Mac OS X has a pretty solid disk utility for scenarios where you might want to create, resize or delete or modify new or existing partitions. However, in rare cases, the utility might not be as helpful as it should be and can leave your Mac's SSD or hard drive in a mess.
Tool for repairing the Recovery volume (APFS) or partition (HFS+) on Macs running macOS 10.13.x or later. This script uses a macOS 10.13 and later installer application to repair the Recovery volume (APFS) or partition (HFS+). It is the reliable disk formatting tool for Windows/Mac. After formatting, the data will be permanently lost. The top 5 disk formatting tools for Windows and Mac can help you securely format hard drive or external device under Windows/Mac OS. AweEraser is the outstanding one among the 5 disk formatting tools. It will securely format the hard. MiniTool Partition Wizard by MiniTool Solution Ltd. Is a free (for personal use) and very popular application that will help you create, edit, delete and manage disk partitions. However, MiniTool Partition Wizard for Mac has not been released yet, so if you need a partition.
Such an experience happened recently with yours turly. I had installed Windows 10 Insider Preview via Boot Camp on my MacBook Air but it stopped working due to an incomplete Windows Update. I decided to remove the installation from my Mac but the Boot Camp utility in OS X used to get stuck after a while when recovering the partition to the original size. Meanwhile, Disk Utility showed the space as reserved for Boot Camp but did not show or allow me to mount the drive so I could delete it and merge it with my OS X partition.
Mac Os Partition Tool
So, here I was, left with half of my disk space on my MacBook Air (I have the 128GB variant). From prior Windows experience, this reminded me to take the command line route, or Terminal, in case of Mac. A little research through Apple's support documentation for the right OS X Terminal commands led me to the below solution.
How to delete a partition through macOS Terminal
In case you ever get stuck in a situation where you are unable to recover a partition on your Mac, follow the below steps:
- Open up Terminal on your Mac
- Type in the below command and press enter
- It should show you a list similar to the above screenshot. From here, you would have to select the partition you want to recover and erase it. Use the following command:
Here, instead of disk0s4, use the correct volume identifier as per the table you saw when you entered the list command. JHFS+ is short for Journaled Heirarchical File System Extended, or in a nutshell, the file system used by OS X. The volume being erased has to match the first volume's file format else there would be unexpected data loss.
- Once the volume is erased, you now have to merge the partitions. For this step, note that the first volume that you list in the command will gain the space from the second volume, effectively destroying any data in it. The first volume, in this case likely to be the OS X installation volume, will remain safe.
Here, the command is to merge partitions, in the JHFS+ format, with a name (NewName as an example) and the volume identifiers, first and second volumes, respectively.
- Let this command work and do its thing. After it's done, you can re-run the diskutil list command again to verify that the volumes have merged and you have regained your space. You can also go to About This Mac > Storage or Disk Utility to double check.
Similarly, these commands can also be used to create, mount, unmount, rename partitions and do much more on your Mac. Type in diskutil in the Terminal and hit enter to see the complete list of supported commands.
If you require any help in the above steps, feel free to reach out to me via comments below or on Twitter.
When there are several partitions on your hard drive, and you need one bigger than the other on a particular drive to handle more data in it, you need to know methods to use to resize partitions on Mac. In this article, we'll talk about rules of resizing partition for Mac and how to backup data before resizing partition. Most importantly, you'll learn how to resize partition on Mac with Disk Utility.
1. Backup Important Data Before Resizing Partition on Mac
2. Resize Partition on Mac with Disk Utility
1Rules of Resizing Partition for Mac
If you want to resize a partition for your Mac without erasing data, there are some rules you need to follow. Ensure you pay attention to these rules for maximum results.
The last partition on a drive cannot be increased. However, it can be deleted.
When a particular partition is deleted, the space from it is added to the previous partition.
Fusion drives can be quickly resized with the version of Mac Utility Disk used for its creation but not with an older one.
Before you resize a Mac volume, remember to back up the drive because resizing may need you to delete partitions
Trying to use pie charts to resize a volume is quite difficult to achieve. It is better to use optional sizes rather than using pie chart dividers.
If you want to increase a particular volume, then the volume next to the affected volume must be deleted to free up more space.
2How to Resize Mac Partition without Losing Data?
To keep your data safe and intact, make sure that you've backed up your data before resizing partition. Here we recommend a backup and recovery service - AnyRecover Data Recovery for Mac, which is a unique software developed by iMyFone team to help Mac users recover data from their disk. With AnyRecover unique algorithm, you can backup your data from a partition on Mac easily.
Key FeaturesPowerful Partition Recovery: Back up files from partition on Mac and recover all your lost files no matter how they were lost, such as format, resize, accidentally delete, etc.
Recover All Kind of Files: AnyRecover is a great software you can use to recover any file type. Whether it is documents, photos or videos, AnyRecover is the right tool for the job
Safe and Reliable: AnyRecover can recover your files safely without overwriting your existing files.
Supports All Mac OS: AnyRecover supports all Mac OS including macOS Mojave, macOS Catalina, macOS high sierra, and more.
Backup Important Data Before Resizing Partition on Mac
Maco Tool And Engineering
Firstly, download and install the software for Mac, then launch the software on your Mac.
Step One - Select the Path of the File Location
Set the path of data location where you want to get your lost files. Click the 'Start' button to begin the process.
Step Two - Scan the Selected Path
The program will start an All-Round scan on your selected location, once the process is done, all your lost files will be listed out in respective file types.
Step Three - Preview and Recover Lost Files
Before you recover the files, you'll have to preview them to be sure that you've selected the right files. Then click the 'Recover' button.
Now you're ready, without need for worrying about data loss, continue reading to know how to resize partition on Mac by using the Disk Utility.
Resize Partition on Mac with Disk Utility
Mac Disk Utility is a powerful built-in application in Mac OS that has undergone a series of changes with every major OS update.
Many Mac users have complained that using Mac Disk Utility to resize a Mac Volume is no longer easy. However, being an experienced Mac expert, we feel its interface is user-friendly and easy to use. Apple has come up with a well-arranged Mac Disk Utility interface that will make enlarging/resizing of a Mac Volume to be easy.
Steps to Resize Mac Partition
Step 1. Navigate through your menu and open Mac Disk Utility.
Step 2. When Mac Disk Utility opens, select the drive you want to resize.
Step 3. Then select Partition on the toolbar to resize the Volume of your choice using the Utility tool. A pie chart will open showing free space and space occupied by each Volume.
Step 4. For a volume to be enlarged, another one has to be deleted. So, choose the Volume you want to delete on the pie chart.
Step 5. Delete the Volume of your choice and tap the minus icon below the pie chart. The pie chart will give you a warning message about what you've done.
Step 6. If you're satisfied, tap Apply or tap Cancel to delete another Volume.
Step 7. Automatically, Mac Disk Utility will add up the freed space to the Volume instead of the deleted one. However, if you want to customize the Volume sizes, you can select the Volume, specify its size then hit Revert/Return. You can create a new Volume in the leftover space.
Macos Partition Tools
Step 8. Drag the Pie Chart to adjust the size of each volume. When the Volume is adjusted to the size you desire, click Apply, and that's it.
Maco Tool Kit
However, there are times when disk utility can't resize partition. Don't worry, there are also solutions available. Refer to this page and you'll get it fixed.
Macos Partition Disk
Conclusion: Who would have thought that backing up important files from partition or enlarging Mac partition can be done effortlessly? Well, with AnyRecover for Mac, you can also recover all your lost files which are formatted with a 98% recovery success rate. So, when next you're having problems recovering a deleted file, simply go for AnyRecover.
