I am working on a project with a Coral Dev Board Mini which runs "Mendel Linux". When trying to set up a pipeline including webrtc with gstreamer, I found out that some gstreamer plugins are missing in the distribution (nice, webrtc). So I downloaded the source of the Mendel Linux distribution (instructions here) and tried to follow the instructions to (cross) compile it on my Ubuntu 20.04 X86 system.
After getting the source code I can run the system build with
m
which seems to work although in the output there are some errors of the type
/sbin/start-stop-daemon: unable to open pidfile /dev/null (Permission denied)
E: pbuilder: Failed extracting the source
However, I need to build gstreamer which forms part of "packages". When I run
m packages
I get the following error:
cd /media/claus/extssd/dev/mendel/out/target/product/mt8167s_excelsior/obj/mendel-minimal; pdebuild --buildresult /media/claus/extssd/dev/mendel/out/target/product/mt8167s_excelsior/packages/core -- --debbuildopts "--build=full -sa --check-command=lintian --check-option=--profile=mendel" --basetgz /media/claus/extssd/dev/mendel/cache/cross-base.tgz --configfile /media/claus/extssd/dev/mendel/build/pbuilderrc --hookdir /media/claus/extssd/dev/mendel/build/pbuilder-hooks --host-arch arm64 --logfile /media/claus/extssd/dev/mendel/out/target/product/mt8167s_excelsior/mendel-minimal-arm64.log
cp: cannot create regular file '/etc/apt/apt.conf.d/99network-settings': Permission denied
E: /home/claus/.pbuilderrc could not be loaded
make: *** [/media/claus/extssd/dev/mendel/build/packages.mk:149: /media/claus/extssd/dev/mendel/out/target/product/mt8167s_excelsior/.mendel-minimal-pbuilder-arm64] Error 1
There seems to be some permission problem to create /etc/apt/apt.conf.d/99network-settings which should be in /media/claus/extssd/dev/mendel/out/target/product/mt8167s_excelsior/obj/mendel-minimal. I have
(base) claus$ ls -l etc/apt
total 4
drwxrwxr-x 2 claus claus 4096 Apr 14 22:26 apt.conf.d
which seems right to me, but 99network-settings is not created in apt.conf.d. In my /home/claus/.pbuilderrc I have as content the following line:
cp ~/99network-settings /etc/apt/apt.conf.d/
Any idea what might be going wrong here? I could not find more information than the linked "getting started" doc, there are some blog entries, but they seem to describe a previous version.