This howto describes how to install a Wireguard VPN server using minimal installation. Everything is done as the root user in this howto.

Download Raspberry OS Lite 64bit at: https://www.raspberrypi.com/software/operating-systems/ Use Etcher or whatever to install the downloaded zip on a SD card.

Use raspi-config to set network and change password of the pi user and change the hostname:

raspi-config

systemctl enable ssh.service
systemctl start ssh.service

apt-get update
apt-get -y upgrade
apt-get -y remove --purge triggerhappy logrotate dphys-swapfile dc nano
apt-get -y autoremove --purge

Edit the following file and add “fastboot noswap ro” to the end of the line so it looks something like this:

/boot/cmdline.txt

console=serial0,115200 console=tty1 root=PARTUUID=6c586e13-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait fastboot noswap ro

apt-get -y install busybox-syslogd
apt-get -y remove --purge rsyslog

Add the following at the end of the following file:

/etc/bash.bashrc

alias temp='/opt/vc/bin/vcgencmd measure_temp'