Last update of LinuxCNC Raspberry Pi4 USB does not work

Let me try to confuse you some more ...

Can you run apt-get update and apt-get upgrade on that 4GB?

That was where it went wrong before for me. Fresh install usb works, after running update/upgrade it stopped (without the 3GB limit linux-image-4.19.71-rt24-v7l+ 3-sept eeprom)

If yours keeps working (with 3GB limit linux-image-4.19.71-rt24-v7l+) then all seems fine for the 32 bit image.

However if that memory limit is needed, why buy anything else than a 2GB to start with? Seems to me that 3GB limit comes from the 32bit arch in the first place.(early 2000's flashbacks)

So instead of limiting a 64bit cpu to a 32bit OS, and consequently also limiting it's memory <4GB,. My approach was to use arm64 bit from the start. Not only the rpi also other sbc's, android devices and ie chromebooks run arm64.

Hi

Just tried with fresh official debian 32bits using the guide and sdcard
linuxcnc.org/docs/2.8/html/getting-start...lling_on_raspbian_10

After rebooting on the 6e step, no more usb no keyboard/touchscreen.

only using apt-get update

alkabal wrote: Hi

Just tried with fresh official debian 32bits using the guide and sdcard
linuxcnc.org/docs/2.8/html/getting-start...lling_on_raspbian_10

After rebooting on the 6e step, no more usb no keyboard/touchscreen.

only using apt-get update

For Which model raspberry , what eeprom version and also the kernel version used?

My unit is : Rpi4gb c03111 (rev 1.1)

The memory trick work fine i get USB working again after rebooting

The built in firmware from linuxcnc document

reboot after linuxcnc USB work

tomorrow try apt-get upgrade

alkabal wrote: My unit is : Rpi4gb c03111 (rev 1.1)

The memory trick work fine i get USB working again after rebooting

I have never had any problem with that model running the LinuxCNC image...

Anyway, I have built a new SD card image, and kicked off the build of a second with the memory limit.
I did plan to put them both on the server for testing, but something has come up here and I am going to be away from my computers for a few days.

I never get problem before, but from some time i get no more usb as you can see after installing kernel on official debian, or after apt-get upgrad with your image.

Maybe this is because i have updated the boot eeprom, i really do not know why but for sure i get usb problem recently with this old model.

Many thanks for the work done, I hope to you nothing bad is happened !