backup location not available waiting for a network connection

Asked by DrPotoroo

I am going mad trying to get backups working on one of my machines. I have set the backup location to ssh a server on my local network. I have ssh keys set up. I can ssh from a terminal and add, edit and delete files in the specified backup location. However, when I try to run a backup, either from the ubuntu gui or commandline, it stalls with the message "Backup location not available. Waiting for a network connection ..."

The (desktop) computer in question had to have ubuntu intalled by cloning my laptop's ubuntu partition which was on Ubuntu 15.04; I have since upgraded this desktop machine to Ubuntu 16.04 - maybe this could explain the strange behaviour somehow. But I can't figure it out. I don't think I'd ever set up backups on this machine between when I cloned Ubuntu 15.04 to it and when I upgraded ("last backup" is reported as 219 days ago - I think that's actually a record of the history of backups on the cloned laptop).

The network connection is a wired connection (eth0).

I have deleted the .ssh/known_hosts file for the user I'm trying to get backups working for and then connected to the server via a terminal to ensure the known_hosts file is there and no user input is required.

Running DEJA_DUP_DEBUG=1 deja-dup --backup gives me the same error in the gui, with no clues in the debug output as to what is going wrong (incidentally, no output at all is shown until I cancel the backup on the stalled gui window).

Setting up backups on a different user account that was created AFTER the laptop partition was cloned to this computer, and has never been setup for backups before, fails with the same "wating for a network connection" message.

I can't seem to find reports of any similar problems from my googling.

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Launchpad Janitor (janitor) said :
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This question was expired because it remained in the 'Open' state without activity for the last 15 days.