Dear All 

I have installed UHD and GNU radio using procedure given in the Ettus webpage. 
https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux.
 

I could find the my USRP connected by command lsusb 
Bus 002 Device 004: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse 
Bus 002 Device 003: ID 03f0:0024 Hewlett-Packard KU-0316 Keyboard 
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 
Bus 001 Device 004: ID 2500:0020 
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 

But when I run command uhd_find_devices : I get following error 
linux; GNU C++ version 5.4.0 20160609; Boost_105800; 
UHD_3.11.0.git-49-g7a06c6f0 
[WARNING] [B200] EnvironmentError: IOError: Could not find path for image: 
usrp_b200_fw.hex 

Using images directory: <no images directory located> 

Set the environment variable 'UHD_IMAGES_DIR' appropriately or follow the below 
instructions to download the images package. 

Please run: 

"/usr/local/lib/uhd/utils/uhd_images_downloader.py" 
No UHD Devices Found 


Please let me how it can be resolved. 

With Best Regards 
Shrishail Hiremath, 
Department of Electronics and Communication Engineering 
National Institute of Technology 
Rourkela, PIN - 769008 
ORISSA, INDIA 
hirema...@nitrkl.ac.in 
Mob:9438503621 
Office:0661-2462459 
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