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Just use.

If you want you can installthen reboot

Good evening, I downloaded and burned the latest raspberry pi 5 image and have run into a couple of problems.  The user "cnc" password "cnc" lacks root access and only has read access to the etc file.  Is there a SU password for this latest image.  I need to make some changes to the etc /network files as there is no apparent network manager showing in the available applications.  Thanks!

There's been official images for the RPi5 from about Dec 2023.

this is an on and off project for me so I built it maybe 4 months ago before there was an official image... I'll pull down the 2.9.4 and reimage the pi with it and see if that makes it happy...

I'll report back if that doesn't fix it..

What image are you using for the rpi5? I was having read errors on my 7i97 very often with whatever image I was using (I don't remember when I got it) I downloaded the latest off of linuxcnc's site (2.9.4)

It has been rock solid. No issues running it for a week now.

sam

Strange, others have used the RPI5 with Ethernet FPGA cards without issue.

What kernel are you using?

(uname -a)

I guess it could be a hardware issue.

Do lose link lights when you lose the network connection?

I can try and duplicate this when I get a chance.

I was able to cause it to crash out without going into Linux CNC if i load it up too much with commands like
sudo chrt 99 ping -i .001

It handled running realtime at 1ms delay with averages of .101ms  for 10000, 20000 and 30000 pings, but when I jumped to 50000 pings it crashed out at about 40k pings..

So there is something that someone in the "chain" doesn't like under high network traffic..

and again, unplugging and plugging back in (just the network) fixes it... which is... wierd... (to me)..

Here is my Servo Period:
SERVO_PERIOD = 1000000

and here is my Servo Timeout
setp hm2_7i76e.0.watchdog.timeout_ns 5000000

the whole config can be found here (its where I wrote it a while ago, but my old pc died so working on getting it up and running on this pi)

github.com/Skyfire-community/SVM2-LinuxCNC

Dude damn that worked actually, below you will find a functioning config for the pi5 which is based on the link provided above, time to get some drivers hooked up

Yeah for sure, i was gonna make a little setup guide as soon as i have it done correctly so i dont have to do all the research again in the future, might aswell post it all on here for everyone that has similar issues

The config the user posted was for a 6 axis machine. If that's what you need it should be good to go once you correct the couple of mistakes.

If I may ask, once you have the basic config working, could you attach the files to this thread. As I attempting to have a one stop thread with a heap of info.
forum.linuxcnc.org/9-installing-linuxcnc...the-rpasberry-pi-4-5

Awesome, thanks, will take a look and see what i can fix, i dont think setting up a config for 6 axis will be a big problem once i actually get the gpio stuff working

Regarding GPIO drivers.

For the Rpi5 please use hal_gpio
For the RPi4 hal_pi_gpio or hal_gpio (this looks like the easier option to setup) , should be no need to mess with permissions

linuxcnc.org/docs/devel/html/drivers/hal_gpio.html
linuxcnc.org/docs/devel/html/drivers/hal_pi_gpio.html

What is the servo thread rate?

How are the ping times?

This may be a starting point
forum.linuxcnc.org/9-installing-linuxcnc...i-5?start=350#320817

But continue reading, as the user did make a few mistakes in the hal file, but these were pointed out in the next post. May not be exactly want you want, being 6 aixs, but it's a starting point.

But yeah it's hal_gpio for the PI5
linuxcnc.org/docs/devel/html/drivers/hal_gpio.html

jhandel wrote:

Got a strange one with a Pi5...   Network seems fine when I am just pinging my Mesa card (a 7i76e) but when I run Linux CNC, things kick on but then the network crashes and I get a bazillion (technical term) hm2/hm2_7i76e.0: error queuing read iter=xxxx) and everything turns back off.. 

Once it dies I can't even ping the Mesa card (10.10.10.10) until I unplug and plug back in the ethernet cord... Then its happy as a clam pinging.. but once I start up Linux CNC again same crash right as the UI inits. 

(Linux CNC 2.9.3, PI5 8Gb, NVMe Boot)
 

You may want to start reading from here:
forum.linuxcnc.org/27-driver-boards/4223...read?start=20#207308

Unfortunately I don't have any ethernet hardware to test with (only SPI), I have a 7i92 but that's in the mill enclosure and is a PITA to access. From reports the 6.12 kernel on the most recent RPi images have better latency, but I can't say whether that would solve your issue.