diff --git a/eng/native/init-distro-rid.sh b/eng/native/init-distro-rid.sh
index eea8eca2d26d14..5f6b194600124a 100644
--- a/eng/native/init-distro-rid.sh
+++ b/eng/native/init-distro-rid.sh
@@ -41,7 +41,7 @@ initNonPortableDistroRid()
             # We have forced __PortableBuild=0. This is because -portablebuld
             # has been passed as false.
             if (( isPortable == 0 )); then
-                if [ "${ID}" = "rhel" || "${ID}" = "rocky" ]; then
+                if [ "${ID}" = "rhel" ] || [ "${ID}" = "rocky" ]; then
                     # remove the last version digit
                     VERSION_ID="${VERSION_ID%.*}"
                 fi
diff --git a/eng/pipelines/common/platform-matrix.yml b/eng/pipelines/common/platform-matrix.yml
index efa204878083a7..25a8ac7b913b74 100644
--- a/eng/pipelines/common/platform-matrix.yml
+++ b/eng/pipelines/common/platform-matrix.yml
@@ -654,6 +654,33 @@ jobs:
         helixQueueGroup: ${{ parameters.helixQueueGroup }}
         ${{ insert }}: ${{ parameters.jobParameters }}
 
+# Tizen armel
+
+- ${{ if containsValue(parameters.platforms, 'Tizen_armel') }}:
+  - template: xplat-setup.yml
+    parameters:
+      jobTemplate: ${{ parameters.jobTemplate }}
+      helixQueuesTemplate: ${{ parameters.helixQueuesTemplate }}
+      variables: ${{ parameters.variables }}
+      osGroup: Tizen
+      archType: armel
+      targetRid: tizen-armel
+      platform: Tizen_armel
+      container:
+        image: ubuntu-18.04-cross-armel-tizen-20210719212651-8b02f56
+        registry: mcr
+      jobParameters:
+        runtimeFlavor: ${{ parameters.runtimeFlavor }}
+        stagedBuild: ${{ parameters.stagedBuild }}
+        buildConfig: ${{ parameters.buildConfig }}
+        ${{ if eq(parameters.passPlatforms, true) }}:
+          platforms: ${{ parameters.platforms }}
+        helixQueueGroup: ${{ parameters.helixQueueGroup }}
+        crossBuild: true
+        crossrootfsDir: '/crossrootfs/armel'
+        disableClrTest: true
+        ${{ insert }}: ${{ parameters.jobParameters }}
+
 # Windows x64
 
 - ${{ if or(containsValue(parameters.platforms, 'windows_x64'), in(parameters.platformGroup, 'all', 'gcstress')) }}:
diff --git a/eng/pipelines/common/xplat-setup.yml b/eng/pipelines/common/xplat-setup.yml
index 586a474175895c..85a96ae5fce853 100644
--- a/eng/pipelines/common/xplat-setup.yml
+++ b/eng/pipelines/common/xplat-setup.yml
@@ -114,12 +114,12 @@ jobs:
     ${{ if eq(parameters.jobParameters.pool, '') }}:
       pool:
         # Public Linux Build Pool
-        ${{ if and(or(in(parameters.osGroup, 'Linux', 'FreeBSD', 'Android'), eq(parameters.hostedOs, 'Linux')), eq(variables['System.TeamProject'], 'public')) }}:
+        ${{ if and(or(in(parameters.osGroup, 'Linux', 'FreeBSD', 'Android', 'Tizen'), eq(parameters.hostedOs, 'Linux')), eq(variables['System.TeamProject'], 'public')) }}:
           name:  NetCore1ESPool-Public
           demands: ImageOverride -equals Build.Ubuntu.1804.Amd64.Open
 
         # Official Build Linux Pool
-        ${{ if and(or(in(parameters.osGroup, 'Linux', 'FreeBSD', 'Browser', 'Android'), eq(parameters.hostedOs, 'Linux')), ne(variables['System.TeamProject'], 'public')) }}:
+        ${{ if and(or(in(parameters.osGroup, 'Linux', 'FreeBSD', 'Browser', 'Android', 'Tizen'), eq(parameters.hostedOs, 'Linux')), ne(variables['System.TeamProject'], 'public')) }}:
           name: NetCore1ESPool-Internal
           demands: ImageOverride -equals Build.Ubuntu.1804.Amd64
 
diff --git a/eng/pipelines/coreclr/templates/build-job.yml b/eng/pipelines/coreclr/templates/build-job.yml
index e94d630ba2e957..c5efb8c77bdd22 100644
--- a/eng/pipelines/coreclr/templates/build-job.yml
+++ b/eng/pipelines/coreclr/templates/build-job.yml
@@ -9,6 +9,7 @@ parameters:
   crossBuild: false
   crossrootfsDir: ''
   dependOnEvaluatePaths: false
+  disableClrTest: false
   isOfficialBuild: false
   osGroup: ''
   osSubgroup: ''
@@ -38,6 +39,7 @@ jobs:
     pool: ${{ parameters.pool }}
     condition: ${{ parameters.condition }}
     dependOnEvaluatePaths: ${{ parameters.dependOnEvaluatePaths }}
+    disableClrTest: ${{ parameters.disableClrTest }}
     pgoType: ${{ parameters.pgoType }}
 
