ceph-volume refuses to installed into /usr/sbin - we should fix its systemd unit then

Makefile

@@ -33,7 +33,8 @@ all: ceph-config
 	tar xf ceph-14.2.4.tar.gz
 	patch -Np1 -d ceph-14.2.4 < ceph-14.2.4-fix_cpu_detection.patch
 	patch -Np1 -d ceph-14.2.4 < ceph-14.2.4-fix_tests.patch
-	cd ceph-14.2.4 && ./do_cmake.sh -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_SYSCONFDIR=/etc -DCMAKE_INSTALL_LIBEXECDIR=/lib -DCMAKE_INSTALL_FULL_SBINDIR=/usr/sbin -DWITH_SPDK=OFF -DWITH_RDMA=OFF -DWITH_RADOSGW_AMQP_ENDPOINT=OFF
+	patch -Np1 -d ceph-14.2.4 < ceph-14.2.4-fix_ceph-volume_systemd_unit.patch
+	cd ceph-14.2.4 && ./do_cmake.sh -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_SYSCONFDIR=/etc -DCMAKE_INSTALL_LIBEXECDIR=/lib -DWITH_SPDK=OFF -DWITH_RDMA=OFF -DWITH_RADOSGW_AMQP_ENDPOINT=OFF
 	$(MAKE) -C ceph-14.2.4/build npm_config_cache=/build/.npm
 	hostname localhost
 	cd ceph-14.2.4 && tar xf ../ceph-object-corpus.tar.xz

ceph-14.2.4-fix_ceph-volume_systemd_unit.patch

+diff -uNr ceph-14.2.4/systemd/ceph-volume@.service ceph-14.2.4-fix_ceph-volume_systemd_unit/systemd/ceph-volume@.service
+--- ceph-14.2.4/systemd/ceph-volume@.service	2019-09-14 03:37:41.000000000 +0930
++++ ceph-14.2.4-fix_ceph-volume_systemd_unit/systemd/ceph-volume@.service	2019-11-21 09:51:28.143608923 +1030
+@@ -7,7 +7,7 @@
+ Type=oneshot
+ KillMode=none
+ Environment=CEPH_VOLUME_TIMEOUT=10000
+-ExecStart=/bin/sh -c 'timeout $CEPH_VOLUME_TIMEOUT /usr/sbin/ceph-volume-systemd %i'
++ExecStart=/bin/sh -c 'timeout $CEPH_VOLUME_TIMEOUT /usr/bin/ceph-volume-systemd %i'
+ TimeoutSec=0
+ 
+ [Install]