# GR upgrade fail due to UHD

**URL:** <https://www.ruby-forum.com/t/gr-upgrade-fail-due-to-uhd/217036>\
**Category:** GNU Radio\
**Created:** [February 20, 2012, 10:46am UTC](https://www.ruby-forum.com/t/gr-upgrade-fail-due-to-uhd/217036 "2012-02-20T10:46:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [February 20, 2012, 10:46am UTC](https://www.ruby-forum.com/t/gr-upgrade-fail-due-to-uhd/217036/1 "2012-02-20T10:46:31Z")

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Hi!

I have a strange problem with my Linux system. I want to build GNU Radio  
3.5 on Arch Linux. The first thing I install is UHD:

~ ᐅ uhd\_find\_devices  
uhd\_find\_devices: error while loading shared libraries: libuhd.so.003:  
cannot open shared object file: No such file or directory

Now I navigate into my UHD build folder:

~/source/UHD-Mirror/host/build (master ✘)✭ ᐅ ./utils/uhd\_find\_devices  
linux; GNU C++ version 4.6.2 20120120 (prerelease); Boost\_104800;  
UHD\_003.002.003-e83c35c

No UHD Devices Found

- so the build is sane and works fine. However it seems the “sudo make  
install” failed.

~/source/UHD-Mirror/host/build (master ✘)✭ ᐅ ls /usr/local/lib | grep  
uhd  
libgnuradio-uhd-3.5.2git.so  
libgnuradio-uhd-3.5.2git.so.0  
libgnuradio-uhd-3.5.2git.so.0.0.0  
libgnuradio-uhd.so  
libuhd.so  
libuhd.so.003  
libuhd.so.003.002

Does somebody know what the issue is? I assume on of the libraries in  
/usr/share/lib is misplaced. Maybe from an older installation. How can I  
track this issue? GR 3.5 builds incompletely due to this.

Best,  
Marius

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**Author:** ![Marius\_Ciepluch](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bb73d2/32.png) [@Marius\_Ciepluch](https://www.ruby-forum.com/u/Marius_Ciepluch)\
**Post date:** [February 20, 2012, 4:52pm UTC](https://www.ruby-forum.com/t/gr-upgrade-fail-due-to-uhd/217036/2 "2012-02-20T16:52:03Z")

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On 20/02/12 04:45 AM, Marius Ciepluch wrote:

> libgnuradio-uhd-3.5.2git.so
> 
> * * *
> 
> Discuss-gnuradio mailing list  
> [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)

After doing a build/install of both UHD and Gnu Radio, did you:

sudo ldconfig

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**Author:** ![Marius\_Ciepluch](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bb73d2/32.png) [@Marius\_Ciepluch](https://www.ruby-forum.com/u/Marius_Ciepluch)\
**Post date:** [February 20, 2012, 6:32pm UTC](https://www.ruby-forum.com/t/gr-upgrade-fail-due-to-uhd/217036/3 "2012-02-20T18:32:41Z")

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Just to add to what Marcus said:

Make sure to put “/usr/local/lib” in /etc/ld.so.conf, and then run $  
sudo  
ldconfig:

$ sudo echo “/usr/local/lib” \>\> /etc/ld.so.conf  
$ sudo ldconfig

[http://files.ettus.com/uhd\_docs/manual/html/build.html#setup-the-library-path-linux](http://files.ettus.com/uhd_docs/manual/html/build.html#setup-the-library-path-linux)

Cheers,  
Ben

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<div class="post-metadata">

**Author:** ![Marius\_Ciepluch](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bb73d2/32.png) [@Marius\_Ciepluch](https://www.ruby-forum.com/u/Marius_Ciepluch)\
**Post date:** [February 21, 2012, 9:31pm UTC](https://www.ruby-forum.com/t/gr-upgrade-fail-due-to-uhd/217036/4 "2012-02-21T21:31:01Z")

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On 02/20/2012 06:31 PM, Ben H. wrote:

> Cheers,  
> Ben

Hi Ben,

that was my issue. Thanks a lot for the answer.

Best,  
Marius