In the Disk Utility app on your Mac, select a volume in the sidebar, then click the Partition button. In the pie chart, select the partition you want to delete, then click the Delete button. The partition is removed, reformatted, and all free space is assigned to the previous partition. Launch the Disk Utility app on your Mac and highlight the hard drive icon under ‘External’ (for external hard drives). If you choose any other drive, the partition option will become unclickable. Now click Partition on the top toolbar. A window that has partition information will pop up. This is what happened to a Mac user who attempted to resize his Mojave partition, only for the process to fail. He tried to use Disk Utility to create free space on his drive, which already has Mac and Windows partitions. I have a 1000G external hard disk formatted with Mac OS plus. It is a Omega drive, which came by default with that format. Now I have 200G free space and would like to reformat this free space to NTFS. Is it possible to resize the partition without losing the 800G data?
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Sep 28, 2020 • Filed to: Solve Mac Problems • Proven solutions
To resize a Mac Volume in its Drive is very important for users as it creates more space in a specific Volume and decreases it in another in which there is lesser data. Managing Mac Drives and their Volumes is necessary to keep the data, files, and contents secure and properly arranged.
In this article, we shall learn how to resize a Mac Volume with Mac Disk Utility without disturbing the data in the other partitions. When there are multiple partitions, and you need one slightly bigger than the other on a particular Mac Drive to store more data in it, you can use Mac Disk Utility to increase Volumes, delete partitions, expand or resize Volumes as you like.
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Let's move ahead to explore how to resize a Mac Volume with Mac Disk Utility, rules of resizing, and much more.
Part 1: Rule of resizing a Mac volume
Want to resize a Mac Volume with Mac Disk Utility? There are some rules you'll have to follow. Pay attention to these rules for the most accurate results.
- Fusion Drives can be resized with a version of Mac Disk Utility used to create it or its update, but not with an older version.
- If you want to enlarge a Volume, then the partition or Volume immediately next to the affected Volume must be destroyed to make more space.
- The Volume which is the last of a particular Drive cannot be expanded but can be deleted altogether.
- Using pie charts to adjust Volume size is tedious. We recommend you to use optional sizes rather than pie Chart dividers.
- Please note that only the Mac Drives which were formatted with GUID Partition Map can be resized if you do not want data loss.
- Always remember to take a backup of the Drive and its data before you resize a Mac Volume with Mac Disk Utility as resizing may need you to delete partitions.
Go torecover deleted or lost partitionsif you delete it by mistake.
- When you resize a Mac Volume with Mac Disk Utility by decreasing its size, a new Volume will be created next to it or right behind it to fill up the leftover space.
- When a partition is deleted, the space from it is added to the preceding partition.
Part 2: How to enlarge a Mac volume with Disk Utility?
Mac Disk Utility is a built-in application in Mac OS but has undergone a series of changes with every OS update. Since the newest and latest version of it is extremely feature-laden, it can be used to enlarge/resize a Mac Volume easily without causing a loss in data.
Just a reminder, the last Volume on the Drive cannot be enlarged. Also, you must be willing to destroy the Volume behind the said Volume.
Many users express their opinions stating that using Mac Disk Utility to Resize a Mac Volume is no longer a cakewalk. However, we feel that its interface is very intuitive and easy to use. Apple has come up with the most organized Mac Disk Utility interface ever which will guide you all along as you proceed to enlarge/resize a Mac Volume.
Imagine a situation where a Drive is partitioned into equal Volumes, but one of those is running out of space since its contents are more than that in the other partitions. What will you do? Simply use Mac Disk Utility and make room in one Volume by decreasing some in the other.
That people prefer using Mac Disk Utility is because it is a one-stop solution for managing storage devices working with Mac. Also, Mac Disk Utility is fully equipped to resize, enlarge, decrease, create and delete Volumes/Partitions, without disturbing the data in the Drive and destructively affecting other Volumes and partitions.
Curious to resize a Mac Volume with Mac Disk Utility? Move on to the next segment and you'll be able to do just that without any data loss.
Given below are detailed steps to resize a Mac Volume with Mac Disk Utility. Follow the instructions carefully to enlarge a Mac Volume without losing any data:
- Open Mac Disk Utility toolkit from applications or utilities.
- Now when the Mac Disk Utility interface is open before you, select the Drive whose Volume has to be enlarged.
- Hit 'Partition' on the toolbar to resize a Mac Volume with Mac Disk utility.
- Now a pie chart will open up showing you the space occupied by each Volume as shown below.
- To move on, let us delete a Volume to enlarge another. Carefully choose and click on the Volume you want to wipe off on the Pie Chart. The selected Volume turns its cooler to Blue and its details are displayed on the right.
- Now delete this Volume which is Blue and hit the minus icon below the pie chart.
- The pie chart will now be altered and warn you about the consequences.
- If you're satisfied, hit 'Apply' or hit 'Cancel' to choose another Volume to delete it.
- By default, Mac Disk Utility will automatically add up the freed space to the Volume preceding the deleted Volume, but if you want to customize the Volume sizes, select the said Volume, specify its size and hit 'Return/Revert'. The leftover space will be used to create a new Volume.
- The size of each volume can also be adjusted directly from the Pie Chart as shown below.
- Finally, when the desired Volume is enlarged to a size suitable for you, hit 'Apply' and it's done.
Conclusion
Who would have imagined that a Mac Drive Volume could be enlarged so easily? Well, with Mac Disk Utility, resizing a Volume is easy, effective and does not harm the data saved on the drive. The process is very intuitive and steps to use Disk Utility in Mac are extremely simple as stated above.
