Messed up HDD Volumes?

[willie45]

Hi

I'm not sure if I messed up and if so how to fix. I was trying to add a partition to an external HDD but in a woozy moment partitioned my HD instead? I might have added a volume ? At least that's what I believe happened. I'm not sure and I enclosed screenshots of the information I have available.

I share the Mac with my wife and we have different accounts on it with different sign- ins.

Can someone interpret what I've done and how to remedy please? I want to get back to my initial situation.

 

[Taz Mangus]

Catalina automatically splits the container into 2 volumes, the read only OS volume (Macintosh HD) and a read/write user data volume (Macintosh HD - Data).

Your posted pictures all look normal. What leads you to believe there is an issue?

You should see a single drive named “Macintosh HD” show up on your desktop.

 

[willie45]

Thank you Tax. I was distracted when I was doing this and when I looked it had shut down and the results were as above. It was the tow separate bit on being the "Other Volumes" bit ( the bit that was greyed out and says 648Gb) and the other a free bit of 460Gb that worried me. I thought maybe I'd added a volume. If you believe I haven't done anything then I'm delighted. Thank you for putting my mind at rest with your prompt help.
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This is the information tab I get when I look at the HD so I'm assuming it's all fine

 

[Taz Mangus]

Thank you Tax. I was distracted when I was doing this and when I looked it had shut down and the results were as above. If you believe I haven't done anything then I'm delighted. Thank you for putting my mind at rest with your prompt help.

No problem. One thing that you can do to see this better is to turn on "Show All Devices" in DiskUtility: