diff --git a/.rpmignore b/.rpmignore
index 51595098284..7a54310d9b5 100644
--- a/.rpmignore
+++ b/.rpmignore
@@ -6,16 +6,11 @@
 el9/daos-*tests*.rpm
 el9/daos-mofed*.rpm
 el9/daos-serialize*.rpm
-el9/ucx*.rpm
 
 leap15/daos-*tests*.rpm
 leap15/daos-mofed*.rpm
 leap15/daos-serialize*.rpm
-leap15/openucx*.rpm
-leap15/ucx*.rpm
 leap15/*protobuf-c*.rpm
 
 ubuntu20.04/daos-*.deb
 ubuntu20.04/libdaos*.deb
-ubuntu20.04/ucx*.deb
-
diff --git a/ci/provisioning/post_provision_config_common_functions.sh b/ci/provisioning/post_provision_config_common_functions.sh
index 94810968f1b..bf1151dea60 100755
--- a/ci/provisioning/post_provision_config_common_functions.sh
+++ b/ci/provisioning/post_provision_config_common_functions.sh
@@ -428,7 +428,7 @@ post_provision_config_nodes() {
             mellanox_drivers=true
             break
         fi
-    done < <(lspci -mm | grep "ConnectX")
+    done < <(lspci -mm | grep "ConnectX" || true)
 
     if "$mellanox_drivers"; then
         # Remove OPA and install MOFED
diff --git a/site_scons/components/__init__.py b/site_scons/components/__init__.py
index 93df7ab2070..51df90bf374 100644
--- a/site_scons/components/__init__.py
+++ b/site_scons/components/__init__.py
@@ -159,31 +159,30 @@ def define_mercury(reqs):
                 patch_rpath=['lib64'],
                 build_env={'CFLAGS': "-fstack-usage -fPIC"})
 
-    ucx_configure = ['./configure', '--disable-assertions', '--disable-params-check', '--enable-mt',
-                     '--without-go', '--without-java', '--prefix=$UCX_PREFIX',
-                     '--libdir=$UCX_PREFIX/lib64', '--enable-cma', '--without-cuda',
-                     '--without-gdrcopy', '--with-verbs', '--without-knem', '--without-rocm',
-                     '--without-xpmem', '--without-fuse3', '--without-ugni']
-
-    if reqs.target_type == 'debug':
-        ucx_configure.extend(['--enable-debug'])
-    else:
-        ucx_configure.extend(['--disable-debug', '--disable-logging'])
-
-    reqs.define('ucx',
-                retriever=GitRepoRetriever(),
-                libs=['ucs', 'ucp', 'uct'],
+    # UCX is no longer built from source, the distribution provided packages are used instead.
+    ucx_packages = {
+        'ucs': 'ucx-devel',
+        'ucp': 'ucx-devel',
+        'uct': 'ucx-devel',
+    }
+    if distro.linux_distribution()[0].split()[0] == 'openSUSE':
+        ucx_packages = {
+            'ucs': 'libucs-devel',
+            'ucp': 'libucp-devel',
+            'uct': 'libuct-devel',
+        }
+
+    reqs.define('ucx_ucs',
+                libs=['ucs'],
                 functions={'ucs': ['ucs_debug_disable_signal']},
+                package=ucx_packages['ucs'])
+    reqs.define('ucx_ucp',
+                libs=['ucp'],
+                package=ucx_packages['ucp'])
+    reqs.define('ucx_uct',
+                libs=['uct'],
                 headers=['uct/api/uct.h'],
-                pkgconfig='ucx',
-                commands=[['./autogen.sh'],
-                          ucx_configure,
-                          ['make'],
-                          ['make', 'install'],
-                          ['mkdir', '-p', '$UCX_PREFIX/lib64/pkgconfig'],
-                          ['cp', 'ucx.pc', '$UCX_PREFIX/lib64/pkgconfig']],
-                build_env={'CFLAGS': '-Wno-error'},
-                package='ucx-devel' if inst(reqs, 'ucx') else None)
+                package=ucx_packages['uct'])
 
     mercury_build = ['cmake',
                      '-DBUILD_SHARED_LIBS:BOOL=ON',
@@ -230,7 +229,7 @@ def define_mercury(reqs):
                           ['make', 'install']],
                 libs=['mercury'],
                 pkgconfig='mercury',
-                requires=['boost', 'ofi', 'ucx'] + libs,
+                requires=['boost', 'ofi', 'ucx_ucs', 'ucx_ucp', 'ucx_uct'] + libs,
                 out_of_src_build=True,
                 package='mercury-devel' if inst(reqs, 'mercury') else None,
                 build_env={'CFLAGS': '-fstack-usage'})
diff --git a/utils/build.config b/utils/build.config
index fd4ff8c9208..5d4ee9dc027 100644
--- a/utils/build.config
+++ b/utils/build.config
@@ -11,7 +11,6 @@ spdk=v26.01
 ofi=v1.22.0
 mercury=v2.4.1
 protobufc=v1.3.3
-ucx=v1.20.0
 
 [repos]
 argobots=https://github.com/pmodels/argobots.git
@@ -23,7 +22,6 @@ spdk=https://github.com/spdk/spdk.git
 ofi=https://github.com/ofiwg/libfabric.git
 mercury=https://github.com/mercury-hpc/mercury.git
 protobufc=https://github.com/protobuf-c/protobuf-c.git
-ucx=https://github.com/openucx/ucx.git
 
 [patch_versions]
 spdk=0001_external_isal_v26.01.patch
diff --git a/utils/scripts/install-el9.sh b/utils/scripts/install-el9.sh
index 559948de712..bff04dd423d 100755
--- a/utils/scripts/install-el9.sh
+++ b/utils/scripts/install-el9.sh
@@ -69,6 +69,7 @@ dnf --nodocs install ${dnf_install_args} \
     python${PYTHON_VERSION}-pip \
     rpm-build \
     sudo \
+    ucx-devel \
     valgrind-devel \
     which \
     ncurses-devel \
diff --git a/utils/scripts/install-leap15.sh b/utils/scripts/install-leap15.sh
index 68091f27f57..0a2cd2222f2 100755
--- a/utils/scripts/install-leap15.sh
+++ b/utils/scripts/install-leap15.sh
@@ -51,6 +51,9 @@ dnf --nodocs install ${dnf_install_args} \
     libopenssl-devel \
     libprotobuf-c-devel \
     libtool \
+    libucp-devel \
+    libucs-devel \
+    libuct-devel \
     libunwind-devel \
     libuuid-devel \
     libyaml-devel \
diff --git a/utils/scripts/install-ubuntu.sh b/utils/scripts/install-ubuntu.sh
index 3191faacc37..ceed40ccc86 100755
--- a/utils/scripts/install-ubuntu.sh
+++ b/utils/scripts/install-ubuntu.sh
@@ -53,6 +53,7 @@ apt-get install ${apt_get_install_args} \
     librdmacm-dev \
     libssl-dev \
     libtool-bin \
+    libucx-dev \
     libunwind-dev \
     libyaml-dev \
     locales \
diff --git a/utils/test_memcheck.supp b/utils/test_memcheck.supp
index c8147f0adcb..2f83a412f34 100644
--- a/utils/test_memcheck.supp
+++ b/utils/test_memcheck.supp
@@ -334,14 +334,6 @@
    fun:ompi_mpi_init
    ...
 }
-{
-   uninitialized value in MPI_init
-   Memcheck:Value8
-   ...
-   ...
-   fun:ompi_mpi_init
-   ...
-}
 {
    Leak in start thread, mpi
    Memcheck:Leak