diff --git a/scripts/mkloopcard_beagleboard_xm_chroot_hook.sh b/scripts/mkloopcard_beagleboard_xm_chroot_hook.sh
index ae51a8b..ed4026d 100755
--- a/scripts/mkloopcard_beagleboard_xm_chroot_hook.sh
+++ b/scripts/mkloopcard_beagleboard_xm_chroot_hook.sh
@@ -89,6 +89,7 @@ setup_users() {
 
 setup_serial() {
 	# setup serial login
+	sed -i "s:^s0.*::" /etc/inittab
 	echo "s0:12345:respawn:/sbin/agetty 115200 ttyO2 vt100" >> /etc/inittab
 }
 
diff --git a/scripts/mkloopcard_beaglebone_chroot_hook.sh b/scripts/mkloopcard_beaglebone_chroot_hook.sh
index 0113d73..0c31626 100755
--- a/scripts/mkloopcard_beaglebone_chroot_hook.sh
+++ b/scripts/mkloopcard_beaglebone_chroot_hook.sh
@@ -51,6 +51,7 @@ setup_startup_caches() {
 
 setup_serial() {
 	# Setup serial login
+	sed -i "s:^s0.*::" /etc/inittab
 	echo "s0:12345:respawn:/sbin/agetty 115200 ttyO0 vt100" >> /etc/inittab
 }
 
diff --git a/scripts/mkloopcard_efikamx_chroot_hook.sh b/scripts/mkloopcard_efikamx_chroot_hook.sh
index 92b9727..287b2e0 100755
--- a/scripts/mkloopcard_efikamx_chroot_hook.sh
+++ b/scripts/mkloopcard_efikamx_chroot_hook.sh
@@ -89,6 +89,7 @@ setup_users() {
 
 setup_serial() {
 	# setup serial login
+	sed -i "s:^s0.*::" /etc/inittab
 	echo "s0:12345:respawn:/sbin/agetty 115200 ttymxc0 vt100" >> /etc/inittab
 	echo "ttymxc0" >> /etc/securetty
 }