diff --git a/README.md b/README.md
index 256f4c3..3bfff32 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ can be found in the following places:
 E.g. build a src.rpm with:
     $ rpmbuild -bs \
                --define "_sourcedir $PWD/SOURCES" --define "_srcrpmdir $PWD" \
-               --define "dist .el8" SPECS/ceph.spec
+               --define "dist .el9s" SPECS/ceph.spec
 
 Get the lookaside uploader script from ssh://git@git.centos.org/centos-git-common.git
 
@@ -40,9 +40,9 @@ e9c6a6a482b8e46117c2a6c37b50c569bd62d92e  SOURCES/ceph-16.5.tar.gz
 commit 29f19456be12986e86392652331e3a56ff0a88a0
 
 5. build
-    $ cbs build storage8-ceph-pacific-el8 git+https://git.centos.org/rpms/ceph.git#29f19456be12986e86392652331e3a56ff0a88a0
+    $ cbs build storage9s-ceph-pacific-el9s git+https://git.centos.org/rpms/ceph.git#29f19456be12986e86392652331e3a56ff0a88a0
 
 
 
-    $ cbs build [--scratch] storage8-ceph-pacific-el8 ceph-16.2.5-1.el8.src.rpm
+    $ cbs build [--scratch] storage9s-ceph-pacific-el9s ceph-16.2.5-1.el9s.src.rpm
 
diff --git a/SOURCES/0013-src-common-Formatter.cc.patch b/SOURCES/0013-src-common-Formatter.cc.patch
new file mode 100644
index 0000000..c31fc1a
--- /dev/null
+++ b/SOURCES/0013-src-common-Formatter.cc.patch
@@ -0,0 +1,10 @@
+--- ceph-16.2.4/src/common/Formatter.cc.orig	2021-07-07 09:32:25.513818420 -0400
++++ ceph-16.2.4/src/common/Formatter.cc	2021-07-07 09:44:42.007373294 -0400
+@@ -21,6 +21,7 @@
+ #include <fmt/format.h>
+ #include <set>
+ #include <limits>
++#include <algorithm>
+ 
+ // -----------------------
+ namespace ceph {
diff --git a/SPECS/ceph.spec b/SPECS/ceph.spec
index 42a2a15..15137d4 100644
--- a/SPECS/ceph.spec
+++ b/SPECS/ceph.spec
@@ -22,7 +22,6 @@
 #################################################################################
 %global _hardened_build 1
 
