diff --git a/images/linux/scripts/installers/ansible.sh b/images/linux/scripts/installers/ansible.sh
index b4a82a703..fcf039308 100644
--- a/images/linux/scripts/installers/ansible.sh
+++ b/images/linux/scripts/installers/ansible.sh
@@ -8,10 +8,8 @@
 source $HELPER_SCRIPTS/document.sh
 source $HELPER_SCRIPTS/os.sh
 
-imageLabel=$(getOSVersionLabel)
-
 # ppa:ansible/ansible doesn't contain packages for Ubuntu20.04
-if [ $imageLabel != "focal" ]; then
+if isUbuntu16 || isUbuntu18 ; then
     add-apt-repository ppa:ansible/ansible
     apt-get update
 fi
diff --git a/images/linux/scripts/installers/dotnetcore-sdk.sh b/images/linux/scripts/installers/dotnetcore-sdk.sh
index 68f07c4f7..e3762e1c5 100644
--- a/images/linux/scripts/installers/dotnetcore-sdk.sh
+++ b/images/linux/scripts/installers/dotnetcore-sdk.sh
@@ -8,15 +8,13 @@ source $HELPER_SCRIPTS/apt.sh
 source $HELPER_SCRIPTS/document.sh
 source $HELPER_SCRIPTS/os.sh
 
-imageLabel=$(getOSVersionLabel)
-
 # Ubuntu 20 doesn't support EOL versions
-if [ $imageLabel != "focal" ]; then
-    LATEST_DOTNET_PACKAGES=("dotnet-sdk-3.0" "dotnet-sdk-3.1")
-    release_urls=("https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.1/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.2/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.0/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.1/releases.json")
-else
+if isUbuntu20 ; then
     LATEST_DOTNET_PACKAGES=("dotnet-sdk-3.1")
     release_urls=("https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.1/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.1/releases.json")
+else
+    LATEST_DOTNET_PACKAGES=("dotnet-sdk-3.0" "dotnet-sdk-3.1")
+    release_urls=("https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.1/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.2/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.0/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.1/releases.json")
 fi
 
 mksamples()