     # Compute job name from template parameters
@@ -141,6 +143,12 @@ jobs:
     - name: SignType
       value: $[ coalesce(variables.OfficialSignType, 'real') ]
 
+    - name: clrRuntimePortableBuildArg
+      value: ''
+    - ${{ if eq(parameters.archType, 'armel' )}}:
+      - name: clrRuntimePortableBuildArg
+        value: '-portablebuild=false'
+
     - ${{ parameters.variables }}
 
     steps:
@@ -188,7 +196,7 @@ jobs:
 
     # Build CoreCLR Runtime
     - ${{ if ne(parameters.osGroup, 'windows') }}:
-      - script: $(Build.SourcesDirectory)/src/coreclr/build-runtime$(scriptExt) $(buildConfig) $(archType) $(crossArg) $(osArg) -ci $(compilerArg) $(clrBuildPALTestsBuildArg) $(pgoInstrumentArg) $(officialBuildIdArg) $(clrInterpreterBuildArg)
+      - script: $(Build.SourcesDirectory)/src/coreclr/build-runtime$(scriptExt) $(buildConfig) $(archType) $(crossArg) $(osArg) -ci $(compilerArg) $(clrBuildPALTestsBuildArg) $(pgoInstrumentArg) $(officialBuildIdArg) $(clrInterpreterBuildArg) $(clrRuntimePortableBuildArg)
         displayName: Build CoreCLR Runtime
     - ${{ if eq(parameters.osGroup, 'windows') }}:
       - script: set __TestIntermediateDir=int&&$(Build.SourcesDirectory)/src/coreclr/build-runtime$(scriptExt) $(buildConfig) $(archType) -ci $(enforcePgoArg) $(pgoInstrumentArg) $(officialBuildIdArg) $(clrInterpreterBuildArg)
@@ -210,7 +218,7 @@ jobs:
         displayName: Run CoreCLR Tools unit tests
 
     # Build native test components
-    - ${{ if ne(parameters.isOfficialBuild, true) }}:
+    - ${{ if and(ne(parameters.isOfficialBuild, true), ne(parameters.disableClrTest, true)) }}:
       - script: $(Build.SourcesDirectory)/src/tests/build$(scriptExt) skipmanaged skipgeneratelayout $(buildConfig) $(archType) $(crossArg) $(osArg) $(priorityArg) $(compilerArg)
         displayName: Build native test components
 
@@ -257,7 +265,7 @@ jobs:
         condition: always()
 
     # Builds using gcc are not tested, and clrTools unitests do not publish the build artifacts
-    - ${{ if and(ne(parameters.compilerName, 'gcc'), ne(parameters.testGroup, 'clrTools')) }}:
+    - ${{ if and(ne(parameters.compilerName, 'gcc'), ne(parameters.testGroup, 'clrTools'), ne(parameters.disableClrTest, true)) }}:
       # Publish product output directory for consumption by tests.
       - template: /eng/pipelines/common/upload-artifact-step.yml
         parameters:
@@ -276,7 +284,7 @@ jobs:
           osGroup: ${{ parameters.osGroup }}
           osSubgroup: ${{ parameters.osSubgroup }}
 
-    - ${{ if and(ne(parameters.compilerName, 'gcc'), ne(parameters.testGroup, ''), ne(parameters.testGroup, 'clrTools')) }}:
+    - ${{ if and(ne(parameters.compilerName, 'gcc'), ne(parameters.testGroup, ''), ne(parameters.testGroup, 'clrTools'), ne(parameters.disableClrTest, true)) }}:
       # Publish test native components for consumption by test execution.
       - ${{ if and(ne(parameters.isOfficialBuild, true), eq(parameters.pgoType, '')) }}:
         - template: /eng/pipelines/common/upload-artifact-step.yml
diff --git a/eng/pipelines/runtime.yml b/eng/pipelines/runtime.yml
index ddeca884f3229a..b18a7ae71393b3 100644
--- a/eng/pipelines/runtime.yml
+++ b/eng/pipelines/runtime.yml
@@ -79,6 +79,7 @@ jobs:
     - Linux_musl_arm64
     - Linux_musl_x64
     - OSX_arm64
+    - Tizen_armel
     - windows_x86
     - windows_x64
     - windows_arm