Free Space Not Appearing in Disk Utility: Multiple Free Spaces Showing Up in Diskutil

Have you ever encountered the issue where free space is not appearing in Disk Utility? Or perhaps you've noticed multiple free spaces showing up in Diskutil? This can be a frustrating problem, but don't worry, we're here to help you understand and resolve it.

Disk Utility is a built-in tool on macOS that allows you to manage your storage devices, partitions, and volumes. It's a powerful tool that can help you format, erase, and repair disks. However, sometimes it can be a bit confusing, especially when it comes to free space.

When you open Disk Utility, you expect to see the available free space on your disk. However, there are instances where the free space is not displayed correctly or not appearing at all. This can be due to a few different reasons, and we'll explore some of the common causes and solutions below.

1. Unallocated Space

One possible reason for free space not appearing in Disk Utility is that it might be unallocated. Unallocated space refers to a portion of your disk that has not been assigned to any partition or volume. Disk Utility might not display unallocated space by default.

To check if you have unallocated space, you can use the Terminal application. Launch Terminal from the Applications folder or by using Spotlight search. Once Terminal is open, type the following command:

This command will list all the disks and partitions on your system. Look for any unallocated space listed as "Free Space" or similar. If you find unallocated space, you can proceed to create a new partition or volume using Disk Utility.

2. Hidden Partitions

Another reason for free space not appearing in Disk Utility could be hidden partitions. Hidden partitions are created by the system for various purposes and are not meant to be visible to the user.

To check if there are any hidden partitions, you can use the Terminal application again. Open Terminal and enter the following command:

Look for any partitions labeled as "Hidden" or "System." These partitions are usually small and might not be displayed in Disk Utility. If you find any hidden partitions, there's no need to worry as they are typically reserved for system use.

3. File System Errors

If you're experiencing multiple free spaces showing up in Diskutil, it could be due to file system errors. File system errors can occur when there is corruption or inconsistencies in the way data is organized on your disk.

To check for file system errors and repair them, you can use Disk Utility's First Aid feature. Open Disk Utility, select the disk or volume you want to check, and click on the "First Aid" button. Disk Utility will scan for errors and attempt to fix them.

If Disk Utility is unable to repair the file system errors, you might need to consider using a third-party disk repair tool or seek professional assistance.

4. Incompatible File System

One possible reason for free space not appearing in Disk Utility is that the file system on your disk is not compatible with macOS. macOS supports various file systems, such as APFS, HFS+, and FAT32. If your disk is formatted with a file system that macOS cannot recognize, it might not display the free space.

To check the file system of your disk, open Disk Utility and select the disk or volume. The file system will be listed under the "Format" or "File System" section. If the file system is incompatible, you might need to reformat the disk with a compatible file system. However, be aware that reformatting will erase all data on the disk, so make sure to back up any important files before proceeding.

Conclusion

Free space not appearing in Disk Utility or multiple free spaces showing up in Diskutil can be frustrating, but with the right understanding and troubleshooting steps, you can resolve these issues. Remember to check for unallocated space, hidden partitions, file system errors, and incompatible file systems. If you're unsure or unable to resolve the problem on your own, don't hesitate to seek professional help.