Re: [Discuss-gnuradio] Specify Versions of UHD and GRC for PyBombs

[CEL]

Hi Zhonghyuan,

if you don't want the current git master version, chances are you
should just stick with a release from the maint-3.7 branch. Have a look
at the "gnuradio-stable" (instead of gnuradio / gnuradio-default)
recipe. You can specify branches and/or tags with the "gitbranch"
property.

By the way, PyBOMBS is a cool piece of hardware if you're planning to
juggle many prefixes, or you need to do cross-platform development.

If you're on current debian/fedora/gentoo (not really on Ubuntu), you
can just get the latest stable release via your distro's package
management, which will inherently work with your distro's UHD version.
That's the recommended way of using GNU Radio and UHD, unless you need
to modify the source code of UHD or GNU Radio. For end users, our
philosophy is that they shouldn't have to build GNU Radio from source.

If you actually want to use a different UHD than what was shipped with
your distro (e.g. the UHD packages that Ettus offers on their own repo,
or built from source), then yes, you'll have to build GNU Radio
yourself. 

I'm going to stress this again, because people will read this in the
future:
*If you're an end-user and want to work _WITH_ GNU Radio and UHD, just
get a current Linux distro (debian is well-supported, for example), and
install their GNU Radio package.*

In your case, you said you wanted specific versions of GNU Radio and
UHD. So, the procedure I'd personally recommend is the following:

1. (important) uninstall anything GNU Radio and UHD-dependent that was
installed through your operating system's package management. Yes.
Don't skip this step. Any package with "gnuradio", "gr-" or "uhd" in
its name must be uninstalled.
2. install the UHD version you want (and only that) the way you want.
Personally, 
git clone https://github.com/EttusResearch/uhd && cd uhd/host && \
git checkout {the git tag you want} && mkdir build && cd build && \
cmake .. && make -j8 && sudo make install 
makes me happier than using pyBOMBS.
3. install the GNU Radio version you want. 
git clone https://github.com/gnuradio/gnuradio && cd gnuradio && \
git checkout {the git tag you want} && mkdir build && cd build && \
cmake .. && make -j8 && sudo make install 

Done; honestly, for single-installation source builds, you really don't
need PyBOMBS just to build GNU Radio. PyBOMBS is awesome at installing
complete development dependency environments into prefixes, but hey,
you've got a Linux distro, and on debianoids, e.g "apt build-dep
gnuradio" will do the same (but beware, you'll need to remove the
debian-supplied uhd packages afterwards).

Best regards,
Marcus –don't build from source if you don't have to– Müller
On Wed, 2018-11-07 at 15:32 -0600, Zhongyuan Zhao wrote:
> Hi,
> 
> It seems that PyBombs always install the latest version of UHD and GRC. Is 
> there a way to specify older versions in the installation? 
> If the only way is installing from the source, how to make sure the version 
> of UHD work with GRC? 
> Thank you!
> 
> Best Regards,
> Zhongyuan Zhao
> 
> PhD Candidate, 
> Department of Computer Science & Engineering,
> University of Nebraska-Lincoln
> Suite 117, Schorr Center,
> Lincoln, Nebraska 68588-0115
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> Discuss-gnuradio mailing list
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