diff -ruN a/systemd/ceph-osd@.service b/systemd/ceph-osd@.service
--- a/systemd/ceph-osd@.service	2018-04-23 18:18:33.000000000 +0200
+++ b/systemd/ceph-osd@.service	2018-08-05 17:23:26.348698635 +0200
@@ -10,7 +10,7 @@
 EnvironmentFile=-/etc/sysconfig/ceph
 Environment=CLUSTER=ceph
 ExecStart=/usr/bin/ceph-osd -f --cluster ${CLUSTER} --id %i --setuser ceph --setgroup ceph
-ExecStartPre=/usr/lib/ceph/ceph-osd-prestart.sh --cluster ${CLUSTER} --id %i
+ExecStartPre=/usr/libexec/ceph/ceph-osd-prestart.sh --cluster ${CLUSTER} --id %i
 ExecReload=/bin/kill -HUP $MAINPID
 ProtectHome=true
 ProtectSystem=full