Hello!
I configure my Cramps2.2 with Beaglebone using this guide:
[github.com]

I used Debian 10.13 and I modified the "install-debian.sh" file adding a comment for all the lines in "step2 selection" (I attach the file).
I know Klipper has to create /tmp/printer, but it is not generate (and klippy.log is not present!)... no error during installation (I was able to flash mcu), but perhaps klipper has a problem that I can't understand....
Thanks

Solved....Reinstall libcc!