Re: Gnuradio 3.8 on a Raspberry pi 4 B?

[address@hidden]

apologies to the list then, I was not aware of the use of RPi as 
desktop computer, and have always been obsessed with optimization
of resources for embedded systems. Most probably for a desktop use,
a sub-optimal binary distribution such as Raspbian is best suited indeed,
as we find daily on our personal computers.

JM

--
JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe,
25000 Besancon, France

May 29, 2020 4:56 PM, "Glen Langston" <glen.i.langston@gmail.com> wrote:

> Thanks for your explanation.
> 
> ssh-ing in as root did work fine.
> 
> I find that the rtl_ programs do work, like rtl_fm.
> 
> I also understand your approach to embedded real-time applications.
> 
> This probably works particularly well for the PlutoSDR. 
> 
> My goal is for student use, where they are particularly graphical
> user interface aware.
> 
> Best regards
> 
> Glen
> 
>> On May 29, 2020, at 1:57 AM, jean-michel.friedt@femto-st.fr wrote:
>> 
>> It is indeed my belief that there is no point in running a graphical user
>> interface on an embedded system, much less a windowing system. If an embedded
>> board is supposed to interact with a user, a Qt5 or SDL dedicated interface
>> will be much lighter and efficient than a X-Window server and a window 
>> manager
>> client.
>> 
>> This is the reason for providing the examples at the end of the tutorial
>> where a Non GUI flowgraph is generated, the resulting Python script sent to
>> the embedded board and running there, possibly streaming the output (in my
>> example 0-MQ) to a client. In the case of gr-acars, I just fetch periodically
>> the log-file from the RPi4 to the host computer for analysis.
>> 
>> Nevertheless if you want to go in the windowing system direction, Buildroot
>> seems to provide Xorg support:
>> 
>> make menuconfig
>> Target packages -> Graphic libraries and applications -> X.org X Window 
>> System
>> 
>> I have never used nor tested, so I have no idea how much space/how long it 
>> takes
>> to compile.
>> 
>> There is no binary package management system with buildroot: the whole 
>> point, which
>> makes is different from OpenEmbedded/Yocto, is to generate a custom minimal
>> image with only the needed tools and not compile all possible binary packages
>> (the disk size difference being about 10-fold, with about 8 GB needed for
>> buildroot when my attempt at completing the OpenEmbedded system ended at 
>> about
>> 80 GB and many unnecessary binary packages).
>> 
>> The default network configuration is to fetch the IP address from a DHCP 
>> server.
>> Otherwise add an etc/network/interfaces entry in the output/target directory
>> of buildroot with the static IP configuration, and
>> make
>> to re-generate sdcard.img including this configuration file. Similarly if the
>> usr/share/uhd/images binary files are needed: copy in output/target and make.
>> 
>> JM
>> 
>> --
>> JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe,
>> 25000 Besancon, France
>> 
>> May 29, 2020 3:33 AM, "Glen Langston" <glen.i.langston@gmail.com> wrote:
>> 
>>> Hi
>>> 
>>> Thanks for your help.
>>> 
>>> I’ve written the image to an SDCARD and the PI4 boots to
>>> the command line prompt. The password is accepted and
>>> I’ve looked around.
>>> 
>>> Gnuradio seems to be installed, but not the xwindow system.
>>> 
>>> How do you use gnuradio-companion etc?
>>> 
>>> I could not find “xstartup” or some such program.
>>> 
>>> Thanks
>>> 
>>> Glen
>> 
>> On May 24, 2020, at 3:59 PM, jean-michel.friedt@femto-st.fr wrote:
>> 
>> I have uploaded http://jmfriedt.org/sdcard.img
>> my Buildroot image generated for RPi4 that I have been
>> using daily for the last 2 months, so pretty sure it is
>> working. Actually it is 1.1 GB because of lapack needed
>> for gnss-sdr but GNU Radio 3.8/Python3 will only require
>> about 500 MB.
>> Gwenhael Goavec-Merou ported all GNU Radio related software/libraries
>> to Buildroot: the missing parts for gnss-sdr are found at
>> https://github.com/oscimp/PlutoSDR in the for_next branch.
>> 
>> root passwd=root, no user account, USRP FPGA images to be added
>> in usr/share/uhd/images manually if libuhd is needed. Tested with
>> RTL-SDR DVB-T dongle, PlutoSDR (gr-iio) and B210.
>> 
>> JM
>> 
>> --
>> JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe,
>> 25000 Besancon, France
>> 
>> May 24, 2020 9:51 PM, "Glen I Langston" <glen.i.langston@gmail.com> wrote:
>> 
>> Hello
>> 
>> I’ve been a great proponent of gnuradio, but I’m finding in
>> increasing difficult to do anything new, as installation of 3.8 is
>> essentially impossible for most people.
>> 
>> I’ve written and built my own python modules and C++ blocks.
>> 
>> However, despite months of trying now, I can not get 3.8 to install
>> on a raspberry pi.
>> 
>> Has anyone achieved 3.8 on a raspberry pi?
>> 
>> If so can you please save the entire OS, gzip compressed and put it
>> online somewhere. It will probably be about 3 GB compressed.
>> 
>> Thanks
>> 
>> Glen
>> 
>> Note that there are many many (too many) different guides on line
>> 
>> 1) apt-get
>> 
>> 2) pybombs
>> 
>> 3) git clone then build
>> 
>> each one fails in a different way.