How to Use the Disk Utility App in Mac OS Mojave

Posted on 17th June 2023

If you’re running Mac OS Mojave, you can use the Disk Utility app to manage your disk drives and partitions. This guide will show you how to use the Disk Utility app to perform various disk-related tasks.

Opening Disk Utility

To open Disk Utility, follow these steps:

1. Click on the Finder icon in the Dock.
2. In the Finder window that opens, click on the Applications folder.
3. In the Applications folder, scroll down and double-click on the Utilities folder.
4. In the Utilities folder, double-click on the Disk Utility app.

The Disk Utility app will now open.

Viewing Your Disks and Partitions

When you open Disk Utility, you’ll see a list of all the disks and partitions that are currently connected to your Mac. This includes your internal hard drive, any external hard drives, and any optical drives (like CD or DVD drives).

To view the details of a particular disk or partition, click on it in the list. You’ll see information such as the disk or partition’s name, capacity, format, and so on.

Formatting Disks and Partitions

If you want to format a disk or partition, follow these steps:

1. Click on the disk or partition that you want to format in the list.
2. Click on the Erase button.
3. In the Format drop-down menu, choose the format that you want to use for the disk or partition.
4. In the Name field, enter a name for the disk or partition.
5. Click on the Erase button.

The disk or partition will now be formatted.

Creating Disk Images

If you want to create a disk image, follow these steps:

1. Click on the File menu and choose New Disk Image from the menu.
2. In the New Disk Image dialog box, choose the disk or partition that you want to create an image of.
3. In the Image Format drop-down menu, choose the format that you want to use for the image.
4. In the Encryption drop-down menu, choose the encryption method that you want to use for the image.
5. In the Save As field, enter a name for the image.
6. Click on the Save button.

The disk image will now be created.

Mounting and Unmounting Disks and Partitions

If you want to mount or unmount a disk or partition, follow these steps:

1. Click on the disk or partition that you want to mount or unmount in the list.
2. Click on the Mount or Unmount button.

The disk or partition will now be mounted or unmounted.

Repairing Disk Errors

If you think a disk or partition has errors, you can use the Disk Utility app to repair them. Follow these steps:

1. Click on the disk or partition that you want to repair in the list.
2. Click on the First Aid button.
3. Click on the Run button.

The Disk Utility app will now scan the disk or partition for errors and attempt to repair them.

Conclusion

That’s all there is to know about using the Disk Utility app in Mac OS Mojave. If you have any questions, feel free to post them in the comments section below.

How to Use the Disk Utility App in Mac OS Mojave

Part 1: Introduction to Disk Utility

Mac’s Disk Utility is a powerful application that can be used to manage both your internal and external storage devices. In this article, we will show you how to use some of the most common features of Disk Utility.

Part 2: How to Use Disk Utility to Format a Drive

One of the most common uses for Disk Utility is formatting drives. This can be useful when you want to erase all the data on a drive, or if you want to change the file system format. For example, you may want to format a drive that is currently using the FAT32 file system so that it can be used with a Mac. To format a drive using Disk Utility, follow these steps:

1. Open Disk Utility, which is located in the Utilities folder of your Applications folder. If you don’t see the Utilities folder, you can open it from the Go menu in the Finder.
2. Select the drive that you want to format in the sidebar. If you don’t see the drive that you want to format, click the View menu and select Show All Devices.
3. Click the Erase button in the toolbar.
4. Enter a name for the drive in the Name field.
5. Select the file system format that you want to use in the Format drop-down menu. If you’re not sure which file system to use, choose Mac OS Extended (Journaled).
6. Click the Erase button.

Note that formatting a drive will erase all the data on the drive. Make sure that you have backed up any important data before proceeding.

