My Imac won't let me erase my drive

[greyeyezz]

I'm recovery mode trying to do a clean wipe, hitting erase doesn't do anything. This is what I'm seeing

IMG_20230824_163637702 by https://www.flickr.com/photos/146780422@N05/

help

 

[Bigwaff]

Version of macOS you have installed? Which iMac model and year?

 

[greyeyezz]

2020 MXWU2LL/A Imac 500g ssd

I managed to get an internet install completed after a few reboots. There.s still something screwy with this drive. This is a fresh Catalina Internet install. Why do I have four volumes with one unmounted?

drv 2 https://www.flickr.com/photos/146780422@N05/

 

[Fishrrman]

"Why do I have four volumes with one unmounted?"

Because that's the way the new APFS file system on the latest OS releases is designed.
The "unmounted" volume may be the "Secure System Volume" (kept inaccessible to the user).

I could be wrong, others please correct me.

 

[greyeyezz]

I've seen two like the drive below but never three.

 

[greyeyezz]

disc 3 by greyeyezz, on Flickr

 

[greyeyezz]

I loaded up my programs and files and I seem to be a large chunk of space short, the internet install failed 20 minutes in with a triangle and exclamation point and error code 2005F. Me and the tech tried again and it worked. I think a blank partition was created during that failure.


drive1 by greyeyezz, on Flickr

 

[gilby101]

Post the output from Terminal command diskutil list

There is definitely something odd with your drive.

 

[greyeyezz]

I managed to delete those volumes and install Monterey. What happened is the APFS got updated in the Ventura install to a version that Catalina wasn't compatible with. Thats why I couldn't delete those volumes.

FA2 by https://www.flickr.com/photos/146780422@N05/