Every week Deja-Dup starts performing backups as expected but eventually no message is displayed indicating whether the backup was successful or not. Because I doubt, I started Deja-Dup from the terminal and it shows some disturbing messages ('CRITICAL') but I'm not sure what it means actually.
Could you let me know how I can ensure that my backup was successful and if any other problem exist?
Here is the terminal output (it is reproducible.):
hans@msi:~$ deja-dup-preferences
** (deja-dup-preferences:1910): CRITICAL **: deja_dup_config_location_add_volume_full: assertion `uuid != NULL' failed
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:196: Running the following duplicity (1945) command: duplicity 'collection-status' '--exclude=/home/hans/Videos' '--exclude=/home/hans/Downloads' '--exclude=/home/hans/.local/share/Trash' '--exclude=/home/hans/.xsession-errors' '--exclude=/home/hans/.thumbnails' '--exclude=/home/hans/.Private' '--exclude=/home/hans/.gvfs' '--exclude=/home/hans/.adobe/Flash_Player/AssetCache' '--exclude=/home/hans/.cache/deja-dup' '--exclude=/home/hans/.cache' '--include=/home/hans' '--include=/home/herbert' '--exclude=/home/.ecryptfs/hans/.Private' '--exclude=/sys' '--exclude=/proc' '--exclude=/tmp' '--exclude=**' '--gio' 'ftp://hans@192.168.1.100/backup/deja-dup' '--no-encryption' '--verbosity=9' '--gpg-options=--no-use-agent' '--archive-dir=/home/hans/.cache/deja-dup' '--log-fd=21'
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:568: duplicity (1945) exited with value 0
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:196: Running the following duplicity (1949) command: duplicity '--exclude=/home/hans/Videos' '--exclude=/home/hans/Downloads' '--exclude=/home/hans/.local/share/Trash' '--exclude=/home/hans/.xsession-errors' '--exclude=/home/hans/.thumbnails' '--exclude=/home/hans/.Private' '--exclude=/home/hans/.gvfs' '--exclude=/home/hans/.adobe/Flash_Player/AssetCache' '--exclude=/home/hans/.cache/deja-dup' '--exclude=/home/hans/.cache' '--include=/home/hans' '--include=/home/herbert' '--exclude=/home/.ecryptfs/hans/.Private' '--exclude=/sys' '--exclude=/proc' '--exclude=/tmp' '--exclude=**' '--dry-run' '--gio' '--volsize=25' '/' 'ftp://hans@192.168.1.100/backup/deja-dup' '--verbosity=9' '--gpg-options=--no-use-agent' '--archive-dir=/home/hans/.cache/deja-dup' '--log-fd=24'
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:571: duplicity (1949) process killed
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:196: Running the following duplicity (1954) command: duplicity 'collection-status' '--exclude=/home/hans/Videos' '--exclude=/home/hans/Downloads' '--exclude=/home/hans/.local/share/Trash' '--exclude=/home/hans/.xsession-errors' '--exclude=/home/hans/.thumbnails' '--exclude=/home/hans/.Private' '--exclude=/home/hans/.gvfs' '--exclude=/home/hans/.adobe/Flash_Player/AssetCache' '--exclude=/home/hans/.cache/deja-dup' '--exclude=/home/hans/.cache' '--include=/home/hans' '--include=/home/herbert' '--exclude=/home/.ecryptfs/hans/.Private' '--exclude=/sys' '--exclude=/proc' '--exclude=/tmp' '--exclude=**' '--gio' 'ftp://hans@192.168.1.100/backup/deja-dup' '--verbosity=9' '--gpg-options=--no-use-agent' '--archive-dir=/home/hans/.cache/deja-dup' '--log-fd=25'
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:568: duplicity (1954) exited with value 0
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:196: Running the following duplicity (1957) command: duplicity '--exclude=/home/hans/Videos' '--exclude=/home/hans/Downloads' '--exclude=/home/hans/.local/share/Trash' '--exclude=/home/hans/.xsession-errors' '--exclude=/home/hans/.thumbnails' '--exclude=/home/hans/.Private' '--exclude=/home/hans/.gvfs' '--exclude=/home/hans/.adobe/Flash_Player/AssetCache' '--exclude=/home/hans/.cache/deja-dup' '--exclude=/home/hans/.cache' '--include=/home/hans' '--include=/home/herbert' '--exclude=/home/.ecryptfs/hans/.Private' '--exclude=/sys' '--exclude=/proc' '--exclude=/tmp' '--exclude=**' '--dry-run' '--gio' '--volsize=25' '/' 'ftp://hans@192.168.1.100/backup/deja-dup' '--verbosity=9' '--gpg-options=--no-use-agent' '--archive-dir=/home/hans/.cache/deja-dup' '--log-fd=26'
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:568: duplicity (1957) exited with value 0
** (deja-dup:1933): WARNING **: BackendFile.vala:452: Vorgang wird vom Backend nicht unterstützt
** (deja-dup:1933): WARNING **: BackendFile.vala:452: Vorgang wird vom Backend nicht unterstützt
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:196: Running the following duplicity (1965) command: duplicity '--exclude=/home/hans/Videos' '--exclude=/home/hans/Downloads' '--exclude=/home/hans/.local/share/Trash' '--exclude=/home/hans/.xsession-errors' '--exclude=/home/hans/.thumbnails' '--exclude=/home/hans/.Private' '--exclude=/home/hans/.gvfs' '--exclude=/home/hans/.adobe/Flash_Player/AssetCache' '--exclude=/home/hans/.cache/deja-dup' '--exclude=/home/hans/.cache' '--include=/home/hans' '--include=/home/herbert' '--exclude=/home/.ecryptfs/hans/.Private' '--exclude=/sys' '--exclude=/proc' '--exclude=/tmp' '--exclude=**' '--gio' '--volsize=25' '/' 'ftp://hans@192.168.1.100/backup/deja-dup' '--verbosity=9' '--gpg-options=--no-use-agent' '--archive-dir=/home/hans/.cache/deja-dup' '--log-fd=27'
** (deja-dup:1933): DEBUG: DuplicityInstance.vala:568: duplicity (1965) exited with value 0