Re: BladeRF 2 in GRC3.8

[Marcus Müller]

Hi Jerom,

thanks for keeping us in the loop, I know this is a lot of effort on
your side!

Cheers,
Marcus

On 18.03.20 16:54, Jerom Maas - LR wrote:
> Hi Marcus,
> 
> 
> Thanks for the advice! I guess that the confusing liborc files and the
> strange cmake version are a result of me fumbling around to get
> everything working. I'm going to clear up my installation and try again
> from the start. I'll let you know how it turns out.
> 
> Have a nice day,
> 
> 
> Jerom Maas
> 
> ------------------------------------------------------------------------
> *Van:* Marcus Müller <address@hidden>
> *Verzonden:* woensdag 18 maart 2020 16:40:25
> *Aan:* Jerom Maas - LR; Müller, Marcus (CEL); address@hidden
> *Onderwerp:* Re: BladeRF 2 in GRC3.8
>  
> Hi Jerom,
> 
> now under Ubuntu 18.04:
> 
> On 18.03.20 13:45, Jerom Maas - LR wrote:
>> Hello Marcus,
>> 
>> first of all, I hope that this email reaches you in good health. Thanks
>> for your answer. I've tried to work as cautiously as possible, but it
>> seems that I still have trouble installing gr-osmosdr. I hope that you
>> can help me connecting the last dots.
>> 
>> I install GRC using the ppa:
>> $ sudo add-apt-repository ppa:gnuradio/gnuradio-releases
>> $ sudo apt-get update
>> $ sudo apt install gnuradio
>> 
>> I install LibbladeRF using the ppa:
>> $ sudo add-apt-repository ppa:bladerf/bladerf
> 
> yep, works now. They simply don't have any packages for modern Ubuntu.
> 
>> $ sudo apt-get update
>> $ sudo apt-get install bladerf
>> $ sudo apt-get install libbladerf-dev
>> 
>> Then I've installed two libraries for OsmoSDR:
>> $ sudo apt update
>> $ sudo apt install libosmosdr-dev
>> $ sudo apt-get install librtlsdr-dev
>> 
> 
> That's superfluous unless you want to use the RTL SDR or the very rare
> OsmoSDR hardware.
> 
>> After this, it's time to follow the instructions on 
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__osmocom.org_projects_gr-2Dosmosdr_wiki-23Automated-2Dinstallation&d=DwID-g&c=XYzUhXBD2cD-CornpT4QE19xOJBbRy-TBPLK0X9U2o8&r=FxwOwDihISw27IZqIUL77cVHQ03qpclxjfkd7WoRAZ8&m=jWgz9H_OAI5vUCXhyheDS8b0H2GHTFWhw6LgbrHD1cM&s=kxBwYPhcMKvGKJtjlI_daFelK6EwoIGN5jr8lWwOg08&e=
> 
>> For this, I've used cmake version 3.15.2.
> 
> How did you install that? I'm doing
> 
> wget -O -
> https://urldefense.proofpoint.com/v2/url?u=https-3A__apt.kitware.com_keys_kitware-2Darchive-2Dlatest.asc&d=DwID-g&c=XYzUhXBD2cD-CornpT4QE19xOJBbRy-TBPLK0X9U2o8&r=FxwOwDihISw27IZqIUL77cVHQ03qpclxjfkd7WoRAZ8&m=jWgz9H_OAI5vUCXhyheDS8b0H2GHTFWhw6LgbrHD1cM&s=GGWuu7HQU7ffujQFF7f3U7CCcxPEPSrqA-I_eFtY14s&e=
> 
> 2>/dev/null | sudo apt-key add -
> sudo apt-add-repository 'deb
> https://urldefense.proofpoint.com/v2/url?u=https-3A__apt.kitware.com_ubuntu_&d=DwID-g&c=XYzUhXBD2cD-CornpT4QE19xOJBbRy-TBPLK0X9U2o8&r=FxwOwDihISw27IZqIUL77cVHQ03qpclxjfkd7WoRAZ8&m=jWgz9H_OAI5vUCXhyheDS8b0H2GHTFWhw6LgbrHD1cM&s=ZXBFwwgfnw5kQCmPGqoKIaL2Wlrabeh5n84q-fRsQLE&e=
>  
> bionic main'
> 
> to get the official CMake packages from kitware, but that gives me 3.16,
> so you've got some strange third party installation (?).
