Re: NWDR18 image release announcement

Eric Williams

Hi team,
I've been having issues with the Draws hat and it is installed on a Pi4.  I first tried getting it to work on KM4ACKs Build-a-Pi (Ham experimentation right?). Then I formatted my sd card and followed the getting started guide for image nwdr18.img.xz 2020-Dec-05 08:36:33 1.8G and got as far as the fldigi configuration.  ax.25/direwolf appeared to work and sent/received appropriately.  fldigi keys the radio (yaesu FT-100d attached currently to 1 watt to dummy load) but it appears my cat cable is not reading or setting the radio frequency so I also tried fiddling with flrig to no avail.  I stopped here.  Reading further: 

Placing A Hold On Kernel Upgrade

  • For reference only, the current Linux kernel is safe to use with DRAWS
  • To verify your current kernel version

    uname -r
  • You should see: 4.19.118-v7l+

  • If you see : 5.4.51-v7l+ then your DRAWS hat will have problems

    • The driver for the TI ads1015 chip is missing in this kernel.
    • To revert your kernel back to 4.19.118 run the following (courtesy of Thomas KF7RSF):

      sudo rpi-upgrade e1050e94821a70b2e4c72b318d6c6c968552e9a2
  • Do NOT use the following commands:

    • apt-get dist-upgrade
    • apt full-upgrade
What I saw was not kernel 4.19.... 
and n7nix's verify_config guide 'sensors' fails to show
so I try
    • sudo rpi-upgrade e1050e94821a70b2e4c72b318d6c6c968552e9a2
and get sudo: rpi-upgrade: command not found

I formatted (again) and haven't connected to network or configured anything.
First check of uname -r gives me 5.4.79-v7l+

Help, please and thank you!
Eric Williams de KF4YEP

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