chore(NODE-1515): add more logging for check-network.sh (#2302)

<img width="1688" alt="image"
src="https://github.com/user-attachments/assets/202f660b-daf2-44fa-aae2-3c0fe36a5f61">

Author: andrewbattat

ic-os/components/setupos-scripts/check-network.sh

@@ -33,18 +33,32 @@ function eval_command_with_retries() {
     local error_message="${2}"
     local result=""
     local attempt_count=0
+    local exit_code=1
 
-    while [ -z "${result}" ] && [ ${attempt_count} -lt 3 ]; do
+    while [ ${exit_code} -ne 0 ] && [ ${attempt_count} -lt 3 ]; do
         result=$(eval "${command}")
+        exit_code=$?
         ((attempt_count++))
 
-        if [ -z "${result}" ] && [ ${attempt_count} -lt 3 ]; then
+        if [ ${exit_code} -ne 0 ] && [ ${attempt_count} -lt 3 ]; then
             sleep 1
         fi
     done
 
-    if [ -z "${result}" ]; then
-        log_and_halt_installation_on_error "1" "${error_message}"
+    if [ ${exit_code} -ne 0 ]; then
+        local ip6_output=$(ip -6 addr show)
+        local ip6_route_output=$(ip -6 route show)
+        local dns_servers=$(grep 'nameserver' /etc/resolv.conf)
+
+        log_and_halt_installation_on_error "${exit_code}" "${error_message}
+Output of 'ip -6 addr show':
+${ip6_output}
+
+Output of 'ip -6 route show':
+${ip6_route_output}
+
+Configured DNS servers:
+${dns_servers}"
     fi
 
     echo "${result}"

ic-os/components/setupos-scripts/functions.sh

@@ -16,15 +16,15 @@ function log_and_halt_installation_on_error() {
             echo "--------------------------------------------------------------------------------"
             echo "                       INTERNET COMPUTER - SETUP - FAILED"
             echo "--------------------------------------------------------------------------------"
-            echo -e "\n\n\n\n"
+            echo -e "\n\n"
             echo "        Please consult the wiki guide: Troubleshooting Node Deployment Errors."
-            echo -e "\n\n\n\n"
+            echo -e "\n\n"
             echo "--------------------------------------------------------------------------------"
             echo "                                     ERROR"
             echo "--------------------------------------------------------------------------------"
-            echo -e "\n\n"
+            echo -e "\n"
             echo -e "${log_message}"
-            echo -e "\n\n"
+            echo -e "\n"
             echo "--------------------------------------------------------------------------------"
             echo "                                     ERROR"
             echo "--------------------------------------------------------------------------------"