# Update the firmware and FPGA images for your device

**URL:** <https://www.ruby-forum.com/t/update-the-firmware-and-fpga-images-for-your-device/242018>\
**Category:** GNU Radio\
**Created:** [May 20, 2015, 2:44pm UTC](https://www.ruby-forum.com/t/update-the-firmware-and-fpga-images-for-your-device/242018 "2015-05-20T14:44:44Z")\
**Posts on this page:** 1\
**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 20, 2015, 2:44pm UTC](https://www.ruby-forum.com/t/update-the-firmware-and-fpga-images-for-your-device/242018/1 "2015-05-20T14:44:44Z")

</div>

hi i am use ubuntu 14.04 and install gnuradio with this command

wget [http://www.sbrac.org/files/build-gnuradio](http://www.sbrac.org/files/build-gnuradio) && chmod a+x  
./build-gnuradio && ./build-gnuradio

when i try to test uhd\_usrp\_probe

user@userr-X455LDB:~$ uhd\_usrp\_probe  
linux; GNU C++ version 4.8.2; Boost\_105400;  
UHD\_003.009.git-171-g51bc00ee

– Opening a USRP2/N-Series device…  
– Current recv frame size: 1472 bytes  
– Current send frame size: 1472 bytes  
Error: RuntimeError:  
Please update the firmware and FPGA images for your device.  
See the application notes for USRP2/N-Series for instructions.  
Expected FPGA compatibility number 11, but got 10:  
The FPGA build is not compatible with the host code build.  
Please run:

“/usr/local/lib/uhd/utils/uhd\_images\_downloader.py”  
“/usr/local/lib/uhd/utils/usrp\_n2xx\_simple\_net\_burner”   
–addr=“192.168.10.2”

i also try sudo uhd\_images\_downloader --verbose

user@userr-X455LDB:~$ sudo uhd\_images\_downloader --verbose  
Requested install location: /usr/local/share/uhd/images  
Images base URL: [files.ettus.com:/binaries/images/](http://files.ettus.com/binaries/images/)  
Images filename: uhd-images\_003.009.git-184-gf2337d6f.zip  
Images checksum: 492f47ed0705b6b63238307f6e20e2a3 (md5)  
Final install location: /usr/local/share/uhd/images  
Copying locally: No  
Checking: /usr/local/share/uhd/images  
Write permission granted on: /usr/local/share/uhd/images  
Using temporary directory: /tmp/tmpbteu5K  
Downloading images from:  
[http://files.ettus.com/binaries/images/uhd-images\_003.009.git-184-gf2337d6f.zip](http://files.ettus.com/binaries/images/uhd-images_003.009.git-184-gf2337d6f.zip)  
Downloading images to:  
/tmp/tmpbteu5K/uhd-images\_003.009.git-184-gf2337d6f.zip  
Downloader raised an unhandled exception: \<urlopen error [Errno -2] Name  
or service not known\>  
Traceback (most recent call last):  
File “/usr/local/bin/uhd\_images\_downloader”, line 306, in main  
print\_progress=True  
File “/usr/local/bin/uhd\_images\_downloader”, line 82, in download  
u = opener.open(images\_url)  
File “/usr/lib/python2.7/urllib2.py”, line 404, in open  
response = self.\_open(req, data)  
File “/usr/lib/python2.7/urllib2.py”, line 422, in \_open  
‘\_open’, req)  
File “/usr/lib/python2.7/urllib2.py”, line 382, in \_call\_chain  
result = func(\*args)  
File “/usr/lib/python2.7/urllib2.py”, line 1214, in http\_open  
return self.do\_open(httplib.HTTPConnection, req)  
File “/usr/lib/python2.7/urllib2.py”, line 1184, in do\_open  
raise URLError(err)  
URLError: \<urlopen error [Errno -2] Name or service not known\>  
If the problem persists, please email the output to: removed\_email\_address@domain.invalid

what can i do?i hope you can help me.  
thanks