raspi-config inside a chroot script may lead to unexpected behaviour

[guysoft]

See issue reported here:
guysoft/CustomPiOS#113

Text:

I just want to report that using raspi-config inside a chroot script may lead to unexpected behaviour. Here is my case:

#!/usr/bin/env bash
########

# Source error handling, leave this in place
set -x
set -e

source /common.sh
install_cleanup_trap

unpack /filesystem/home/pi /home/"${BASE_USER}" "${BASE_USER}"
unpack /filesystem/home/root /root root
unpack /filesystem/boot /boot

# -------------------------------------------------------
#           DEPENDENCIES FOR INSTALLATION
# -------------------------------------------------------
apt-get update && apt-get -y upgrade

apt-get install -y libsdl2-dev .....

# -------------------------------------------------------
#           Binary compilation
# -------------------------------------------------------
...

# Unpack root at the end, so files written in /etc... are not overwritten
unpack /filesystem/root /

# Make emulation binary executable by current user
chmod +x /usr/bin/compiled

# Configure auto login as pi user (using raspi-config)
raspi-config nonint do_boot_behaviour B2

The last 2 lines, is where things went wrong. Basically once you ran raspi-config the autostart of getty (/etc/systemd/system/[email protected]/autologin.conf) contains the following lines:

[Service]
ExecStart=
ExecStart=-/sbin/agetty --autologin  --noclear %I $TERM

Instead of

[Service]
ExecStart=
ExecStart=-/sbin/agetty --autologin pi --noclear %I $TERM