How to resize a disk partition under macOS：Detailed guide
Operation steps 1. Back up important data：before starting，Be sure to back up your important data。Although partition resizing is generally safe，But the risk of data loss is always there。 2. Open Disk Utility： •Open Finder。 •Go to the Applications folder。 •Open the Utilities folder。 •Find and open Disk Utility。 3. Select disk：Select the hard drive or volume you want to resize in the list on the left，Make sure you select the entire hard drive and not a partition。 4. Resize partition： •Click the "Partition" button in the toolbar。 •In the pop-up window，You will see the partition chart of your current hard drive。 •Hover your mouse over the divider line of a partitioned chart，You can see a two-way arrow。 • Drag dividers to resize partitions。You can drag left or right，Expand or reduce partition size as needed。 5.Apply changes： •After adjustment is completed，Click the "Apply" button，Confirm your partition adjustment。 •Disk Utility will start the repartitioning process。this may take some time，The exact time depends on the size you resize and the speed of your hard drive。 6. wait for completion：Once the adjustment is complete，You can close Disk Utility，and start using the new partition settings。 Precautions •Back up data：Before resizing partition，Be sure to back up your data。Although Disk Utility is generally safe，However, any partition operation carries the potential risk of data loss.。 •Irreversible operation：Partition adjustment is an irreversible operation。Once changes are applied，It is usually impossible to revert to a previous state。