Will Deja Dup backup data from two user accounts on the same Ubuntu 14.04 computer to an external disc? I have successfully backed up and restored the main Administrator account but not a second user account.
Yes. I have three users including the admin. All gets backed up in an internal hard drive in separate folders.
Each user has to setup Deja Dup from their own account. Backup will only happen if and when the user is logged on.
I don't have any experience using Deja Dup with an external hard drive. You may have to make sure your other user has the read/write access to the backup folder of the external hard drive.
Hope this helps