diff --git a/cd.sh b/cd.sh
index 8348ba5..81e4e8f 100644
--- a/cd.sh
+++ b/cd.sh
@@ -46,22 +46,27 @@ cd_set_environment_variables () {
     # operating system
     CD_OS_ID="$(cd_grep_os ID)"
     case "${CD_OS_ID}" in
-        "almalinux")
-            CD_OS_ID="${CD_OS_ALMA}"
+        "almalinux") CD_OS_ID="${CD_OS_ALMA}" ;;
+        "alpine") CD_OS_ID="${CD_OS_ALPINE}" ;;
+        "debian") CD_OS_ID="${CD_OS_DEBIAN}" ;;
+        "rocky") CD_OS_ID="${CD_OS_ROCKY}" ;;
+        "ubuntu") CD_OS_ID="${CD_OS_UBUNTU}" ;;
+        *) cd_error_os "CD_OS_ID" ;;
+    esac
+    case "${CD_OS_ID}" in
+        "${CD_OS_DEBIAN}"|"${CD_OS_UBUNTU}")
+            CD_OS_VERSION="$(cd_grep_os VERSION_CODENAME)"
+        ;;
+        "${CD_OS_ALMA}"|"${CD_OS_ROCKY}")
             CD_OS_VERSION=$(cd_grep_os VERSION_ID \
                 | sed "s|^\([0-9]\+\)\..*|\1|")
         ;;
-        "alpine")
-            CD_OS_ID="${CD_OS_ALPINE}"
+        "${CD_OS_ALPINE}")
             CD_OS_VERSION=$(cd_grep_os VERSION_ID \
                 | sed "s|^\([0-9]\+\.[0-9]\+\)\..*|\1|")
         ;;
-        "debian")
-            CD_OS_ID="${CD_OS_DEBIAN}"
-            CD_OS_VERSION="$(cd_grep_os VERSION_CODENAME)"
-        ;;
-        *) cd_error_os "CD_OS_ID" ;;
     esac
+    cd_echo "CD_OS_ID" "CD_OS_VERSION"
     # universal
     CD_DNS_FILE="/etc/resolv.conf"
     CD_PKG_CA="ca-certificates"
@@ -182,7 +187,6 @@ Dir::Etc::SourceParts \"\";
     CD_PROJECTS_URL="${CD_SERVER_URL}/${CD_PROJECTS_GROUP}"
     CD_PROJECT_URL="${CD_PROJECTS_URL}/${CD_PROJECT_NAME}"
     #
-    cd_echo "CD_OS_ID" "CD_OS_VERSION"
     cd_split
     cd_echo "CD_DNS_FILE" "CD_PKG_CA" "CD_PKG_GIT"
     cd_split