Hi Marcus - the buster OS is modern and I know it runs on the
raspberry-pi4.
To install 3.8, on buster, one needs to use the backports from sid
(which is not a release)
apt install -t backports-buster gnuradio-dev
To use the backports, one needs to have the following entries in the
/etc/apt/sources.list file
deb http://ftp.debian.org/debian buster-backports main contrib non-free
deb-src http://ftp.debian.org/debian buster-backports main contrib
non-free
then run
apt update
Sid is a rolling dsitribution which contains the latest packages.
-- Cinaed
Is buster the most recent debian version for Raspberry Pi? This would be much
much much
easier if you had something more modern. Then, you could actually just `apt
install
gnuradio gr-osmosdr` to get a GNU Radio 3.8.