diff --git a/SPECS/subscription-manager.spec b/SPECS/subscription-manager.spec
index 2da5c3e..396bda0 100644
--- a/SPECS/subscription-manager.spec
+++ b/SPECS/subscription-manager.spec
@@ -253,6 +253,9 @@ Source2: subscription-manager-rpmlintrc
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 %endif
 
+Patch100: CENTOS-use-centos-syspurposes.patch
+Patch101: subscription-manager-centos-remove-redhat.repo.patch
+
 # The following macro examples are preceeded by '%' to stop macro expansion
 # in the comments. (See https://bugzilla.redhat.com/show_bug.cgi?id=1224660 for
 # why this is necessary)
@@ -558,9 +561,11 @@ Group: System Environment/Base
 Requires: rhsm-gtk = %{version}-%{release}
 Requires: initial-setup-gui >= 0.3.9.24-1
 Obsoletes: subscription-manager-firstboot < 1.15.3-1
+%if %{undefined centos}
 %if (0%{?rhel} >= 8)
 Supplements: initial-setup-gui
 %endif
+%endif
 
 %description -n subscription-manager-initial-setup-addon
 This package contains the initial-setup screens for subscription-manager.
@@ -713,6 +718,8 @@ subscription-manager-initial-setup-addon, and subscription-manager-cockpit-plugi
 
 %prep
 %setup -q
+%patch100 -p1
+%patch101 -p1
 
 %build
 make -f Makefile VERSION=%{version}-%{release} CFLAGS="%{optflags}" \
@@ -790,7 +797,9 @@ sed -i 's/libexec/lib/g' %{buildroot}/%{_sysconfdir}/cron.daily/rhsmd
 # fake out the redhat.repo file
 %if %{use_yum} || %{use_dnf}
     mkdir %{buildroot}%{_sysconfdir}/yum.repos.d
+    %if %{undefined centos}
     touch %{buildroot}%{_sysconfdir}/yum.repos.d/redhat.repo
+    %endif
 %endif
 
 # fake out the certificate directories
@@ -800,13 +809,19 @@ mkdir -p %{buildroot}%{_sysconfdir}/pki/entitlement
 %if %{use_container_plugin}
 # Setup cert directories for the container plugin:
 mkdir -p %{buildroot}%{_sysconfdir}/docker/certs.d/
+%if %{undefined centos}
 mkdir %{buildroot}%{_sysconfdir}/docker/certs.d/cdn.redhat.com
 install -m 644 %{_builddir}/%{buildsubdir}/etc-conf/redhat-entitlement-authority.pem %{buildroot}%{_sysconfdir}/docker/certs.d/cdn.redhat.com/redhat-entitlement-authority.crt
 %endif
+%endif
 
+%if %{undefined centos}
 mkdir -p %{buildroot}%{_sysconfdir}/etc/rhsm/ca
 install -m 644 %{_builddir}/%{buildsubdir}/etc-conf/redhat-entitlement-authority.pem %{buildroot}/%{_sysconfdir}/rhsm/ca/redhat-entitlement-authority.pem
 install -m 644 %{_builddir}/%{buildsubdir}/etc-conf/redhat-uep.pem %{buildroot}/%{_sysconfdir}/rhsm/ca/redhat-uep.pem
+%else
+rm %{buildroot}/%{_sysconfdir}/rhsm/ca/redhat-entitlement-authority.pem
+%endif
 
 %if %use_cockpit
     # install cockpit dist targz
@@ -832,6 +847,10 @@ find %{buildroot} -name \*.py* -exec touch -r %{SOURCE0} '{}' \;
     %endif
 %endif
 
+%if %{defined centos}
+sed -e '/^enabled=/ s/1/0/' -i %{buildroot}%{_sysconfdir}/dnf/plugins/subscription-manager.conf
+%endif
+
 # base/cli tools use the gettext domain 'rhsm', while the
 # gnome-help tools use domain 'subscription-manager'
 %files -f rhsm.lang
@@ -1202,10 +1221,12 @@ find %{buildroot} -name \*.py* -exec touch -r %{SOURCE0} '{}' \;
 %{python_sitearch}/subscription_manager/plugin/container/*.py*
 %{python_sitearch}/subscription_manager/plugin/container/__pycache__
 
+%if %{undefined centos}
 # Copying Red Hat CA cert into each directory:
 %attr(755,root,root) %dir %{_sysconfdir}/docker/certs.d/cdn.redhat.com
 %attr(644,root,root) %{_sysconfdir}/docker/certs.d/cdn.redhat.com/redhat-entitlement-authority.crt
 %endif
+%endif
 
 %if %has_ostree
 %files -n subscription-manager-plugin-ostree
@@ -1260,8 +1281,10 @@ find %{buildroot} -name \*.py* -exec touch -r %{SOURCE0} '{}' \;
 %attr(755,root,root) %dir %{_sysconfdir}/rhsm
 %attr(755,root,root) %dir %{_sysconfdir}/rhsm/ca
 
+%if %{undefined centos}
 %attr(644,root,root) %{_sysconfdir}/rhsm/ca/redhat-entitlement-authority.pem
 %attr(644,root,root) %{_sysconfdir}/rhsm/ca/redhat-uep.pem
+%endif
 
 %if %use_cockpit
 %files -n subscription-manager-cockpit