After upgrading to Catalina I am getting this error from the Time Machine backup app:
"Two os the disks to back up to have the same name. Rename one of the disks named "Macintosh HD-Data". Does anyone have an idea why this is happening and how to correct this error to get ™ working again? Thanks!
Thank you BDAquq, just the last confirmation I needed! I saw that one of the Macintosh HD - Data disks had the House icon and I also tested that that was the one, where newly created user files go. It is the ‘hidden’ volume in Macintosh HD - Systems.
I found also that I had to do something - not only because of the impact on Time Machine: as the system is confused, some of the newly installed applications landed in the additional, wrong partition! And then of course, don’t show up in Finder Applications, even though functional. And the iCloud Drive backup (when I turned it off) also ended up in the wrong partition.
So I moved the data that were created there since upgrade to my Desktop. Apart from the Applications, as that will not work. Then I unmounted (and therefore erased) the additional volume without the House icon for the user folder with the Disk Utility. Installed all lost applications again and all is working fine as far as I can tell, including Time Machine and all Applications, showing up in Finder.
I have all flash and also have this problem. Looks like I will be installing again.
No.. I have the exact same error as the OP. Same pop-up window. Same error message.
Yes, I filed last night a feedback. Now found out that only one volume is used actively for new documents. I will keep monitoring and then post an update.
I have the same issue. I only installed catalina once and yet i now have 2 disks
I am also facing same problem.
Hoot, great to hear, thanks for the report... good luck. :)
Great to hear Chris, thanks! :)
I have this same issue with Catalina and my Time Machine.
Hi there - can you please let me know the steps you did to add the number 2? Thanks!
Thanks but I don’t understand, what’s your mean about “number 2” is? Can you explain it, please?
Could you please explain how you fixed it by adding a number 2 at the end of the other disk? I can't work out how to do it!
Same problem here. Apple should fix their software.
I am also getting this on my iMac. This is a problem.
Time Machine error with Catalina
