# Uhd\_find\_devices cannot find my B210

**URL:** <https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895>\
**Category:** GNU Radio\
**Created:** [May 5, 2014, 7:54pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895 "2014-05-05T19:54:19Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [May 5, 2014, 7:54pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895/1 "2014-05-05T19:54:19Z")

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Hi,  
I received my B210 this morning and when I run uhd\_find\_devices, it say  
it can’t find any devices.

$ uhd\_find\_devices  
linux; GNU C++ version 4.8.1; Boost\_105300; UHD\_003.005.003-0-unknown

No UHD Devices Found

lsusb shows the device, but the product id is different to what is in  
/lib/udev/rules.d/40-uhd-host.rules

Bus 003 Device 006: ID 2500:0020

So I added a line to the rules file  
SUBSYSTEMS==“usb”, ATTRS{idVendor}==“2500”, ATTRS{idProduct}==“0020”,  
GROUP:=“usrp”, MODE:=“0660”

I reloaded udev, unplugged and replugged in the device, but still  
uhd\_find\_devices can’t locate it.

I have the B210 plugged into a Via VL800 USB 3.0 card. lspci identifies  
it as Device 3483 (rev 01).

What step am i missing?

Thanks,  
Greg

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<div class="post-metadata">

**Author:** ![Greg\_Hulands](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f17d59/32.png) [@Greg\_Hulands](https://www.ruby-forum.com/u/Greg_Hulands)\
**Post date:** [May 5, 2014, 7:59pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895/2 "2014-05-05T19:59:51Z")

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On 05/05/2014 01:52 PM, Greg Hulands wrote:

> 

You need to most recent version of UHD. Support for B210 was introduced  
at 3.5.4 of UHD, and if you’re going to upgrade, you should upgrade to  
the latest.

–  
Marcus L.  
Principal Investigator  
Shirleys Bay Radio Astronomy Consortium

> **[Live Draw HK Tercepat | Result HK | HK Pools | Live HK | HK Prize Hari Ini](https://www.sbrac.org)**
>
> Temukan live draw hk tercepat melalui halaman hk pools yang resmi dan dapatkan result hk prize melalui live hk secara langsung di situs kami.

---

<div class="post-metadata">

**Author:** ![Greg\_Hulands](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f17d59/32.png) [@Greg\_Hulands](https://www.ruby-forum.com/u/Greg_Hulands)\
**Post date:** [May 5, 2014, 8:15pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895/3 "2014-05-05T20:15:14Z")

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I added the Ettus repo and installed 003.007.001 and yet when I run the  
uhd\_find\_devices command it shows the 003.005.003 version.

Do you recommend building from source?

Thanks,  
Greg

---

<div class="post-metadata">

**Author:** ![Greg\_Hulands](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f17d59/32.png) [@Greg\_Hulands](https://www.ruby-forum.com/u/Greg_Hulands)\
**Post date:** [May 5, 2014, 8:24pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895/4 "2014-05-05T20:24:27Z")

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On 05/05/2014 02:13 PM, Greg Hulands wrote:

> I added the Ettus repo and installed 003.007.001 and yet when I run the  
> uhd\_find\_devices command it shows the 003.005.003 version.
> 
> Do you recommend building from source?
> 
> Thanks,  
> Greg

I recommend erasing your installed-from-standard-repos instances of uhd  
and gnuradio _before_ installing the Ettus stuff.

sudo apt-get purge uhd uhd-host  
sudo apt-get purge gnuradio

And _then_ re-do the install-from-Ettus-repos.

–  
Marcus L.  
Principal Investigator  
Shirleys Bay Radio Astronomy Consortium

> **[Live Draw HK Tercepat | Result HK | HK Pools | Live HK | HK Prize Hari Ini](https://www.sbrac.org)**
>
> Temukan live draw hk tercepat melalui halaman hk pools yang resmi dan dapatkan result hk prize melalui live hk secara langsung di situs kami.

---

<div class="post-metadata">

**Author:** ![Greg\_Hulands](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f17d59/32.png) [@Greg\_Hulands](https://www.ruby-forum.com/u/Greg_Hulands)\
**Post date:** [May 5, 2014, 8:57pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895/5 "2014-05-05T20:57:42Z")

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* * *

Discuss-gnuradio mailing list  
removed\_email\_address@domain.invalid  
[https://lists.gnu.org/mailman/listinfo/discuss-gnuradio](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)

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<div class="post-metadata">

**Author:** ![Greg\_Hulands](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/f17d59/32.png) [@Greg\_Hulands](https://www.ruby-forum.com/u/Greg_Hulands)\
**Post date:** [May 5, 2014, 8:27pm UTC](https://www.ruby-forum.com/t/uhd-find-devices-cannot-find-my-b210/240895/6 "2014-05-05T20:27:32Z")

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You seem to have an old, residual version installed. Can you search for  
packets that start with uhd and verify you’ve only got things installed  
that come from the ettus repo?  
Also, after adding the repository, you most probably have to update your  
package cache.

Greetings,  
Marcus