I have an iMac 5K with Mojave 10.14.6. The iMac has an internal SSD and 3 external USB HD drives connected. All these drives are backupped by Time Machine. I need to perform a clean install of Catalina on the iMac and I would like to avoid Time Machine to backup all the drives another time. My Documents on the internal HD are stored on OneDrive. How can I do? After clean installation and after restoring documents from one drive may I use tmutil inheritbackup?