Part 3: How to Use Disk Utility to Verify and Repair Disks

Disk Utility can also be used to verify and repair disks. This can be useful if you’re having problems with your computer, or if you think there may be some errors on your hard drive. To verify or repair a disk using Disk Utility, follow these steps:

1. Open Disk Utility, which is located in the Utilities folder of your Applications folder. If you don’t see the Utilities folder, you can open it from the Go menu in the Finder.
2. Select the disk that you want to verify or repair in the sidebar. If you don’t see the disk that you want to verify or repair, click the View menu and select Show All Devices.
3. Click the First Aid button in the toolbar.
4. Click the Verify Disk or Repair Disk button, depending on what you want to do.

Disk Utility will now verify or repair the selected disk. This process may take a few minutes to complete.

Part 4: How to Use Disk Utility to Create Disk Images

Another useful feature of Disk Utility is the ability to create disk images. Disk images are essentially “virtual copies” of disks that can be used for backup or archival purposes. To create a disk image using Disk Utility, follow these steps:

1. Open Disk Utility, which is located in the Utilities folder of your Applications folder. If you don’t see the Utilities folder, you can open it from the Go menu in the Finder.
2. Select the disk or volume that you want to create a disk image of in the sidebar. If you don’t see the disk or volume that you want to create a disk image of, click the View menu and select Show All Devices.
3. Click the File menu and select New Disk Image.
4. Select the format that you want to use for the disk image in the Format drop-down menu. If you’re not sure which format to use, choose read/write disk image.
5. Click the Save button.
6. Enter a name for the disk image in the Save As field.
7. Select the location where you want to save the disk image in the Where drop-down menu.
8. Click the Save button.
9. Click the Create button.

Disk Utility will now create the disk image. This process may take a few minutes to complete.

Part 5: How to Use Disk Utility to Restore a Disk Image

If you have a disk image that you want to restore to a physical disk or volume, Disk Utility can be used to do this. To restore a disk image using Disk Utility, follow these steps:

1. Open Disk Utility, which is located in the Utilities folder of your Applications folder. If you don’t see the Utilities folder, you can open it from the Go menu in the Finder.
2. Select the disk or volume that you want to restore the disk image to in the sidebar. If you don’t see the disk or volume that you want to restore the disk image to, click the View menu and select Show All Devices.
3. Click the File menu and select Open Disk Image.
4. Select the disk image that you want to restore in the Open dialog box and click the Open button.
5. Click the Restore button in the toolbar.
6. Click the Restore button in the confirmation dialog box.

Disk Utility will now restore the disk image. This process may take a few minutes to complete.

Part 6: How to Use Disk Utility to Mount and Unmount Disk Images

Disk Utility can also be used to mount and unmount disk images. This can be useful if you want to access the data on a disk image without having to restore it to a physical disk or volume. To mount or unmount a disk image using Disk Utility, follow these steps:

1. Open Disk Utility, which is located in the Utilities folder of your Applications folder. If you don’t see the Utilities folder, you can open it from the Go menu in the Finder.
2. Select the disk image that you want to mount or unmount in the sidebar. If you don’t see the disk image that you want to mount or unmount, click the View menu and select Show All Devices.
3. Click the Mount or Unmount button in the toolbar, depending on what you want to do.

The selected disk image will now be mounted or unmounted.

Part 7: How to Use Disk Utility to Eject Volumes

Disk Utility can also be used to eject volumes. This can be useful when you want to safely remove a storage device, such as an external hard drive or a USB flash drive. To eject a volume using Disk Utility, follow these steps:

1. Open Disk Utility, which is located in the Utilities folder of your Applications folder. If you don’t see the Utilities folder, you can open it from the Go menu in the Finder.
2. Select the volume that you want to eject in the sidebar. If you don’t see the volume that you want to eject, click the View menu and select Show All Devices.
3. Click the Eject button in the toolbar.

The selected volume will now be ejected.

Part 8: Conclusion

As you can see, Disk Utility is a powerful application that can be used to manage your storage devices. In this article, we have shown you how to use some of the most common features of Disk Utility. If you have any questions, feel free to post them in the comments section below.