-%bcond_with cephadm
 %bcond_with make_check
 %bcond_with zbd
 %bcond_with cmake_verbose_logging
@@ -34,7 +33,7 @@
 %endif
 %if 0%{?fedora} || 0%{?rhel}
 %bcond_without selinux
-%ifarch x86_64
+%ifarch x86_64 ppc64le
 %bcond_without rbd_rwl_cache
 %bcond_without rbd_ssd_cache
 %global _system_pmdk 1
@@ -127,7 +126,7 @@
 #################################################################################
 Name:		ceph
 Version:	16.2.5
-Release:	2%{?dist}
+Release:	1%{?dist}
 %if 0%{?fedora} || 0%{?rhel}
 Epoch:		2
 %endif
@@ -151,7 +150,8 @@ Patch0006:	0006-src-blk-CMakeLists.txt.patch
 Patch0007:	0007-src-test-neorados-CMakeLists.txt.patch
 Patch0008:	0008-cmake-modules-Finduring.cmake.patch
 Patch0009:	0009-librgw-notifications-initialize-kafka-and-amqp.patch
-Source1:	cmake-modules-BuildBoost.cmake.noautopatch
+Patch0013:	0013-src-common-Formatter.cc.patch
+# Source1:	cmake-modules-BuildBoost.cmake.noautopatch
 # ceph 14.0.1 does not support 32-bit architectures, bugs #1727788, #1727787
 ExcludeArch:	i686 armv7hl
 %if 0%{?suse_version}
@@ -178,14 +178,11 @@ BuildRequires:	gperf
 BuildRequires:	cmake > 3.5
 BuildRequires:	cryptsetup
 BuildRequires:	fuse3-devel
-# BuildRequires:  gcc-toolset-9-gcc-c++
-# BuildRequires:  gcc-toolset-9-annobin
-# BuildRequires:  gcc-toolset-9-libstdc++-devel
-# %%if 0%%{with seastar}
-# BuildRequires:	gcc-toolset-9-gcc-c++ >= 9.2.1-2.3
-# %%else
+%if 0%{with seastar}
+BuildRequires:	gcc-toolset-9-gcc-c++ >= 9.2.1-2.3
+%else
 BuildRequires:	gcc-c++
-# %%endif
+%endif
 BuildRequires:	gdbm
 %if 0%{with tcmalloc}
 # libprofiler did not build on ppc64le until 2.7.90
@@ -210,7 +207,7 @@ BuildRequires:	fmt-devel >= 5.2.1
 BuildRequires:	rocksdb-devel
 Requires:	rocksdb
 %endif
-BuildRequires:	liburing-devel
+# BuildRequires:	liburing-devel
 BuildRequires:	pkgconfig(libudev)
 BuildRequires:	libnl3-devel
 BuildRequires:	liboath-devel
@@ -288,19 +285,17 @@ BuildRequires:	protobuf-devel
 BuildRequires:	ragel
 BuildRequires:	systemtap-sdt-devel
 BuildRequires:	yaml-cpp-devel
+%if 0%{?fedora}
+BuildRequires:  libubsan
+BuildRequires:  libasan
+BuildRequires:  libatomic
+%endif
+%if 0%{?rhel}
+BuildRequires:  gcc-toolset-9-annobin
 BuildRequires:  gcc-toolset-9-libubsan-devel
 BuildRequires:  gcc-toolset-9-libasan-devel
 BuildRequires:  gcc-toolset-9-libatomic-devel
-# %%if 0%%{?fedora}
-# BuildRequires:  libubsan
-# BuildRequires:  libasan
-# BuildRequires:  libatomic
-# %%endif
-# %%if 0%%{?rhel}
-# BuildRequires:  gcc-toolset-9-libubsan-devel
-# BuildRequires:  gcc-toolset-9-libasan-devel
-# BuildRequires:  gcc-toolset-9-libatomic-devel
-# %%endif
+%endif
 %endif
 #################################################################################
 # distro-conditional dependencies
@@ -465,7 +460,6 @@ Recommends:	chrony
 %description base
 Base is the package that includes all the files shared amongst ceph servers
 
-%if 0%{with cephadm}
 %package -n cephadm
 Summary:	Utility to bootstrap Ceph clusters
 BuildArch:	noarch
@@ -477,7 +471,6 @@ Recommends:	podman >= 2.0.2
 %description -n cephadm
 Utility to bootstrap a Ceph cluster and manage Ceph daemons deployed
 with systemd and podman.
-%endif
 
 %package -n ceph-common
 Summary:	Ceph Common
@@ -677,7 +670,7 @@ Group:		System/Filesystems
 %endif
 Requires:	ceph-mgr = %{_epoch_prefix}%{version}-%{release}
 Requires:	python%{python3_pkgversion}-remoto
-Requires:	cephadm >= %{_epoch_prefix}16.1.0-0
+Requires:	cephadm = %{_epoch_prefix}%{version}-%{release}
 %if 0%{?suse_version}
 Requires:	openssh
 Requires:	python%{python3_pkgversion}-Jinja2
@@ -1134,8 +1127,6 @@ Requires:	ceph-common = %{_epoch_prefix}%{version}-%{release}
 Requires:	xmlstarlet
 Requires:	jq
 Requires:	socat
-Requires:	gtest-devel
-Requires:	gmock-devel
 BuildRequires:	gtest-devel
 BuildRequires:	gmock-devel
 %description -n ceph-test
@@ -1237,19 +1228,18 @@ This package provides Ceph default alerts for Prometheus.
 #################################################################################
 %prep
 %autosetup -p1
-%ifarch x86_64
-patch -p1 < %{SOURCE1}
-%endif
+# %%ifarch x86_64
+# patch -p1 < %{SOURCE1}
+# %%endif
 
 %build
 # LTO can be enabled as soon as the following GCC bug is fixed:
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48200
 %define _lto_cflags %{nil}
 
