Oct 26, 2020 Time Machine needs a partition formatted to Mac OS Extended (Journaled) File System). Select that using the up and down arrows to the right hand side of the format option. Enter in the size of the partition on the next line. Type in the number and use the up and down arrows so say whether it is in TB, GB, etc. How to partition external hard disk on Mac? Connect the external hard disk to the Mac. Click on Disk utility. Select the drive from the left sidebar, then click the Partition tab. Under Partition layout, select '2 Partitions.' The user can adjust the size of the partition based on the desired requirement. The best way to recover files from an external hard drive on a Mac for free is through a backup copy you have previously created. Time Machine is the backup tool that comes installed with your Mac’s operating system, and many users choose to employ it to protect their data. Whether you need to partition external hard drive mac or create recovery partition Mac, our list of best Mac partition manager applications is here to help. With these applications, you won’t have to spend time typing obscure commands into Terminal or read lengthy forum threads just to learn how to resize a partition or erase a hard drive.
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.
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.
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 Features
Backup Important Data Before Resizing Partition on Mac
Firstly, download and install the software for Mac, then launch the software on your Mac.
Step One - Select the Path of the File Location
Kmsauto lite 1.3.1. 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
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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.
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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.
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.
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.
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.
'Format', a word which is connected with 'all data clear' and which is different from what it is called so on Windows, has another name on Mac, 'erase'. Of course, there are different occasions where people want to get their external hard drives erased.
When there are bad sectors which don't store the data of bootstrap procedure, but of some important private files, people expect for formatting and backing up to make these files accessible again; when people's hard disks can no longer write in further, they expect for erasing disk to pave way for new items to write; when there are file system errors in people's hard disks resulting from frequent hot swapping, they expect for formatting to give rebirth to these dying disks and make them in use again.
Then how to format a external hard drive on Mac? Here are two methods for those people who urgently need to erase a external hard drive.
Part 1: Two methods to format external hard drive on MacMethod I: Format an external hard drive through 'Disk Utility' (newbie friendly)
Step 1: Connect the external hard drive with your Mac, and the computer will mount your external hard drive. Click here when external hard drive does't mount on Mac.
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Step 2: Launchpad → Other → Disk Utility, and click the Disk Utility.
Step 3: Choose your target external hard drive or volume, click Erase on the top. If you find there's something wrong to read your external hard drive, then you can turn to external hard drive does't show up in Disk Utility for help.
Step 4: Edit the disk name, select a format and a scheme.
There are 10 formats (file systems) you can select in macOS 10.13 or above:
And 3 kinds of Scheme you can choose:
• GUID Partition Map: for all Intel-based Mac computers.
• Master Boot Record: for Windows partitions that will be formatted as MS-DOS (FAT) or ExFAT.
• Apple Partition Map: for compatibility with old PowerPC-based Mac computers.
Step 4: Click Erase to format your target disk.
Can't Partition External Hard Drive Mac
Note: As for our example to erase a whole external hard drive, the original physical volume 'X' and 'Y' will have been deleted and a new volume 'Untitled' will have been established. At that time, there will be an icon of your new-established volume on the desktop.
Step 5: Click Done, and congratulations that you have finished all the steps.
Steps to format a volume are 99% the same as that of a external hard drive.
The most distinguishing difference of formatting between a volume and a external hard drive is that: if a external hard drive gets formatted, then all the volumes inside the external hard drive, which means all the data, will be deleted. Compared with that, if a volume gets formatted, only the one that gets formatted will be deleted, and that's to say, only the data of the formatted volume will be deleted.
Method II: Format an external hard drive through 'Terminal'
Step 1: Launchpad → Other → Terminal, and click Terminal.
Step 2: Input 'diskutil list', press Enter to list out all your disks.
Step 3: Input the 'erase' command: diskutil erasedisk + new file system + new disk name + identifier.
For example: to format the whole disk 2 to hfs+, then the operating command is:
To format a single volume to hfs+, like disk2s1, then the operating command is:
Note:
1. There's no limitation of uppercase or lower case.
2. HFS+ can be replaced by other file system formats, and here provide some references like APFS, JHFS+, FAT32 and ExFAT.
3. 'TD' is the name that I give to the new disk and it can be replaced by any word you like.
Partition External Hard Drive Mac
4. 'disk 2' is the IDENTIFIER, or rather, the target disk that I want to format.
Well done! Finished erasing on disk2! Now I believe you have master another method to format your external hard drive. Take a try!
Well, if you find that you can't format your disk due to the loss of some fatal meta files, you are bound to stop to recover your data and the iBoysoft Data Recovery can help you find the lost meta files.
Part 2: Understand external hard drive, container, volume and partition on Mac
If you newly switch from Windows PC to Mac, you may get confused with external hard drive, partition, container, and volume in Disk Utility. Here are the differences.
External hard drive: external hard drive is the hardware component like HDD and SSD that you used to store the data. In Mac Disk Utility, it shows in the first line of the whole disk directory (e.g. disk2).
Partition: different from Windows, the partition is more like an operation to divide the entire, large, uncultivated, lonely, and original disk space. When you partition your external hard drive, the partition map is created when the external hard drive is erased and the partition map defines how and what the partitions should be. But on Mac, a partition can't be in effect unless it has been activated, i.e. being formatted with a file system. A partition with a file system will be called a volume on Mac.
Container: Only the APFS has the Container where volumes share space with each other, which meanwhile implies that if one of the volumes is up to the entire partition capacity, there will be no space left for the other volumes to use in this partition. The Container is a special kind of partition on mac.
Partition External Hard Drive Mac Without Erasing
Volume: on Mac, any partition that is formatted with a file system before storing data is called a volume (e.g. disk2s1). Any available partition can divide its capacity into numerous volumes in a very easy-going way on mac while their names are editable. For an APFS external hard drive, APFS volume is a third-level unit of the storage device.
Ending
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