> 
>> $ git clone git://git.osmocom.org/gr-osmosdr
>> $ cd gr-osmosdr/
>> $ mkdir build
>> $ cd build/
>> $ cmake ../
> 
> Works! And lists BladeRF as enabled component.
> 
>> After this, I try to do:
>> $ make
> 
> THIS (not later) is the point where I get the linking error.
> That makes a difference; I was assuming some run-time linker/.so loader
> ambiguity, but this simply means gr-osmosdr's CMake scripts aren't
> checking for all they need (maybe that's GNU Radio's fault due to
> changing quite a bit of CMake infrastructure lately, I don't know).
> I should've read more diligently, though; your error message says
> "make", so I shouldn't have guessed it's make install :)
> 
> However, easy to solve:
> 
> sudo apt install liborc-0.4-dev
> 
> After that, `make` runs through without issue.
> 
>> $ sudo make install
>> $ sudo ldconfig
>> 
>> But this is where I meet my error:
>> 
>> make[2]: *** No rule to make target
>> '/usr/lib/x86_64-linux-gnu/liborc-0.4.so', needed by
>> 'lib/libgnuradio-osmosdr.so.0.2.0.0'. Stop.
>> CmakeFiles/Makefile2:177: recipe for target
>> 'lib/CMakeFiles/gnuradio-osmosdr.dir/all' failed
>> make[1]:*** [lib/CMakeFiles/gnuradio-osmosdr.dir/all] Error 2
>> Makefile:140: recipe for target 'all' failed
>> make: *** [all] Error 2
>> 
>> I've read that this means that '/usr/lib/x86_64-linux-gnu/liborc-0.4.so'
>> is not found on my computer, which is indeed the case. In that folder, I
>> do have the files: 
>> liborc-0.4.so.0
> 
> .... that is confusing. There should be no liborc* whatsoever in there
> unless you've installed it.
> 
> So, I'm putting my bets on future problems here on conflicting
> installations. Make sure you don't have conflicting installations if it
> doesn't work after installing liborc-0.4-dev
> 
>> So I decided to do a simple hack, and copied liborc-0.4.so.0 to a new
>> file with the expected name:
>> $ cd /usr/lib/x86_64-linux-gnu/
>> $ sudo cp liborc-0.4.so.0 liborc-0.4.so
> 
> uuuh this probably works? Maybe? I don't recommend it. It's unclear
> where your liborc-0.4.so.0 comes from if liborc isn't installed.
> 
>> When I go back to the previous terminal, it is found that 'make' does
>> not provide any errors anymore, and 'make install'  and 'ldconfig' also
>> work. And when I open GRC, I can find the Osmocom source and sink
>> blocks, which are the ones that I need. So that's good. 
>> 
>> BUT 
>> when I run my GRC flowchart, I get a python error:
>> ModuleNotFoundError: No module named 'osmosdr'
>> 
>> I've spent some time trying to solve this, but I'm not getting any
>> further. I guess that my little hack of renaming liborc was problematic,
>> but then I wouldn't know where to find the original file. 
> 
> Yeah, dropping in random versions of libraries via symlinks has the
> potential to do that.
> However, here, it's most likely you should have run
> 
> cmake -DCMAKE_INSTALL_PREFIX=/usr ..
> 
> instead of `cmake ..`, because otherwise the python libraries simply get
> installed into /usr/local/..., and Python doesn't look there.
> 
> 
> Best regards,
> Marcus