The backup attempted by the command: /usr/bin/rdiff-image-cron --no-disable-warning /etc/rdiff-image/rdiff-image.conf failed. Sorry. Hopefully, its output will give you a clue: rdiff-image-cron: another backup using /etc/rdiff-image/rdiff-image.conf is running. -- Regards, rdiff-image-cron running on excalibur.