Re: [Discuss-gnuradio] Successful installation of GNURadio 3.6.4.1 on Window XP and Windows 8

2017-07-05 Thread Bhaskar11
I've been out of touch with this work for some years, but find that many
are still searching for the drivers referred to in this guide. As a help to
all, I've uploaded all these drivers to a shared folder on Google Drive
here: https://drive.google.com/open?id=0Byk3JPiq4KUKY3B1enR6djAyX1k

I hope this will remain as an active archive for many years to come, even
if the original driver links break.

If I can make time, I hope someday to update these instructions for working
under Windows 10 -- if it has not already been done by then! :)

B.


On Thu, Dec 26, 2013 at 9:40 PM, Bhaskar11 <niceguy...@gmail.com> wrote:

> *After much experimentation I have finally found a way to successfully
> install and fully run GRC 3.6.4.1 both under Windows XP and Windows 8.* I
> presume it should therefore work equally well under Vista and 7.
>
> First a few comments on the common causes of problems that most people
> have had:
>
> a. It is critical to have the correct *matching* and *complete* versions
> of the various required libraries. Most installations instructions online
> fail because of this reason. The Ettus installation instructions officially
> recommended on GNURadio website and provided here
> <http://code.ettus.com/redmine/ettus/projects/uhd/wiki/GNURadio_Windows> fail
> now because many of the original binary versions referred to are no longer
> available. Hence those instructions are now outdated and should be replaced
> by the instructions provided in this email.
>
> b. Although it is possible to successfully install GNURadio binaries for
> versions 3.7.x, none of them include runtime DLLs for WX GUI blocks. Hence
> these blocks are not displayed, and so most of the example files available
> cannot be used as they need WX GUI blocks. Moreover, some of the QT GUI
> blocks do not work in certain versions. Since I do not know how to make
> these binaries, I request those who have created these version 3.7.x
> Windows binaries to repack them so that we can run the latest versions of
> GNURadio in Windows. Until that is done, there is no point trying to
> install those versions.
>
> c. Only GNURadio version 3.6.x binaries have WX GUI blocks. But versions
> 3.6.2 does not allow moving the blocks. Only 3.6.4.1 is usable, and works
> perfectly well for all available examples tested so far including all QT
> GUI and WX GUI blocks.
>
> d. The required Python libraries versions are available only for Python
> version 2.7.3 and are NOT all available for versions 2.7.6 or above, or at
> least I could not find them online. Hence we have to use libraries
> compatible only with Python 2.7.3.
>
> e. Some library versions have their quirks or bugs. For example PyGTK
> 2.24.0 does not allow you to add blocks in GRC. Only version PyGTK 2.24.2
> works ok. Also wxPython binary called 
> "wxPython2.8-win32-unicode-2.8.12.1-py27"
> just does not work, but the same version but different binary called
> "wxPython-2.8.12.1.win32-py2.7" works correctly. Most online instructions
> do not mention the need for "wxPython-common" library, which is absolutely
> necessary. Also some odd problems such as this
> <http://gnuradio.4.n7.nabble.com/Windows-install-guide-from-Ettus-Research-missing-important-note-td44754.html>
> cease to exist when the correct libraries are matched.
>
> f. In the instructions below I have listed all the correct working
> libraries and binaries with links from which to download them. Please use
> only the binaries from these links and install them in the sequence
> provided. Other versions or binaries may not work. Keep all default options
> unless otherwise specified here. If you have problems working with the
> instructions below, check your binaries, and ensure that you are doing a
> clean install.
>
> Finally, please share your experiences with success and failures on this
> list so that others may benefit.
>
> *Instructions to install GNURadio in Windows XP and Windows 8:*
>
> 1. Uninstall all earlier installations and libraries of GNURadio and
> Python and their add-ons. Ensure that the GNURadio directory and Python
> directory are entirely removed by the uninstalls.
> For Windows XP GNURadio default directory is: C:\Program Files\gnuradio
> For Windows 8 it is: C:\Program Files (x86)\gnuradio
> For all platforms the Python default directory is: C:\Python27
> Both the GNURadio and Python directories should be non-existent. If they
> still exist, then delete them and reboot. We want as clean an install as
> possible.
>
> 2. Download "Microsoft Visual C++ 2010 Redistributable Package (x86)" from
> here <http://www.microsoft.com/en-us/download/details.aspx?id=> and
> install "vcredist_x86".
> If it says a copy is a

Re: [Discuss-gnuradio] Successful installation of GNURadio 3.6.4.1 on Window XP and Windows 8

2017-07-05 Thread Bhaskar11
I've uploaded them on Google Drive here:
https://drive.google.com/open?id=0Byk3JPiq4KUKWWlPTTdjUzRKSkk

B.

