive is easier than it sounds. Now, you know what to do whenever you want to upgrade your MacOS from a bootable external source by following different methods to ensure a safe and hassle-free process. If you lose valuable data when the Mac becomes unbootable then you can easily recover the lost files by using the Recoverit recovery software. Recoverit guarantees data recovery in no time.
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