Update the firmware and FPGA images for your device

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

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

when i try to test uhd_usrp_probe

[email protected]:~$ 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

[email protected]:~$ sudo uhd_images_downloader --verbose
Requested install location: /usr/local/share/uhd/images
Images base URL: 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
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: [email protected]

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

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