Tx for your support, peterleinchen.

I did decide to start for now with coderus aegis-install-hack and/or his opensudo package. That seems to cover my current need of been able to install correctly my own CA certificates (as I understand).

I will postpone the migration to the open-mode kernel to a later time, as this procedure needs definitely a more accurate planning and I'm assuming that finally it signifies also substantially higher efforts to bring my N9 up to the current 'productive' Status...

Best regards.