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I'm trying to put my iMac back to Factory Settings for resale but in Disk Utility I'm showing two Internal Drives:
Macintosh HD. 11.33 GB Used
Macintosh HD - Data. 1.23 TB Used
All the videos I watched show just one internal so do I erase both or am I missing something?
OS Catalina 10.15.6
2015 27" 2TB Fusion Drive
Backup Completed
iMac 27″, 10.15
You need to erase the disk, not just the volumes on the disk.
Select Show All Devices from the View button in the toolbar.
Select the device at the top that holds the Container which holds those two Volumes.
You need to erase the disk, not just the volumes on the disk.
Select Show All Devices from the View button in the toolbar.
Select the device at the top that holds the Container which holds those two Volumes.
Thanks for the assist. I ended up chatting with Apple Care. They didn't understand why the disk wouldn't show up wither but we did a series of first aid checks on the drives and it finally showed up. All is good with the world again (at least when it comes to this Mac)!
Also, since you have a Fusion drive, do you see 2 separate disks in Disk Utility? (Such as AppleHDD and AppleSDD)? If so you may need to use Terminal to merge them again:
Ok so I did that and then the when I tried to reinstall macOS it said I needed an internet connection and then it rebooted on its own and I'm back to the macOS Utilities but nowhere to go. The mouse wont connect so I cant select anything and the keyboard of course is no help.
Hey there!
Did you select the main disk above “Container Disk)? Then erased? (Select APFS format if Catalina, and always GUID Partition Map).
If you select View > Show All Devices, in Disk Utility, (As Barney-15E said), you should see the top level disk, and if erased correctly should work, (Unless it gives an error while
erasing). When you do this, the disk name defaults to “Untitled” if you didn’t change this, then that’s what should show up as a destination disk when Reinstalling the OS.
If you erased it this way, does it show “Untitled” under the Container Disk, or something like “disk1s1”?
New issue. I did a workaround and used a wired mouse and keyboard. However, when I go to the install where it reads "Select the disk where you want to install macOS," there is nothing there!
Glad it worked out!
Factory Reset Showing Two Internal Drives
