ownsona-backup.service timer fires but no file lands in
/mnt/backups/.
sudo tail -100 /var/log/ownsona-backup.log mountpoint /mnt/backups # is the bucket mounted? sudo /etc/mount-s3fs # remount if not
If s3fs fails to mount, the credentials in
/etc/passwd-s3fs are wrong, the bucket name is wrong, or the
IAM user lacks
s3:GetObject/s3:PutObject/s3:ListBucket.