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Partition drive on mac os x

If you select the one below it, the Partition option will be greyed out and become unclickable. Located on the left is a big blue circle with the name of your external drive together with its volume size. Then allocate the desired volume to each partition. You can do that by clicking the small white circle and dragging it around. To check whether the operation is really successful, go to your Mac desktop. You should see multiple disk icons show up.

I chose to create two partitions on my Seagate Expansion — one for backup, the other for personal use. That wraps up this tutorial article. I hope you find it helpful. As always, let me know if you have any issues during the formatting or partitioning process. I can follow this to the letter until the partition section.

I have a Seagate 1 TB external hard drive, but have already backed up my Mac once, so the Partition button is always grayed out. Same problem with partition greyed out on I can only select either one but partition icon is grey. Your email address will not be published. When I connected the Seagate to my Mac, the drive icon showed up like this.

Step 1: Open Disk Utility. By the way, you can also rename your external drive. Step 4: Wait until the erasing process is complete. For me, it took less than a minute to format my 2TB Seagate Expansion.

Step 2: Add partitions and allocate volume for each one. After that, you can rename each partition and define a file system for it. Step 3: Confirm your operation. JP on December 19, at am. Mona on March 14, at pm.

Paragon Hard Disk Manager for Mac | Paragon Software

Tim Walsh on January 18, at am. Once I have backed up my Mac, is it possible to partition the external hard drive? 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.

How to share an external hard drive between Mac and Windows

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.

How to Partition an External Hard Drive on Mac

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. You can create a new Volume in the leftover space. Step 8. Drag the Pie Chart to adjust the size of each volume.

Accessing Disk Utility

When the Volume is adjusted to the size you desire, click Apply , and that's it. AnyRecover for Mac is unique software developed by iMyFone team to help Mac users recover data from their disk. Powerful Partition Recovery: Recover all your lost files no matter how they were lost, such as format, resize, accidentally delete, etc.

Whether it is documents, photos or videos, AnyRecover is the right tool for the job. Download Now Download Now.


  • How to Add a New Hard Drive Partition in Mac OS X.
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  • Add a partition to a device formatted as Mac OS Extended, MS-DOS (FAT), or ExFAT?
  • Format Your Drive With Disk Utility?

Download and install the software for Mac. Then launch the software and select the mode Lost Partition Recovery according to what you want to recover. Once you've chosen the recovery mode, set the path of data location where you want to get your lost files and select the file types of the data you want to recover.

Click the "Scan" button to begin the process. Before you recover the files, you'll have to preview them to be sure that you've selected the right files.