Do not hesitate to smartly arrange and organize your data in the Mac Drive as it will not disturb the other Drives or the data contained in Volumes of the same Drive.
Go to know the best way ofMac hard drive data recoveryand keep your data well-protected.
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Partitioning a disk on a Mac is an effective way to organize your data into different categories. However, the main concern is that most external hard drives and USB keys come formatted for Windows, which is primarily for PCs. By default, a Mac runs a different file system, so it may bring issues while partitioning your disk on Disk Utility.
![Resize Mac Partition Mojave Resize Mac Partition Mojave](https://i2.wp.com/techsprobe.com/wp-content/uploads/2019/08/2019-08-15_21-14-43.png?resize=1245%2C714&ssl=1)
Hard drive partitioning is a common issue discussed in many tech forums. In a thread on Apple’s support forum, users complain that their Mac Disk Utility partition grayed-out while trying to partition their external hard drives.
Probably, you just bought your external hard drive and are eager to use it on your Mac. But somehow, you cannot access the Mac Disk Utility partition, so you can’t write data to the drive.
Fear not, we have a solution to this problem. In this post, we will guide you through a step-by-step process on how to restore a grayed-out Disk Utility partition. Many Apple users who have faced Partition grayed out in Mac issues eventually partitioned their external hard drives with the help of these fixes.
Why Partition Grayed Out in Mac (Plus Solution)
Problem 1: Sometimes, you cannot access the Mac Disk Utility partition because your hard drive doesn’t have sufficient space.
Solution: If you want to go ahead with the partitioning task, you need to create more space on your hard drive. In other words, you have to erase the data on your drive to create additional space. You can then format your hard drive using GUID Partition Table. After that, go ahead with your partitioning plans.
Important Note: Before formatting your hard drive, back up your most important files. Needless to say, the process will get rid of all the data on the disk, so you risk losing your files for good.
Problem 2: As mentioned earlier, external drives are usually not compatible with macOS, which may bring issues when you want to partition. In most cases, users choose the wrong partitioning option, and as a result, the Partition option in Disk Utility remains grayed out.
Solution: The right way you should follow when selecting a partition option is to choose the drive name within the list provided under Internal or External (depending on the device you want to partition). Your hard drive will be available on the left side of the Disk Utility pane.
How to Restore Grayed Out Disk Utility Partition: Format Your Hard Drive to Work with Mac
To format your external disk to be compatible with macOS, connect your hard drive to the Mac and follow these steps: Mac studio sculpt spf 15 foundation ingredients.
- Open Disk Utility by going to Applications, then select Utilities > Disk Utility.
- Choose the drive name within the list provided under ‘External’. If your hard drive is connected, it will show in the left panel of the Disk Utility. Highlight the disk and click the Erase button in the top toolbar.
- Wait for a window asking you to select the file system you want to use to format your external drive to pop up. For your case, you will select ‘Mac OS Extended (Journaled)’. But if you have plans to use your disk for both PC and Mac, then a better option is ‘ExFAT’. You can also rename your hard disk here to your desired name.
- Wait for the formatting process to complete. The process usually takes less than a minute, but it depends on the size of your hard disk.
- When done, confirm if the formatting was successful by right-clicking the icon for your disk on the desktop and then choosing Get Info. The information is available under Format.
If it reads “Mac OS Extended (Journaled)”, congratulations, you successfully restored the grayed-out Disk Utility and your hard disk is now compatible with macOS.
Partitioning Your Hard Drive on Mac
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Now that you have prepared your hard drive to work with Mac, the next step is to partition it on your Mac by following these steps:
- Launch the Disk Utility app on your Mac and highlight the hard drive icon under ‘External’ (for external hard drives). If you choose any other drive, the partition option will become unclickable.
- Now click Partition on the top toolbar. A window that has partition information will pop up. On the left side of the window, look for the name and the volume size of your hard drive. The next step is to click add(+) button on the bottom of the window to create partitions on your disk. Allocate the desired volume size to each partition.
- Hit the Apply button and wait for a window asking you to verify your choices. Confirm the changes by clicking the Partition button.
- Wait for the process to complete. You can confirm if the process was successful on your desktop. You will see additional disk icons show
Disk Utility Resize Partition
Pro Tip: If the main reason for partitioning your hard drive is to install Windows, Apple recommends that you use Boot Camp Assistant instead of Disk Utility. You should, however, note that you cannot use Disk Utility to erase a partition generated using Boot Camp Assistant.
What Else Can You Do to Resolve Common Mac Issues
If you are like many users, partitioning a hard drive on Mac may not be the only challenge you have had with your computer. Mac users have also reported slow performance, random freezes, and space issues. The best way to guarantee the best performance for your Mac is to scan and clean the computer. Outbyte MacRepair helps you to optimize your Mac for peak performance by checking for and cleaning up junk files, unnecessary apps, and other space hogs that may affect your Mac’s memory.
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We hope the above solutions helped you to restore the grayed-out Disk Utility partition. As always, we would love to hear your success story. Share it in the comment section. Also, let us know if you experienced challenges during the partitioning process.
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If you’re running into errors and your system is suspiciously slow, your computer needs some maintenance work. Download Outbyte PC Repair for Windows, Outbyte Antivirus for Windows, or Outbyte MacRepair for macOS to resolve common computer performance issues. Fix computer troubles by downloading the compatible tool for your device.
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