Deleting Volumes

I cannot understand why Mac has to be so difficult to delete a Volume in Disk Recovery.

I have three small volumes that I'm unable to delete. One is a 17.4 GB, one is a 874mb and the last one is a 648mb and then my Base at 980 +/- a few gb....I've tried everything, erase, unmount mount and I'm unable to restore these three Volumes to the Mac Base system. Format all at EXfat, Journales, APFS all and no matter what or how I do it , I'm unable to DELETE which Windows has but not Mac...WHY?

I'm trying to put this 2019, 27'' Imac to factory default so I can give to my brother. But am unable to delete the three volumes or restore to the base. I'm at a total loss as I have spent about four hours trying to delete these volumes and cannot do so.

iMac with Retina 5K display, macOS 10.14

Posted on Mar 29, 2020 1:28 PM

Top-ranking reply

Barney-15E

Level 10

122,138 points

Posted on Mar 29, 2020 6:57 PM

Mac Base System isn't what you think it is.

You cannot alter Mac Base System--it is an installer function.

Boot into Internet Recovery (cmd-opt-R on restart).

Open Disk Utility and set the View option to Show All Devices.

Select the startup drive device.

Erase. Format as APFS with GUID partition table.

Quit Disk Utility.

Reinstall macOS.

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Deleting Volumes

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