Time Machine error. Two of the disks to back up have the same name
I am getting this error. Two of the disks to back up have the same name. Rename one of the disks named “Macintosh HD - Data”. But I do not have two disks with the same name. I just bought a new iMac and I am using Big Sur. My old one had been using High Sierra, and I migrated the data.
[Re-Titled by Moderator]