From 92f3a27a3e823649bf37c1372bafe4abac82ebf6 Mon Sep 17 00:00:00 2001
From: Plom Heller <plom@plomlompom.com>
Date: Wed, 2 Sep 2026 17:37:31 +0200
Subject: [PATCH] Suppress most kernel log messaging to Linux console.

---
 start_root.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/start_root.sh b/start_root.sh
index dd07ab4..1901de0 100755
--- a/start_root.sh
+++ b/start_root.sh
@@ -4,10 +4,12 @@ cd "$(dirname "$0")" || exit
 
 # constants unlikely to change
 FNAME_START_HOME=start_home.sh
+PATH_SYSCTL_PRINTK=/etc/sysctl.d/60-printk-console.conf
 
 # constants we might want to change at some point
 TO_INSTALL="man-db ntpsec-ntpdate sudo vim"
 USERNAME=plom
+PRINTK_LEVELS="4 4 1 7"
 
 msg 'Calling %s …' "${FNAME_START_HOME}"
 "./${FNAME_START_HOME}"
@@ -16,6 +18,10 @@ msg 'Ensuring packages: %s' "${TO_INSTALL}"
 apt-get -y update
 apt-get -y install ${TO_INSTALL}
 
+msg 'Quieting routine kernel messages on the console …'
+printf 'kernel.printk = %s\n' "${PRINTK_LEVELS}" >| "${PATH_SYSCTL_PRINTK}"
+sysctl -p "${PATH_SYSCTL_PRINTK}"
+
 msg 'Setting up user: %s' "${USERNAME}"
 adduser --comment "" "${USERNAME}"
 usermod -a -G sudo "${USERNAME}"
-- 
2.30.2