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I have setup my backup folder and put the Automatic backups switch to on. In the Overview tab I cant press the "Back Up Now" because it is grayed out.

I am using Ubuntu 11.10 and here is the content of ~/.gconf/apps/deja-dup/%gconf.xml :

$ cat  ~/.gconf/apps/deja-dup/%gconf.xml
<?xml version="1.0"?>
<entry name="delete-after" mtime="1328975617" type="int" value="7"/>
<entry name="periodic-period" mtime="1328975577" type="int" value="1"/>
<entry name="exclude-list" mtime="1328975572" type="list" ltype="string">
    <li type="string">
<entry name="periodic" mtime="1328988637" type="bool" value="true"/>
<entry name="backend" mtime="1328975520" type="string">
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up vote 7 down vote accepted

That button is grayed out when a backup (or restore) is already in progress. Maybe one was running in the background?

Is the button enabled now?

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I found the problem. I could not make any backup on my backup drive because it was created with an earlier install. So I have no write access to this disk. I am still trying to figure how to fix this. I tried chmod and chown without success. I am locked out of my backup drive... – 01BTC10 Mar 18 '12 at 15:45
For me, it was the DejaDup popup window asking me to enter a passphrase to encrypt my first backup with. – Abhay Rana Sep 1 '12 at 18:19
Thanks, good to know. Since there is no progress bar it is impossible to tell. I corroborated this by looking at the running processes. – alfC Jul 12 at 19:05

My 'back up now' button was disabled. In my case the problem was that when I opened the Deja Dup config, the 'storage' option was set to 'Ubuntu One', and it opened another window for logging into that.

I changed the storage setting to a local drive, but it took me a while to realise I had to cancel the Ubuntu One login before Deja Dup would allow me to run a backup.

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This exactly what had happened with my setup. – Danny Staple Aug 27 '12 at 22:27
Same thing here. – DevNull Sep 29 '13 at 4:17

In my case, there was no backup running but deja-dup had a couple of things running.

I did a ps -eaf | grep dup and killed the pids. Then I started DejaDup from the menu and the button was active.

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I used killall deja-dup. My problem was that i used an external drive, and i'ts not automounted, so the program startup didn't read any backup source. What it's a bit surprising it's that it can backup once you mount because the monitor, but don't enable Restore button. – erm3nda Oct 5 '15 at 7:44
ps aux | grep deja
kill <pid of "deja-dup --backup --auto">

Immediately the backup button becomes active.

This should be reported as a bug as the frontend should either have a button to terminate running backups or automatically reconcile concurrent backups.

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I ended the process found in the system monitor and the buttons immediately 'ungreyed'. They way I got into the problem was canceling a backup to postpone figuring out a password for it. I had shut down the machine several times since then but it was still stuck there I guess.

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