LinuxCNC 2.8.0 Debian 10 Buster PREEMPT-RT ISO on pi-400

Did my best to install image on Pi 400 4G , but with no luck

Has someone succeeded to install on this pi?

regards
Wilfried

Use this:
www.linuxcnc.org/iso/linuxcnc-2.8.1-pi4.zip

Thanks Tom
got it installed , ( even with message = CPU 0 not supported )
inserted network cable and have ETH0 adress , so assume that the connection is good .
Problem is the browser does not work. any idea why

Wilfried

Try
sudo apt-get install firefox

message received
E:  Package ' firefox '  has no installation candidate 

did some more internet searches  . 
the command seems to work for Ubuntu

For Debian I had to use 
sudo apt-get install firefox-esr   

Thank you for your help

 

You have to run chromium from the command promp with no sandbox (Google it, i cant remember the exact option string)