time machine – Cannot inherit / associatedisk TimeMachine backups (APFS) from a reformatted exterior drive

I needed to reformat an exterior raid drive (known as Joshua) after increasing its dimension. After reformatting it, I restored it from our TM drive (known as Moses). Nonetheless as soon as every little thing is copied over and I am going to again it up, TM desires to name the brand new drive Joshua 1, and naturally take up the total area of the drive.

I ought to point out at this level, that we’re on a 2023 MacMini M2 Professional, with Sonoma 14.5. This appears to be important as a result of the current variations of MacOS format a TM drive as APFS by default. For some cause, inheritbackup and associatedisk don’t work with APFS, or in the event that they do, it’s not properly documented.

Inheriting Time Machine Backup: Invalid Goal mentions a technique to resolve transferring time machine from one Mac to a different. This case is considerably completely different in that I’m “merely” making an attempt to get TM to acknowledge the “Previous” Joshua backup as being the identical because the “New” Joshua’s knowledge.

As this different submit suggests making an attempt, I acquired the prolonged metadata from the respective folders in order that hopefully I can write new metadata. For some cause, although if I put xattr -l /volumes/Joshua into terminal, it doesn’t give me any metadata. Unsure if I’m doing it improper, or if Joshua merely does not have any metadata.

I put the UUID metadata from the TM backups right into a spreadsheet (I’ve two backups that I pulled knowledge from; and a 3rd backup that I’m holding offline for security causes.) I can not seem to deliver the screenshot in, however com.apple.backupd.SnapshotVolumeUUID are an identical for the previous Joshua between Moses and OffsiteBackup. I assumed I discovered what I wanted; nevertheless, the com.apple.backupd.SnapshotVolumeUUID for the brand new Joshua are completely different for Moses and OffsiteBackup.

My final objective is to get Moses (and the opposite offsite backups) to affiliate the “new” Joshua with the backup knowledge for the “previous” Joshua.

1. I’ve not been in a position to get inheritbackup or associatedisk to work; and my analysis signifies that that is because of the TM drives utilizing APFS. Is that this right?

2. Is com.apple.backupd.SnapshotVolumeUUID the “magical” metadata that I want to alter to get Moses to acknowledge the “new” Joshua instead of the “previous”? Or is there one thing else? And the way do I get xattr to point out me what the metadata for the brand new /Volumes/Joshua?

TM will probably be busy restoring knowledge for many of the weekend, however I will be monitoring this submit over the weekend. Thanks for any provide help to can provide.