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I am not getting to the stage of installing. Once i have done the add the url and pgp keys then the next step of doing sudo apt-get update is when the error happens.

It gives the list of the known sources with the error at the end and the source for probebasic is listed but errors out.
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Right. I did a new rebuild on a later kernel from the thread LinuxCNC 2.9.2 and 2.93 images for Raspberry Pi 4b & 5
Nobody seemed to be screaming that it destroyed civilisation so I put it on an SD, booted it and flipped it onto the NVMe.

This is with a six inch cat8 cable between the Pi5 and the Mesa.
This is silly. I must be having a senior moment here. The board is definitely jumpered DN DN and the
documentation assures me that that means 10.10.10.10 on 'as delivered' firmware.

cnc@Pi-CNC:~$ ping 10.10.10.10
PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.
From 10.10.10.11 icmp_seq=1 Destination Host Unreachable
From 10.10.10.11 icmp_seq=2 Destination Host Unreachable
From 10.10.10.11 icmp_seq=5 Destination Host Unreachable
^C
--- 10.10.10.10 ping statistics ---
7 packets transmitted, 0 received, +3 errors, 100% packet loss, time 6150ms
pipe 4
cnc@Pi-CNC:~$ sudo ifconfig -a
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.10.10.11  netmask 255.0.0.0  broadcast 0.0.0.0
        ether d8:3a:dd:b0:cf:14  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 89  bytes 14327 (13.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 112  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
 

i removed the amd64 warning from the docs now, arm64 should be a viable install. some things i recall were that the linuxcnc iso has some remnant installations that made installing qtpyvcp easier previously and these may conflict, but i do not recall what they were off the top of my head. it may be the skipped warnings or errors when trying to install via apt., do you have the install log still with any of the possible conflicts that popped up?

So interesting in the top notes the is the bit about only supporting amd64 for apt install but further down there are the instructions about how to install for pi 4 and 5. So i wonder which is correct.

ARM64 Raspberry Pi 4 and 5 Installation Repository:
sudo apt install curl
echo 'deb [arch=arm64] repository.qtpyvcp.com/apt stable main' | sudo tee /etc/apt/sources.list.d/kcjengr.list
curl -sS repository.qtpyvcp.com/repo/kcjengr.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/kcjengr.gpg
gpg --keyserver keys.openpgp.org --recv-key 2DEC041F290DF85A

Going by the docs you linked to the apt install is only for amd64.

Good morning.
for some reason it seemed like it would be fun to set up Ethercat and LinuxCNC and ProbeBasic so here we go.  Downloaded the 2.9.3 image from (forum.linuxcnc.org/9-installing-linuxcnc...or-raspberry-pi-4b-5), Then went to follow the standard instructions for installing probe basic from the install site Probe Basic Install.

Followed the instructions for the Arm64 (kcjengr.github.io/probe_basic/stable_quick_start_apt.html) but get the following error message on trying to do the Apt update before installing

N: Skipping acquire of configured file 'main/binary-arm64/Packages' as repository 'repository.qtpyvcp.com/apt stable InRelease' doesn't support architecture 'arm64'

I have checked the kcjengr.list file at /etc/apt/sources.list.d and it lists the arch type as arm64

Bari wrote:

linuxgizmos.com/updated-wiznet-reveals-n...ernet-functionality/

Raspberry Pi RP2350 and the fully hardwired TCP/IP controller W5500 enhancing the capabilities of the traditional Raspberry Pi Pico2 board with additional Ethernet functionality via W5500

Thanks, just ordered one with GoFundMe contributions.

meister wrote:

if i have overlooked any open questions, please ask again, i was a bit busy at the weekend and lost the thread

---

here is my excuse:mitsubishi rv-e2 

 

without controller and one harmonic drive is broken
 

I approve of this excuse!

