I’m trying to move my Time Machine “Backups.backupdb” from a 500GB Sandisk Extreme Portable SSD to a 1 TB one.
I’ve been following the instructions here: https://support.apple.com/en-us/HT202380
The main problem is that the copy in finder never seems to complete, it initially identifies that it has about 450GB to transfer from the 500GB drive. When it gets to “450GB of 450GB copied” both values then start going up. When it got to 1TB of 1TB copied (from a 500GB drive? How’d it do that?) I stopped the copy.
I’ve tried this a number of times, reformatting the drive, changing the permissions and starting the copy, each attempt resulting in the amount of data copied exceeding the size of the drive it’s reading from.
The only thing I can see that I’ve done different to the instructions is that they state the scheme should be “GUID Partition Map” though I don’t see an option to set that. Only an option to set the format for which I selected “Mac OS Extended (Journaled)” as per the instructions. Both old and new drive show as MBR partition map so I figured maybe this wasn’t a problem. I doubt that’s related to the copy issue but mention it for complete-ness
Anyone seen anything like this before and is there a simple fix?
Oh, still on Mojave, haven’t jumped to Catalina yet and the Mac is a 2017 15” MBP if that’s any relevance…