-# . /opt/rh/gcc-toolset-9/enable
-# %%if 0%%{with seastar} && 0%%{?rhel}
-# . /opt/rh/gcc-toolset-9/enable
-# %%endif
+%if 0%{with seastar} && 0%{?rhel}
+. /opt/rh/gcc-toolset-9/enable
+%endif
 
 %if 0%{with cephfs_java}
 # Find jni.h
@@ -1344,7 +1334,7 @@ cd build
     -DWITH_SYSTEM_ROCKSDB=ON \
 %endif
     -DWITH_SYSTEM_LIBURING=OFF \
-    -DWITH_SYSTEM_BOOST=OFF \
+    -DWITH_SYSTEM_BOOST=ON \
 %if 0%{with cephfs_shell}
     -DWITH_CEPHFS_SHELL=ON \
 %endif
@@ -1394,7 +1384,8 @@ cat ./CMakeFiles/CMakeError.log
 
 export VERBOSE=1
 export V=1
-make  "$CEPH_MFLAGS_JOBS"
+export GCC_COLORS=
+%cmake_build 
 
 
 %if 0%{with make_check}
@@ -1407,7 +1398,7 @@ make  "$CEPH_MFLAGS_JOBS"
 
 %install
 pushd build
-make DESTDIR=%{buildroot} install
+%cmake_install
 # we have dropped sysvinit bits
 rm -f %{buildroot}/%{_sysconfdir}/init.d/ceph
 popd
@@ -1432,7 +1423,6 @@ install -m 0644 -D COPYING %{buildroot}%{_docdir}/ceph/COPYING
 install -m 0644 -D etc/sysctl/90-ceph-osd.conf %{buildroot}%{_sysctldir}/90-ceph-osd.conf
 install -m 0755 -D src/tools/rbd_nbd/rbd-nbd_quiesce %{buildroot}%{_libexecdir}/rbd-nbd/rbd-nbd_quiesce
 
-%if 0%{with cephadm}
 install -m 0755 src/cephadm/cephadm %{buildroot}%{_sbindir}/cephadm
 mkdir -p %{buildroot}%{_sharedstatedir}/cephadm
 chmod 0700 %{buildroot}%{_sharedstatedir}/cephadm
@@ -1440,7 +1430,6 @@ mkdir -p %{buildroot}%{_sharedstatedir}/cephadm/.ssh
 chmod 0700 %{buildroot}%{_sharedstatedir}/cephadm/.ssh
 touch %{buildroot}%{_sharedstatedir}/cephadm/.ssh/authorized_keys
 chmod 0600 %{buildroot}%{_sharedstatedir}/cephadm/.ssh/authorized_keys
-%endif
 
 # firewall templates and /sbin/mount.ceph symlink
 %if 0%{?suse_version} && !0%{?usrmerged}
@@ -1492,10 +1481,6 @@ install -m 644 -D monitoring/prometheus/alerts/ceph_default_alerts.yml %{buildro
 %py_byte_compile %{__python3} %{buildroot}%{python3_sitelib}
 %endif
 
-%if 0%{without cephadm}
-rm -f %{buildroot}%{_mandir}/man8/cephadm.8*
-%endif
-
 #################################################################################
 # files and systemd scriptlets
 #################################################################################
@@ -1582,7 +1567,6 @@ fi
 /sbin/ldconfig
 %systemd_postun ceph.target
 
-%if 0%{with cephadm}
 %pre -n cephadm
 getent group cephadm >/dev/null || groupadd -r cephadm
 getent passwd cephadm >/dev/null || useradd -r -g cephadm -s /bin/bash -c "cephadm user for mgr/cephadm" -d %{_sharedstatedir}/cephadm cephadm
@@ -1600,7 +1584,6 @@ exit 0
 %attr(0700,cephadm,cephadm) %dir %{_sharedstatedir}/cephadm
 %attr(0700,cephadm,cephadm) %dir %{_sharedstatedir}/cephadm/.ssh
 %attr(0600,cephadm,cephadm) %{_sharedstatedir}/cephadm/.ssh/authorized_keys
-%endif
 
