Summary: Mac Hard drive partitioning is easily manageable through Disk Utility, but, with the launch of macOS Sierra 10.12, this otherwise helpful Mac feature has seen some unexpected issues. Stellar Partition Manager Software is ideal in performing Mac partition management functions when Disk Utility fails.
Though Apple utilities are renowned for being robust, sometimes, they fail to work on some OS versions. Take the Disk Utility for example. This helpful utility that allows users to perform Mac partition management, fix disk permissions, create disk image, and other critical tasks doesn’t work so well when it comes to latest Mac OS versions such as El Capitan and macOS Sierra. While El Capitan witnessed minor issues with this utility, many macOS Sierra users have recently posted queries on online forums about major issues where they’ve complained that Disk Utility can’t partition Mac external hard drive, is missing the disk repair feature, or cannot burn CD/DVD.
If you’ve faced any of these issues, reading this post till the very end will help you figure out an easy solution for such situations.
Partitioning issues on macOS Sierra
Some of the most common problems users faced while trying to partition their hard drives on macOS Sierra included:
- Partition option in Disk Utility greyed out
- Disk Utility incorrectly showing some space as occupied even after erasing hard drive
- Error messages prompting users to repair disk permissions every time they tried to repartition it
While these problems sound quite simple, a user who encounters them repeatedly even after trying out fixes like unplug-replug, restart, and drive erase could easily get irritated. But it is important to realize that there are workarounds to every problem and if they too don’t work, you always have a reliable third-party macOS sierra partitioning tool to help you out.
A few workarounds
If you’re facing one of the above-mentioned problems, here are some workarounds for them:
“Partition” option grayed out
Try running the following command on Terminal:
diskutil erasedisk hfs+ External GPT /dev/disk2
Once the command finishes executing your drive might be named to something else (as opposed to what name you gave it earlier) and might show its own partition named simply “External,” but it will show the “Partition” option when highlighting the HDD.
Free space shown as occupied or Disk Permission errors
Try partitioning the drive on a computer running a different version of OS, for example, El Capitan. Though initial attempts may throw same errors, erasing the drive on a Mac running the different OS (El Capitan here) will most probably get rid of the false “occupied” and “disk permissions” messages. Thereafter, if you try to repartition the drive on macOS Sierra, it should work.
The sure-shot way
If you’ve found the solution to your problem, you can stop reading the article now; however, if you still have not found a solution, then avoid all hassles and switch to a reliable third-party macOS sierra hard drive partitioning software — Stellar Partition Manager Software. The efficient product manages partitions on Mac hard drives including the BOOT volume and allows you to perform basic partitioning operations such as creating, deleting, resizing, formatting, and hiding or revealing a partition without causing data loss. The software meticulously plans all partition operations to ensure data safety and also enables you to roll back any unwanted changes before committing the action.
The application is completely D-I-Y owing to its interactive interface. Further, it enables users to perform batch operations thus preventing the risk of data loss. What’s more, the product’s demo version allows you to format, delete, hide, and reveal a Mac partition absolutely free!
So if you encounter partitioning issues on macOS Sierra or any other future OS version and are looking for a quick and reliable solution, then leverage Stellar Partition Manager that performs a flawless partition management.