Quick question about the iceshield config:

Should the pi be emitting 18mHz, rather than 5mhz via pin 7 instead, since the oscillator is configured as 18mhz on pin 35 on the up5k? I wonder if this is the source of my following error at higher speeds?

linuxgizmos.com/updated-wiznet-reveals-n...ernet-functionality/

Raspberry Pi RP2350 and the fully hardwired TCP/IP controller W5500 enhancing the capabilities of the traditional Raspberry Pi Pico2 board with additional Ethernet functionality via W5500

linuxgizmos.com/updated-wiznet-reveals-n...ernet-functionality/

docs.wiznet.io/Product/iEthernet/W5500/w5500-evb-pico2

docs.wiznet.io/Product/iEthernet/W5100S/w5100s-evb-pico2

~$14ea

Is it  possible you have lost the link? (maybe 7I96S 5V power issue)

What does:

sudo chrt 99 ping -i .001 -q -c 10000 10.10.10.10

report?

(will run 10 seconds and report ping statistics)

I get greeted with either of these two screens when i try to boot up my machinee. its a fresh install of linuxcnc 2.93 on a raspberry pi 4 cm4 and a 7i96s, i have tried with other realeses but the issue remains the same. if it loads in to the program thee error messages pops up after a few seconds so not instant. Does anyone maybe know why or could point me in a direction because now im completly lost

First of all, my deepest deepest sympathies,sorry to hear you live in Melbourne, the only good thing Victoria has to other is Philip Island and the roads, airports and docks that lead out of the state.

Why aren't you using the premade image for your RPi ?

The links are on the Linuxcnc home page under downloads.

@ccatlett1984 That was a bit of a pain to do, I would not recommend unless you have experience soldering and particularly desoldering.
I removed the factory Raspberry Pi two row header and soldered on a new stackable female header in it's place from the bottom. A
good tip to help with factory header removal is to pry off the plastic and desolder each pin one by one.

I want to say the exact part I used was a Pololu 2749, but check the dimensions of the header to be sure.

Thread update: MX4660 is gone, Thread can be locked no items remain.

Hi,

Thank you Alan for the original instructions, I have learned a lot from this post in the three days.

-- I got stuck: my kernel is SMP PREEMPT rather than SMP PREEMPT_RT.

I am Be Hai from Melbourne, Australia. I would like to learn LinuxCNC. Presently I know nothing about CNC or LinuxCNC.

I am a computer programmer. I am familar with Linux, and a tiny bit familar with Raspberry Pi 4 Model B: I have been learning basic physical computing with it, using the Python language.

I have spent more than a week learning about LinuxCNC, particularly how to install it onto a Raspberry Pi 4 Model B.

I spent the last three days exercising the instructions kindly posted by Alan.

⓵ I am using a clean and fresh Ubuntu 24.04.1 LTS (Noble Numbat) machine to do the build.

( I first started with Ubuntu 22.10 (Kinetic Kudu) and I went nowhere with this EOL version. )

⓶ The command

```
make RASPIOS_IMAGE_NAME=raspios_full_arm64
```

produces raspios_lite_arm64-Pi5.zip. I burnt this image into my Pi 4 anyway. And I have managed to get as far as to section 2.6 Install Mesaflash. There are error in between but I managed to find solutions for them.

LinuxCNC was installed, but I could not run it since there was no desktop.

⓷ Based on the instruction given in github.com/remusmp/rpi-rt-kernel

I replaced ```make RASPIOS_IMAGE_NAME=raspios_full_arm64``` with:

```
sudo make Pi4
```

This command produces raspios_lite_arm64-Pi4.zip. Applying this image, the kernel information reports only SMP PREEMPT:

```
uname -a
```

Output:

```
Linux picnc 6.6.31+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.6.31-1+rpt1 (2024-05-29) aarch64 GNU/Linux
```

```
cat /proc/version
```

Output:

```
Linux version 6.6.31+rpt-rpi-v8 (This email address is being protected from spambots. You need JavaScript enabled to view it.) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT Debian 1:6.6.31-1+rpt1 (2024-05-29)
```

⓸ Interestingly, if I use 'Raspberry Pi OS (other)' from Raspberry Pi Imager as shown:



Then select:

```
Raspberry Pi OS Full (64-bit)
A port of Debian Bookworm with desktop environment and recommended applications.
Released: 2024-07-04
Online - 2.8 GB download
```



I also have the exact same kernel, but also with the desktop.

I am taking a break... I will try again to get RT going.

Thank you.

...behai.