 %files common
 %dir %{_docdir}/ceph
@@ -2046,8 +2029,9 @@ fi
 %endif
 
 %postun immutable-object-cache
+test -n "$FIRST_ARG" || FIRST_ARG=$1
 %systemd_postun ceph-immutable-object-cache@\*.service ceph-immutable-object-cache.target
-if [ $1 -ge 1 ] ; then
+if [ $FIRST_ARG -ge 1 ] ; then
   # Restart on upgrade, but only if "CEPH_AUTO_RESTART_ON_UPGRADE" is set to
   # "yes". In any case: if units are not running, do not touch them.
   SYSCONF_CEPH=%{_sysconfdir}/sysconfig/ceph
@@ -2516,21 +2500,9 @@ exit 0
 %config %{_sysconfdir}/prometheus/ceph/ceph_default_alerts.yml
 
 %changelog
-* Thu Jul 22 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.5-2
-- https://tracker.ceph.com/issues/51797
-
-* Thu Jul 8 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.5-1
-- 16.2.5 GA
-
-* Thu Jul 1 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.4-2
-- 16.2.4 build from lookaside
-
 * Thu May 13 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.4-1
 - 16.2.4 GA
 
-* Thu May 13 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.3-2
-- 16.2.3, w/ unbundled cephadm, for OSP CI.
-
 * Thu May 6 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.3-1
 - 16.2.3 GA
 
@@ -2540,30 +2512,46 @@ exit 0
 * Tue Apr 20 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.1-1
 - 16.2.1 GA
 
-* Thu Apr 15 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.0-5
-- 16.2.0, python3-{remoto,routes,kubernetes}, Requires:{gmock,gtest}-devel
-
-* Wed Apr 14 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.0-4
-- 16.2.0, python3-{cherrypy,bcrypt,pecan}
-
-* Tue Apr 13 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.0-3
-- 16.2.0, rgw fix
-
-* Thu Apr 1 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.0-2
-- 16.2.0, cephadm
+* Sat Apr 10 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.0-2
+- 16.2.0, libamqp_mock fix (FTBFS, #1947281), rgw fix
 
 * Wed Mar 31 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.2.0-1
 - 16.2.0 GA
 
-* Sat Mar 27 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-2
-- 16.1.0 RC, misc python3-* -> python-*
+* Tue Mar 30 2021 Jonathan Wakely <jwakely@redhat.com> - 2:16.1.0-2
+- Rebuilt for removed libstdc++ symbol (#1937698)
 
 * Thu Mar 25 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-1
 - 16.1.0 RC
 
-* Tue Mar 23 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.1.snapshot
+* Tue Mar 23 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.8.snapshot
 - 16.1.0 RC (ceph-16.1.0-944-ge53ee8bd plus fix trailing slash bluestore)
 
+* Sat Mar 20 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.7.snapshot
+- 16.1.0 RC (ceph-16.1.0-944-ge53ee8bd)
+
+* Fri Mar 19 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.6.snapshot
+- 16.1.0 RC (ceph-16.1.0-308-gabe639eb)
+
+* Fri Mar 5 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.5.snapshot
+- ceph 16.1.0 RC (ceph-16.1.0-308-gabe639eb)
+-  rpmbuild apparently unable to automatically derive 'Requires: rocksdb' from 'BuildRequires: rocksdb-devel' for librocksdb.so.6.13
+
+* Sat Feb 20 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.4.snapshot
+- ceph 16.1.0 RC (ceph-16.1.0-308-gabe639eb)
+
+* Thu Feb 4 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.3.snapshot
+- rocksdb not available in el8+, use bundled rocksdb
+
+* Mon Feb 1 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.2.snapshot
+- libblk.so -> libblk.a
+- libneoradostest-support.so -> libneoradostest-support.a
+- w/ liburing-devel, -DWITH_SYSTEM_LIBURING=ON
+- w/ rocksdb-devel, -DWITH_SYSTEM_ROCKSDB=ON
+
+* Fri Jan 29 2021 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:16.1.0-0.1.snapshot
+- ceph 16.1.0 RC (ceph-16.1.0-43-g6b74fb5c)
+
 * Wed Sep 16 2020 Kaleb S. KEITHLEY <kkeithle[at]redhat.com> - 2:15.2.5-1
 - ceph 15.2.5 GA