Can’t Partition a Hard Drive in Mac

by | May 9, 2019 | Mac | 0 comments

Issue

So you’re reformatting a hard drive and for whatever reason cannot create partitions because the partition option in Disk Utility is greyed out.

Environment

Platform/Operating System: macOS Mojave

Solution

Go to Disk Utility, then click the View button on the upper left-hand corner and select “Show All Devices“. Now select the parent hard drive you want to partition. Give it a name, select a Format – I usually choose Mac OS Extended (Journaled). Finally, select a Scheme – I typically use the GUID Partition Map scheme. Finally, click Erase. After which, you should be able to select your newly created volume and create partitions – Partition icon no longer greyed out.

Conclusion

I don’t claim to be an expert on hard drives and partition schemes but this is what worked for me.

Important Note

This may or may not work in different environments and you should always remember to back up your data before making changes or applying any solution regardless of source.

Related Reading

9 Composition Photography Tips From Steve McCurry

Awesome composition photography tips!

Bay Area Local Leaves For the Open Road

Travel the open roads and explore the United States with Michael Merto!

Perpetual Change – Autumn in the Alps

Breathtaking views of the Alps matched with excellent piano!

10 Essential Apps for Architects: Apple Edition

For iPhone Measure Master Pro Calc ($14.99) Feet-Inch-Fraction and Metric Conversion Calculator. Scala ($2.99) All your scales in one app allows you to measure printed drawings when you don't have your physical one. Converter: Units & Currencies (Free) Convert...

Monsoon IV (4K)

Mike Olbinski beautifully captured amazing footage from 2017’s summer storm season!

Stop Stealing Dreams

“On the future of education & what we can do about it.” – Seth Godin

2016: Year In Review

A compilation of 2016 a year in review videos that gives us a glimpse of what happened in mainstream planet earth this year. TIME https://youtu.be/Z0gJMOyXeHU Top10Archive https://youtu.be/g39hd8IgjB8 Google https://youtu.be/KIViy7L_lo8 Financial Times...

Britney Spears Speed Painting by Igor Kazarin

Igor Kazarin Speed Paints Britney Spears

Show Me The Money: Have you received your Stimulus Check yet?

The fact that some people received their checks is a good indication for the rest who are anxiously waiting.

Interstellar Parking

Who knew leaving a parking lot could be this intense?