Ubuntu to CentOS rsync errors with chgrp Operation not permitted (1)

When running rsync to backup from a ZFS volume on my primary Ubuntu server to a backup server running Centos I was getting non-fatal errors like this: rsync: chgrp “/DISK2_BACKUP/mnt/share4/vmshare/” failed: Operation not permitted (1) My rsync commandlines have the following format: rsync -avr –delete –progress /DISK2/vmshare/ /mnt/share4/vmshare/ The key flag in that commandline is […]