Rasberry Pi

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Rasberry Pi OS

Command line configuration program:

raspi-config

Upgrades

apt update && sudo apt upgrade -y

Web Server

apt install apache2

Configuration: /etc/apache2
Serve from: /var/www/html

Change swap

free -m

swapoff -a
dd if=/dev/zero of=/swapfile bs=1M count=1024
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile

Add to /etc/fstab:

/swapfile none swap sw 0 0

NFS

apt install nfs-common -y
mkdir /mnt/store

Edit /etc/fstab:

server:/store     /mnt/store      nfs     noauto,x-systemd.automount,x-systemd.device-timeout=10,timeo=14,x-systemd.idle-timeout=1min,rw,hard,intr  0  0

systemctl daemon-reload
systemctl restart mnt-store.automount

Composite Video

Note: CVBS is on sleve; Gnd is ring 3. It is enabled when no HDMI monitor is connected.

In /boot/firmware/config.txt:

enable_tvout=1
dtoverlay=vc4-kms-v3d,composite

Ensure hdmi_force_hotplug=1 is commented out or set to 0.

In /boot/firmware/cmdline.txt, either:

vc4.tv_norm=PAL
vc4.tv_norm=NTSC

To control overscan, see settings:

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Temperature

Divide value by 1000 to get temp in C:

/sys/class/thermal/thermal_zone0/temp

CPU Core throttling above 80 C.