Two macintosh hd-data volumes - safe to delete?

chicostrat wrote:

thanks! Here it is with "Show All Devices" enabled.

I just read the the referenced link - that's helpful.

I assume that last Macintosh HD - Data volume is safe to delete then

https://discussions.apple.com/content/attachment/d7febce9-dbcd-47a9-acff-7cafa967dbf3

All Volumes share space with the container with no penalty—

Yes you can delete the bogus / duplicate volumes...

Look at the mount point—if you have Two  Macintosh HD - Data

from Disk Utility.app you can see the mount point

One will be mounted at /System/Volumes/Data   this is the one you want to keep,

The other will be mounted at /Volumes and you can simply use the “ -“ to delete it.

ref: About the read-only system volume in macOS Catalina - Apple ...

https://support.apple.com/en-us/HT210650

here is an example of a clean Monterey macOS properly formatted drive:

chicostrat wrote:

Thanks everyone - these all helped. the last image clinches it. I'll delete the last volume in my list so it looks like the above.

I'm prepping this for my son so I don't need to do a low level format. Just wanted to make sure he didn't have my old data or any weirdness as a result of the redundant drive.

This is a bit different 'scenario' then the way you posed the issue above...

ref: What to do before you sell, give away, or trade in your Mac

you can corroborate mount point and the data volume you want to delete. Reboot to test

chicostrat wrote:

Hi, I saw several threads already on this subject but they have different volume structures than what I have here so I wanted to ask again to be sure...

is it safe to delete the highlighted partition and its parent volume? I just wiped the computer, did a fresh install of Big Sur and then upgraded it to Monterey.

https://discussions.apple.com/content/attachment/d29a9e3b-a493-4837-a178-49220674b938

For context, that volume is now empty. Even though this was a fresh install, it asked for my password to unlock it and in it, I found some folders that I had already backed up. So I deleted the contents.

You get a better picture if from you DiskUtility>View>Show All Devices. A clean install would be to erase/format/initialize the parent Drive— not the Container level, not the Volume level.

or from the Terminal.app copy and paste:

diskutil list internal

It appears like a messy re-install of the macOS or some such...

ref: Add, delete, or erase APFS volumes in Disk Utility on Mac

Hey there! If you need to delete a disk drive make sure you have erased your mac, if you are planning to sell your Mac you can erase your “Macintosh HD - Data” disk. WARNING: Please note that erasing a disk drive will delete all data on that disk drive. So if your planning to sell your Mac then you can safely delete that drive. If you need help doing this please click the link below: INTEL BASED MAC:https://support.apple.com/en-us/HT208496 MAC SILICON: https://support.apple.com/en-us/HT212030 Hope this helps!

Possibly, but to double-check, please post the results of the following command in the Terminal app: diskutil list