No disk available to reinstall MacOS

[Missy2022]

I was preparing my iMac for resale and must have erased something critical. When I try to install MacOS in recovery mode (the only option right now it is giving me is High Sierra), there is no disk to put it on. I am attaching a picture of the disc utility screen.

Can anyone help?

 

[casperes1996]

Select the container and hit + to add a volume at the top then install to that volume

 

[casperes1996]

Oh wait that’s a Fusion Drive. You might want to recombine them into one drive. Look up resetting fusion drives for that. Right now You have the ssd and hdd split.

 

[Missy2022]

Oh wait that’s a Fusion Drive. You might want to recombine them into one drive. Look up resetting fusion drives for that. Right now You have the ssd and hdd split.

Thank you so much for answering. I will attempt to reset the Fusion drive. I hope I don't make the problem worse ;-).

 

[Missy2022]

Oh wait that’s a Fusion Drive. You might want to recombine them into one drive. Look up resetting fusion drives for that. Right now You have the ssd and hdd split.

So, resetting the Fusion drive was not possible. Now what?

 

[bogdanw]

See "If you're using macOS High Sierra or earlier"
https://support.apple.com/en-us/HT207584

 

[appltech]

Seems like a problem with CoreStorage.
This might be helpful:

How to fix a split Fusion Drive - Apple Support

If your Fusion Drive appears as two drives instead of one in the Finder, it's no longer working as a Fusion Drive. Here's how to fix it.

support.apple.com