LinuxCNC Rpi4 DietPi Image

  • Warning
This is not an officially supported image.
It's just one I've thrown together using dietpi as a basis.
This is not supported.

This image contains DietPi and LinuxCNC 2.9, with a realtime 6.3 64bit kernel

Setup

Password Change

The first thing you may want to do is change the default password.
For the dietpi and root users the default is dietpi for the password

# Change the logged on dietpi password
passwd
# Change the root password
sudo passwd

WIFI

Next is WIFI, when first booting up it may take a couple of minutes to boot.
This is due to WIFI already being enabled but there is no SSID configured.

# Open Up the dietpi config menu
sudo dietpi-config
# Select Network Options: Adapters
# Select Wifi
# Select Scan
# Then pick which wifi SSID to connect to long with the WPA Password.
# Select Back / Apply

After setting up the WIFI it's best to do a reboot.
This will allow the NTP service to run and select the correct date / time.

Linux Kernel Versions

To select which kernel version to use, edit the /boot/config.txt file

This is the default, it selects the 6.3 relatime kernel

os_prefix=/rt-6.3/
#os_prefix=/rt-6.4/

This selects a 6.4.0-rc2 realtime kernel

#os_prefix=/rt-6.3/
os_prefix=/rt-6.4/

This defaults to the non realtime raspian kernel 6.1.21-v8+

#os_prefix=/rt-6.3/
#os_prefix=/rt-6.4/

Kernel Sources / Patches

For 6.3

For 6.4

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