installer: keep offline finalizer non-interactive

install/helpers/errors.sh

@@ -87,6 +87,22 @@ catch_errors() {
   fi
 
   stop_log_output
+
+  if [[ -n ${OMARCHY_CHROOT_FINALIZER:-} ]]; then
+    show_cursor
+    {
+      echo "Omarchy installation stopped inside offline finalizer."
+      echo "This command halted with exit code $exit_code:"
+      if [[ -n ${CURRENT_SCRIPT:-} ]]; then
+        echo "Failed script: $CURRENT_SCRIPT"
+      else
+        echo "$BASH_COMMAND"
+      fi
+      echo "The live ISO orchestrator will show the visible error screen."
+    } >&2
+    exit "$exit_code"
+  fi
+
   restore_outputs
 
   clear_logo

install/helpers/logging.sh

@@ -1,4 +1,9 @@
 start_log_output() {
+  # Offline ISO installs already have a live dashboard on tty1. The chrooted
+  # finalizer's stdout/stderr is captured to logs, so this monitor would only
+  # create noisy feedback in the log and burn CPU.
+  [[ -n ${OMARCHY_CHROOT_FINALIZER:-} ]] && return 0
+
   local ANSI_SAVE_CURSOR="\033[s"
   local ANSI_RESTORE_CURSOR="\033[u"
   local ANSI_CLEAR_LINE="\033[2K"