--- /dev/null
+#!/bin/sh -eu
+tool=$(readlink -e "${0%/*}/..")
+. "$tool"/local/lib.sh
+
+sudo install -m 644 -o root -g root \
+ "$tool"/etc/inittab \
+ /etc/inittab
+sudo install -m 644 -o root -g root \
+ "$tool"/etc/login.defs \
+ /etc/login.defs
+grep -q '^session optional pam_umask.so\>' \
+ /etc/pam.d/common-session ||
+sudo install -m 644 -o root -g root /dev/stdin \
+ /etc/pam.d/common-session <<-EOF
+ $(cat /etc/pam.d/common-session)
+ session optional pam_umask.so
+ EOF
+grep -q '^hvc0$' \
+ /etc/securetty ||
+sudo install -m 644 -o root -g root /dev/stdin \
+ /etc/securetty <<-EOF
+ $(cat /etc/securetty)
+ hvc0
+ EOF
+grep -q '^xvc0$' /etc/securetty ||
+sudo install -m 644 -o root -g root /dev/stdin \
+ /etc/securetty <<-EOF
+ $(cat /etc/securetty)
+ xvc0
+ EOF