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I configured Deja-dup to make a daily backup of my whole data drive. Now I get an error message each time, telling me, that not all files could be backuped. But i cannot find any Deja-dup logs in /var/log nor in the syslog. Where does it display the missing files?

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  • 1
    Did you check /tmp/deja-dup.log?
    – devav2
    Sep 19, 2012 at 8:05
  • 1
    I could not find a file there
    – Raffael
    Sep 19, 2012 at 10:10

2 Answers 2

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It seems that it doesn't really save them anywhere, but if you run it with the environment variable DEJA_DUP_DEBUG=1 you can get all the information that way.

Source: https://answers.launchpad.net/deja-dup/+question/125731

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  • Now that is some verbose output. The log file has >500MB for one run of deja dup. My solution is now to run the command manually again and check the gui output.
    – Raffael
    Sep 24, 2012 at 9:36
  • DEJA_DUP_DEBUG=1 deja-dup seems to work to get output to console (it should be possible to redirect it wherever desired), thank You, but I think it's worth mentioning, that the application should de closed before running it. killall deja-dup should help (maybe also killall deja-dup-monitor could be required).
    – kcpr
    Aug 26, 2021 at 7:21
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In Deja-Dup on Ubuntu 16.04 (default Backup app installation), there are limited log files in ~/.cache/deja-dup/. It looks like only fairly basic information is stored by default.

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