warn of unsupported os

setup/so-functions

@@ -1002,14 +1002,6 @@ detect_os() {
 	fi
 
 	info "Found OS: $OS $OSVER"
-	if [[ $is_override ]]; then
-		unset $not_supported
-	fi
-	if [[ $not_supported ]]; then
-		info "This is not a supported OS. Exiting Setup"
-		exit 1
-	fi
-
 }
 
 download_elastic_agent_artifacts() {

setup/so-setup

@@ -64,6 +64,14 @@ done
 
 # Let's see what OS we are dealing with here
 detect_os
+if [[ $not_supported ]]; then
+	if (whiptail_unsupported_os_warning); then
+		true
+	else
+		info "User cancelled setup."
+		whiptail_cancel
+	fi
+fi
 
 # Check to see if this is the setup type of "desktop".
 is_desktop=

setup/so-whiptail

@@ -1426,6 +1426,27 @@ whiptail_ubuntu_warning() {
 	whiptail --title "$whiptail_title"  --msgbox "$message" 14 75
 
 }
+
+whiptail_unsupported_os_warning() {
+
+	[ -n "$TESTING" ] && return
+
+	read -r -d '' unsupported_os_continue <<- EOM
+	
+	WARNING: An unsupported operating system has been detected. 
+	Security Onion may not install or operate as expected. 
+
+	Would you like to continue the install?
+
+	EOM
+	whiptail --title "$whiptail_title" \
+		--yesno "$unsupported_os_continue" 14 75 --defaultno
+
+	local exitstatus=$?
+	return $exitstatus
+
+}
+
 whiptail_uppercase_warning() {
 
 	[ -n "$TESTING" ] && return