diff --git a/gnu/installer/final.scm b/gnu/installer/final.scm
index 869be8814b..c084123064 100644
--- a/gnu/installer/final.scm
+++ b/gnu/installer/final.scm
@@ -137,7 +137,13 @@ or #f.  Return #t on success and #f on failure."
       (lambda ()
         (start-service 'cow-store (list (%installer-target-dir))))
       (lambda ()
-        (run-command install-command #:locale locale))
+        (with-output-to-file "/dev/console"
+          (lambda ()
+            (with-error-to-file "/dev/console"
+              (lambda ()
+                (setvbuf (current-output-port) 'none)
+                (setvbuf (current-error-port) 'none)
+                (run-command install-command #:locale locale))))))
       (lambda ()
         (stop-service 'cow-store)
         ;; Remove the store overlay created at cow-store service start.