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To install raspian12 bookworm image, prepare an SD card with the RaspiOS version for the type of Raspberry you are interested in (pi4, Pi400, Pi5).
I find it comfortable
www.raspberrypi.com/software/
because it also allows you to select various options (ssh, wifi, locales, etc..).

Boot the SD and run these commands from the terminal to update the RaspiOS version


Upon reboot, copy the install-kernel files and the zip file to the /tmp directory

Then run these commands from terminal


(in the case of Pi4 and PI400)

or
(in the case of Pi5)

So you need to edit the cmdline.txt withadding the following commands to the end of the line
isolcpus=2,3 rcu_nocbs=2,3 nohz_full=2,3 max.processor.cstate=1

elovalvo wrote:

No, the images are different.
If you wait a couple of days I can create updated ones for both versions of Raspberry

Here are the files I promised you

drive.google.com/file/d/1jBEO7Acl0C0t4id.../view?usp=drive_link  (Pi5 - kernel-6.6.32-v8-16k-elv.zip)

drive.google.com/file/d/1B58q4xJgBR4GnxI.../view?usp=drive_link  (Pi4, Pi400 - kernel-6.6.32-v8-elv.zip)

drive.google.com/file/d/1ltrkbEiI_BssNY0.../view?usp=drive_link (install-kernel)

Since for building the RT kernel I followed this procedure (forums.raspberrypi.com/viewtopic.php?t=343387), in the next post I describe the procedures for using.

Forgot about this one, the RPi4 network interface is known to go "sleep", some users reported this occurring after boot.

It would be interesting to see if the ping issues happen when the Mesa card is connected to a non-RPi device.

Where the network symbol is in the top right, click on that and that opens the network manager. Can't remember whether Rod left this off to reduce image size, so it may not be there. I was assisting Rod when he was putting the image together and I was including a "little bit extra" in the images I was putting together, so that's why the old memory maybe a bit hazy.

I there any reason you have a /8 mask (16,777,216 hosts from memory this is a publcily routable network, it's be a while since my networking course) rather than a /24 mask (256 hosts which is reserved for private\home networks ) and there is no need for a gateway as there are no other devices on that network subnet. Who recommended these values ?

Using the official download image without any modifications.

I cannot find Network Manager on this release.

Used Terminal to launch "menu-config".
Get a dialog box with options to edit entries.
All wifi channels deactivated.
Only one one wired channel activated and edited per:
- Device: eth0 ( ::::: ) as reported by "ip a",
- IPv4 config: Auto,
- Address: 10.10.10.11/8,
- Gateway" 10.10.10.1,
- IPv6: Ignore,
- Automatically connect: [x],
- Available all users: [x].

All workshop equipment and ancillaries de-energized.
Steppers powered off.
VFD in adjacent cubicle powered on, but not operating spindle.
Operation as reported earlier with lost packets.

John.

Just out of interest if you disable the wifi netwotk via the network manager do you still notice this behaviour.
What are the subnets of the Mesa & Lan networks ?

Hi John my email is in my github profile, github.com/kzali, please contact me and I will be happy to work something out.

cheeers
Kamran Zali

Kamran,
Thanks, I will take you up on your offer.

Powered up the system at 15 degrees C this morning and got for ping "not reachable".
Went through menu-config, changed nothing.
Then ping and got 86 packets through, frozen count, stats 45% lost.

Earthing looks good, card power is 5.07 V.

John.

I have a 7i96 brand new and unused, You are welcome to contact me in the Sydney area and Cornholio has my contact.

Cheers
Kamran

Contact details are on my gtihub page.
github.com/ozzyrob

Tried a third cable this morning with similar results.

cornholio,
Thanks for the kind offer, I will send a PM.

John.

edit:
Well, PMs don't work.
How can we get in touch ?

John.

I've got the equipment & ability to do that sort of work, based in Sydney myself, used to work as a tech for one of the larger EFTPOS companies doing smd board level repairs. I could even just look at it for you you.

But fully understand if you want to go through Mesa.

PCW, thanks for that.

Gave the contacts a good wash with isopropyl alcohol and preliminary results seemed better, but stats show about 50 % lost packets.

I will try again tomorrow.

Regardless of solution, I need to purchase a replacement board, if only as a spare for future.
Are there any agents in Australia (I am in Sydney) ?

John.

You might try cleaning the 7I96 RJ45 socket in case it's contaminated/corroded.
Worst case, you can return it to Mesa for repair/replacement

My 3-axis mill operated for over a year with LC 2.8.4 on a RPi 4B 4GB.
Then I tried to get the WiFi working. failed the SD card, so started to install LC 2.9.2 with a new SD card.

Problems from the start resulted in me changing to a RPi 4B 8GB, propped up outside the cubicle.

Now, when pinging, I get serious packet loss.
All addresses etc correct as I have had Axis opening on occasion.
The original installed ethernet cable is 250 mm long, and I have a general-purpose spare 10 m long on a spool.

With either cable connected, either way around, finger stressing the connection at the 7i96 socket interrupts packets.
The same stressing at the RPi socket is reliable.
Sometimes, with a bit of stressing, the monitor LED on the 7i96 socket extinguishes.
Sometimes packets will start on the ping, but other times not, with a bit of stressing then starting the packets.

It would appear the Socket on the 7i96 is the problem.

Any suggestions ?

John.