How to resize disk partition in macOS

Apple created it a lot easier to resize partitions–logical divisions of a disk drive into independent mountable volumes with diverse properties–several releases of macOS ago. A VFAB reader resized their most important quantity to 369GB to set up a Boot Camp partition, but then recognized it was way too little. They wondered how to resolve this.

In the suitable circumstance, you can merely follow these measures without having to back again up the complete generate, erase and reformat it, and insert new partitions.

Constantly back again up your generate ahead of trying to resize partitions in scenario a thing goes improper, or you unintentionally simply click to carry on on a harmful operation.

1. Launch Disk Utility.
2. Select the disk, not the volume, in the left-hand lists of disks.
3. Click the Partitions button.
4. You can now delete other partitions (select and click the – button), and form in the new sizing of your most important partition in its Size area.
5. Warning! Click on Utilize to continue, and Disk Utility will alert you regardless of whether it will be a damaging operation, deleting the partition’s data and re-producing, or not. If it is non-harmful, commence.

I haven’t observed a full consistency in which drives have non-damaging resizable partitions or not. You can examine a lot of detail about macOS push partitioning, and nevertheless come across that a quantity that satisfies all the parameters for resizing with out erasing, and even now be advised by Disk Utility that the partition will be erased.

Foundry

If you have to have to erase to repartition, you need to make a full clone of the generate, then boot from macOS Recovery and use Disk Utility in that method to repartition, which will preserve macOS Recovery intact if it is a startup quantity. You can then also restore your partition from a clone employing Disk Utility as properly.

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