Installing LinuxCNC 2.8.4 on Raspbian 10 (Buster) tested on Raspberry Pi 3B+, Pi

JT wrote:

tasksel seems to do nothing and is already installed... you do have to login as root

JT

JT wrote:

Also the first part of this line is a link? Ah you need to add code tags...

-d /usr/lib/linux-image-$KERN/broadcom && cp -d /usr/lib/linux-image-$KERN/broadcom/* /boot/$KERN/

JT
 

mkdir -p /boot/$KERN/o/ 
cp -d /usr/lib/linux-image-$KERN/overlays/* /boot/$KERN/o/
cp -dr /usr/lib/linux-image-$KERN/* /boot/$KERN/ 
[[ -d /usr/lib/linux-image-$KERN/broadcom ]] && cp -d /usr/lib/linux-image-$KERN/broadcom/* /boot/$KERN/ 
touch /boot/$KERN/o/README 
mv /boot/vmlinuz-$KERN /boot/$KERN/ 
mv /boot/initrd.img-$KERN /boot/$KERN/ 
mv /boot/System.map-$KERN /boot/$KERN/ 
cp /boot/config-$KERN /boot/$KERN/ 
cat >> /boot/config.txt << EOF 
[all] 
kernel=vmlinuz-$KERN 
# initramfs initrd.img-$KERN 
os_prefix=$KERN/ 
overlay_prefix=o/$(if [[ "$KERN" =~ 'v8' ]]; then echo -e "\narm_64bit=1"; fi) 
[all] 
EOF

rodw wrote:

And what Seb said in the mail list back in september:
This is awesome!

I tried the "2022-08-08" Bookworm image for Raspberry Pi 4.  The image
is for the arm64 architecture.  Everything seems to work fine on a
Raspberry Pi 4B, including wifi, GUI, and the serial console.

After `apt-get install linuxcnc-uspace linux-image-rt-arm64` and a
little bit of tweaking, I'm now getting latencies around 150 µs, which
is not as good as the Raspbian Buster armhf image at  linuxcnc.org   (~70
µs latency) but probably acceptable.

It's neat that there are several easy(-ish), usable options for LinuxCNC
on Raspberry Pi now.