Deja Dup

Johnny Rosenberg gurus.knugum at
Sun Jan 10 09:42:23 UTC 2016

2016-01-10 9:08 GMT+01:00 Tony Arnold <tony.arnold at>:

> Johnny,
> On 09/01/16 18:02, Johnny Rosenberg wrote:
> Anyway, Deja Dup has been around for a while and I thought that I wanted
>> to give it a go, but I just can't figure out how to make it actually do
>> anything…
>> Here are my settings.
>> Folders to save: Home (<MyUserName>)
>> Folders to ignore: Trash
>> Place to store: Local folder (/media/<MyUserName>/Backup 2000/Deja
>> Dup/<MyName>)
>> Schedule: Every day, keep for at least 6 months
> These settings look OK to me.
> The button at the upper right corner of the window is ON.
>> At Overview, both buttons (”Reblaha” and ”Backup now”) are greyed out
Ooops, I was supposed to replace ”Reblaha” with the correct word (I run
Ubuntu in Swedish…), when I found out the translation, but I forgot all
about it… :P I think ”Restore” is the word I was looking for.

> and can not be used.
> This is normal if you have that button set to ON. Turn the button off and
> you can then use the Backuo Now as a test.

They were greyed out in both cases, but since then I restarted my computer
(since it was night and I was going to sleep). I'll check it out right away…
Ah, now they are not greyed out anymore! Turning the button to OFF didn't
change anything, though, except that the text above the ”Backup now…”
button changed slightly.

Just pressed the button and it seems to work. It asked me for a password,
or to disable passwords, which I did, and now it's backing up.

> So how do I make the backup to actually do something? ”Backup now”
>> doesn't work and nothing happens at all. My USB drive is turned on and
>> working.
>> Also, WHEN is it supposed to backup my files? That is at what time? The
>> perfect time would of course be when I turn my computer off (I didn't do
>> that yet, though), making sure a backup is taking place when no more
>> files will be added or changed for that session. Is that how it actually
>> works?
> OK. Deja Dup only operates when you are logged in. It is controlled by a
> small daemon that gets started when you log in and runs as you. If you
> don't logout and leave your machine running, the backups will happen at
> about 1am in the morning. Otherwise they will happen shortly after you
> login.

> You may need to logout and back in again to get the daemon to run.
> I've not seen anywhere where you can control what time it runs.

I'm surprised that the user can't set the time.

> Do I need to turn my USB disk on before backup is taking place? For
>> instance, if I try to backup using my own script, the script pops up a
>> dialogue that tells me that I need to start my USB drive, and then it
>> gives me 2 minutes to do so. During those two minutes, it constantly
>> checks for the drive and starts the backup automatically when it finds
>> it. Does Deja Dup use a similar approach?
> Deja Dup assumes the backup target is present and available. I backup to a
> local directory so I've not tried this, but I suspect the backup will fail
> if it cannot write to the target device.

Too bad if that's true, because my USB drive is a little bit noisy…

And talking about backing up, saving files and things like that: Are events
like ”a file has been changed/added/removed" logged somewhere?

Kind regards

Johnny Rosenberg

> HTH.
> Regards,
> Tony.
> --
> Tony Arnold, IT Security Analyst, University of Manchester.
> T: +44 (0) 161 275 6093, F: +44 (0) 705 344 3082,
> M: +44 (0) 773 330 0039, E: tony.arnold at
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