What is going on here? Phantom HD that cannot be removed?

[Jansenmyb]

I bought a second hand 13" 2017 macbook pro with the 128 SSD . When I bought it I noticed that the hard drive shows up twice in all the places where you are suppose to be able to see your drive info. I figured the previous owner did some kind of drive partition. I don't want it this way so I did a factory reset and erased each drive separately and reinstalled the os from scratch. Still there is this duplicate drive showing up. Have a look at these screens.

I have unmounted the 'phantom' disc in disc utilities but it comes right back after I restart the machine.

Can someone that knows what is going on please explain to me why my computer thinks there is another hd in it?
Can it be removed? And will it affect this computers performance if it cannot be removed?

Looking forward to some input on this.

 

[carlsson]

When you erased the drive before reinstall, did you just erase the container, or the entire drive (there's a difference)?

Press the "View" icon (upper left) and choose "Show all devices". After that, be sure to first erase all containers, then the drive itself. After that, reinstall macOS.

Be sure to have a backup.

 

[Jansenmyb]

Hey Carlsson. Thanks for this. By following your advice I came across a quick solution. It looks like all I had to do was 'right click' on this unused container and then 'delete APFS volume'. It has now disappeared and hasn't come back after restarting the machine which was the case when I unmounted it.

 

[carlsson]

Great! Strange though, that all containers say they are 121,02 GB... 🤔
I hope it works good for you. 👍

 

[dsemf]

Great! Strange though, that all containers say they are 121,02 GB... 🤔
I hope it works good for you. 👍

There is one container. Each volume in the container will show the container size. The Used size for the selected volume is shown in the details section.

For some reason, he had two volumes with the same name, Jansen Mac SSD. The bogus one was only 750 KB.

DS

 

[carlsson]

Yes, you are correct! I looked at the wrong place. 🤦‍♂️