Upgraded to Ventura 13.2, now have 2 Macintosh HD's, now what

Nathan Gogol wrote:

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *28.0 GB disk0

1: EFI EFI 314.6 MB disk0s1

2: Apple_APFS Container disk2 27.6 GB disk0s2

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_APFS Container disk2 1000.0 GB disk1s2

/dev/disk2 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +1.0 TB disk2

Physical Stores disk1s2, disk0s2

1: APFS Volume Macintosh HD - Data 798.9 GB disk2s1

2: APFS Volume Preboot 1.8 GB disk2s2

3: APFS Volume Recovery 1.1 GB disk2s3

4: APFS Volume Macintosh HD 8.9 GB disk2s4

5: APFS Snapshot com.apple.os.update-... 8.9 GB disk2s4s1

6: APFS Volume Macintosh HD 2 - Data 2.2 MB disk2s5

7: APFS Volume VM 1.1 MB disk2s7

This does not appear to be a fusion drive.

You have a 1TB drive and your user data occupies 798.9 GB

That all looks normal; but for the fact a second Macintosh HD - Data Volume was created

i.e. Macintosh HD 2 - Data is empty... with only 2.2 MB

To proceed look at your DiskUtility.app>View>Show All Devices

if your "Macintosh HD - Data" 798.9 GB mount point is showing /System/Volumes/Data this is your Data Volume you want to keep.

All Volumes share space in the Container with no penalty, therefore

Verify the Macintosh HD 2 - Data Volume is selected & showing a mount point at /Volumes/Data, you simply

use the “ - “ to delete it.

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

I have no explanation why the installer glitched in this manner. You should be good to go by deleting the rogue volume and I would suspect your Time Machine issue is resolved.

Nathan Gogol wrote:

So as the total says, did the recent update of Venture which was 13.2, did its install, rebooted, first thing was

time machine error saying

"Two of the disks to back up have the same name. Rename one of the disks named “Macintosh HD - Data”,

that's when i notice i have two drives, one called "Macintosh HD", the other "Macintosh HD - Data".

Anyone else have this issue and what do i do about it, thank you?

That is normal... and goes all the way back to macOS Catalina...

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

About the read-only system volume in macOS Catalina or later - Apple Support

Leaving the default Volumes names will keep the confusion to a minimum.

If you had renamed these Volumes I could see this as a user induced error as you describe... (?)

I have not seen this error under any other circumstance simply updating the macOS to 13.2.

You can see the big picture from the Terminal.app copy & paste:

diskutil list internal

ex

dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI EFI 314.6 MB disk0s1

2: Apple_APFS Container disk1 1.0 TB disk0s2

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +1.0 TB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 8.9 GB disk1s1

2: APFS Snapshot com.apple.os.update-... 8.9 GB disk1s1s1

3: APFS Volume Macintosh HD - Data 399.8 GB disk1s2

4: APFS Volume Preboot 1.9 GB disk1s3

5: APFS Volume Recovery 1.1 GB disk1s4

6: APFS Volume VM 3.2 GB disk1s5

Start a new Time Machine back up would be a simple resolve...

Erase and reformat a storage device in Disk Utility on Mac

Erase and reformat a storage device in Disk Utility on Mac - Apple Support

Nathan Gogol wrote:

Does your Fusion Drive need fixing...(?)

well I’ll assuming something ain’t right. It’s never been mounted as two separated drives in finder/desktop until this update.

no this is not a secondary drive or anything. Factory computer as always has been.

Did you run the command line in Terminal...?

lets see the output here

ref: How to fix a split Fusion Drive - Apple Support

Nathan Gogol wrote:

Well then I must be abnormal lol, I’ve never had two drives of my internal hard drive be mounted on my desktop or in finder like this ever. Have ran every OS they released. This is a first.

I renamed the one of the HD (I think the macintosh hd - data) one to macintosh hd 2 - data and my Time Machine was able to carry on backing up like it did before.

But going forward not sure if I should leave this alone or run the terminal commands for fixing fusion separation

Does your Fusion Drive need fixing...(?)

Is this a secondary drive you added in addition to the functioning Fusion Drive...(?)

Did you try renaming the problem drive and test?

There is an iMac community for more insight —iMac - Apple Community

Nathan Gogol wrote:

Thank you. Interesting it says its not a fusion drive yet when i went to settings i get this

https://discussions.apple.com/content/attachment/14253e5c-27e8-416b-bb4d-388812c65574

But if you're saying i can delete that extra drive so much then better. thanks

Thanks for posting that screen shot.

Yes from the command line I could not see that information and was curious at how to discern that info...

maybe someone else will step in and clarify.

Admittedly I am no iMac or fusion drive expert here, thus my references above to the iMac community.

Non-the-less your diskutil list looks normal from what I see—and if the Macintosh HD 2 - Data is not mounted as /System/Volume you are still safe to delete it . the 2.2 MB shows it is virtually a empty Volume and an oddity.

Read the "Apple Recommended" reply in How do I change a name of my hard drive - Apple Community, or the answer marked as Solved in Time Machine Back Ups - Apple Community.

Looks like a horrible fusion drive to me: a fusion drive TYPICALLY consists of e.g. a 125GB SSD coupled,with a (say) 1TB HDD [Typically part of the 2014 Mac Mini range]. Trying to run e.g. any SSD in conjunction with the '125GB SSD is dubious/difficult: however there are some options; for example a popular one is scrap the main (125Gb SSD) and fit a e.g. 1TB SSD; secondly throw away the HDD i.e. separate the fusion drive either PHYSICALLY and or codingly and use that for storage. I've done that physically i.e. the second option.

Look up your serial number on "thebookyard.com" to find out for sure.