Last update of LinuxCNC Raspberry Pi4 USB does not work

kramerda wrote: 2. Today repeat process on same exact CPU with same zip file from from Linuxcnc.org on another 64Gb Samsung 10 micro SD card.

Can you try the one here instead?

www.linuxcnc.org/temp/image_2021-01-20-linuxcnc-pi4-3G.zip

(and report back, making it clear which image you are talking about, because I am now very confused indeed)

USB works ok on my RPI 4 4Gb RAM
Chromium does't work but it can be reinstlled
sudo apt-get reinstall chromium

www.linuxcnc.org/temp/image_2021-01-20-linuxcnc-pi4-3G.zip

Hardware : BCM2835
Revision : c03112
Serial :
Model : Raspberry Pi 4 Model B Rev 1.2

Hi Andy,
I just tried the image 2021-01-20,,,3G
on boot it shows CPU0 not supported.
But it works, latency-test runs,
linuxcnc starts, runs a simulation.
WIFI doesn't work.
I din't run update, just switched to german.
I use a Raspberry Pi 4GB
Thank you a lot, for your work!

Andy,

image 2021-01-20,,,3G works for me.
USB good
Chrome required reinstall
LAN works
Linuxcnc runs

Hardware : BCM2835
Revision : c03112
Serial :
Model : Raspberry Pi 4 Model B Rev 1.2

Thanks

Andys 3gb version on kernel 4.19.71.rt24
works with
Hardware : BCM2835
Revision : d03114
Model : Raspberry Pi 4 Model B Rev 1.4 8gb
Revision : c03112
Model : Raspberry Pi 4 Model B Rev 1.2 4gb
works just fine, 3 gbs of ram, usb works, but ive never had issues with any images on any of my 4gb ones

nion wrote: Hardware : BCM2835
Revision : c03112
Model : Raspberry Pi 4 Model B Rev 1.2

roycegb wrote: Hardware : BCM2835
Revision : c03112
Model : Raspberry Pi 4 Model B Rev 1.2

my rpi4 8gb is also coming up as hardware BCM2835, actually all my units show bcm2835, which always seemed odd..why is this?
edit, i found out why

Raspberry Pi wrote: Note: As of the 4.9 kernel, all Pis report BCM2835, even those with BCM2836, BCM2837 and BCM2711 processors. You should not use this string to detect the processor. Decode the revision code using the information below, or cat /sys/firmware/devicetree/base/model

Raspberry Pi wrote: Why does cpuinfo report I have a BCM2835?
The upstream Linux kernel developers had decided that all models of Raspberry Pi return bcm2835 as the SoC name. At Raspberry Pi we like to use as much upstream kernel code as possible, as it makes software maintenance much easier, so we use this code. Unfortunately it means that cat /proc/cpuinfo is inaccurate for the Raspberry Pi 2, Raspberry Pi 3 and Raspberry Pi 4, which use the bcm2836/bcm2837, bcm2837 and bcm2711 respectively. You can use cat /proc/device-tree/model to get an accurate description of the SoC on your Raspberry Pi model.

elovalvo wrote: I have prepared a version of Rapbian with RT-preempt patch:
Linux raspberrypi 5.4.87-rt48-v7l +
and I installed LinuxCNC 2.8.1
- Raspberry Pi 4 (2Gb rev. b03111 - 4GB rev. c03111),
- Raspberry Pi 3b+ rev 1.3 ( rev. a020d3)
- Raspberry Pi 3b (1GB rev. a02082).

Hardware : BCM2711
Revision : d03114
Model : Raspberry Pi 4 Model B Rev 1.4 8gb
Revision : c03112
Model : Raspberry Pi 4 Model B Rev 1.2 4gb

both work, usb is fine, 8gb has 8gb of ram, 4gb has 4gb, havent tested it with 7c81 yet,

edit, also how are you guys using apt-get upgrade without messing up the kernel? every time i upgrade i usually have to recompile the kernel. could i have just re selected it in the config the whole time?

Great news, I tried again and now it all works on my Pi4 8Gb. This time I did not provide the wpa_supplicant.conf on the image because I assumed it the wlan wouldn't work anyway. And probably more important, I had my wlan router rebooted.

sorry for confusion - in summary only image issue was with the 2.8 currently downloadable from linuxcnc/downloads page
AND
when I opted to enable WiFi and
AND
click on the upgrade tab on first setup
otherwise it works fine

Quick ? Andy....what process did u use to create the .3H image zip file? I've used accessories/ pi disk copy and win32 imager but I end up with a large file same as the SD card used...64Gb.....
Thanls

Hi

Today test with brand new pi 400 using :
www.linuxcnc.org/temp/image_2021-01-20-linuxcnc-pi4-3G.zip

No wifi detected.

kramerda wrote: Quick ? Andy....what process did u use to create the .3H image zip file?

I use: github.com/LinuxCNC/pi-gen

But it relies on all the packages being available on a repository, and just assembles an SD image to a repository.

git clone it, edit the "stage" files, and then "sudo ./build.sh". A base and light image will appear in the "deploy" directory some considerable time later.