OS: CentOS 7.5 1804
systemctl enable rpcbind
systemctl enable nfs
/etc/exports
/mnt/FileServer *(insecure,rw,sync,no_root_squash,no_all_squash)
nfs not start at boot, and failed when start manually.
systemd[1]:Found ordering cycle on nfs-server.service/start
systemd[1]:Found dependency on mnt-FileServer.mount/start
systemd[1]:Found dependency on nfs-server.service/start
systemd[1]:Breaking ordering cycle by deleting job mnt-FileServer.mount/start
Found same issue at https://support.oracle.com/knowledge/Oracle%20Cloud/2649787_1.html
but don't have oracle support account.