On Thu, Nov 13, 2014 at 3:17 AM, sollo  wrote:

> I also have this problem.
> Could you send me that two modules file?
>
> Thanks
>
>
>
> --
> View this message in context: http://gnuradio.4.n7.nabble.
> com/Successful-installation-of-GNURadio-3-6-4-1-on-Window-
> XP-and-Windows-8-tp45545p51304.html
> Sent from the GnuRadio mailing list archive at Nabble.com.
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


Re: [Discuss-gnuradio] GNU Radio 3.6.4.1 Windows 7 Install - Wx UI Scope Sink Freeze

2014-02-17 Thread Bhaskar11
a. The No such file or directory suggests a paths problem.

b. The Permission denied suggests an access rights problem. Try logging
in with Administrator rights. Windows 7 onwards is very picky with rights
issues.

c. The TypeError: (No array-type handler for type class
'ctypes.c_ulong' suggests a conflict of library versions.


Some suggested steps to fix:

1. Start with a clean install. Undo all the changes you made with Notepad
and directory renaming. Unintall Python, GNURadio, etc. Reboot.

Check that all Python, GNURadio and related directories are empty,
otherwise delete manually. Reboot.

2. Login with full Administrator rights. Now install of Python, GNURadio,
etc. with the exact versions recommended in the Successful installation of
GNURadio 3.6.4.1 on Window XP and Windows 8 thread.

Do not make any manual changes with Notepad, etc.

3. Check your paths. Did you set the paths correctly in systems variables
and not user variables?

Run a cmd window and type SET to check all the environment variables
for the PYTHONPATH and GRC_BLOCKS_PATH and PATH contents.

Correct the paths if needed.

4. Run your code with full Administrator rights.

5. If WX UI Scope Sink still freezes, check if other WX widgets work ok.
If they are ok, then try to change the WX UI Scope Sink settings.

Let us know what works. Good luck! :)

B



On Thu, Feb 6, 2014 at 4:47 PM, Tom Rondeau t...@trondeau.com wrote:

 On Wed, Jan 29, 2014 at 4:51 PM, Carl Allen carl.alle...@gmail.com
 wrote:
  Hello,
 
  I am new to GNU Radio and I followed the new windows install directions
  listed in the thread Successful installation of GNURadio 3.6.4.1 on
 Window
  XP and Windows 8  for my Windows 7 machine (intel 64 bit OS).
  Everything
  installed okay except when I created a simple chain in the gnu
  radio-companion (signal source, throttle, and WX UI Scope Sink) the WX
 GUI
  Scope Sink freezes before plotting anything.
 
  I followed the directions mentioned in WX GUI Scope frozen and error-msg
  gr_vmcircbuf_default_factory: Invalid argument thread with no success.
  Namely 1) I created C:\Users\myname\.gnuradio\config.conf in notepad
 with
   [wxgui] , style = nongl  2) renamed the openGL file folders in
  C:\Python27\Lib\site-packages\ directory.
 
  Not sure if this is related, but I can not run the gnuradio-companion.py
  from the command prompt.  In order to run the script I have to open it
 run
  it from the python IDE.
 
  Below I included the messages from the GNU Radio Companion and the
 WxPython
  window below.  The error message listed in the wxPython window was:
TypeError: (No array-type handler for type class 'ctypes.c_ulong'
  (value: c_ulong(0L)) registered, OpenGL.converters.CallFuncPyConverter
  object at 0x02F8E730)
 
  Note that the WxPython message is the same message posted in the thread
  Gnuradio 3.7.2 Windows?.  I could not find a resolution to this
 problem in
  the archives or by searching the net so any assistance would be
 appreciated.
 
  Thank you,
 
  Carl


 Hi Carl,

 Any progress on this problem? It would be nice to get an answer, but
 I'm afraid it's going to take someone who understands Windows better
 than I do. Not being able to run gnuradio-companion from the command
 line suggests a bigger problem, possibly related to paths, which might
 be the cause of something.

 Tom

 ___
 Discuss-gnuradio mailing list
 Discuss-gnuradio@gnu.org
 https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


Re: [Discuss-gnuradio] wxGUI libraries in the GRC

2014-02-17 Thread Bhaskar11
Hi Anusha,

The Windows binaries for GRC version 3.7.2.1 do not have WX GUI stuff. You
have to install an earlier version of GRC.

Please see:
https://lists.gnu.org/archive/html/discuss-gnuradio/2013-12/msg00497.html for
a discussion on this and how to install a working version under Windows.

B.



On Fri, Jan 31, 2014 at 4:53 PM, Tom Rondeau t...@trondeau.com wrote:

 On Thu, Jan 30, 2014 at 6:48 PM, Yarlagadda, Anusha (337G)
 anusha.yarlaga...@jpl.nasa.gov wrote:
  I just noticed I don't have QT FFT sink
  http://i.imgur.com/RfpwDOP.png
  Also can you please suggest what OS is recommended to have my USRP up
 and running without any glitches. If Linux is recommended I don't mind
 getting a linux system and what kind of system do I need(memory, storage??)
  Thanks

 But you do have a QT GUI Frequency Sink. Same thing.

 Tom


  -Original Message-
  From: 
  discuss-gnuradio-bounces+anusha.yarlagadda=jpl.nasa@gnu.org[mailto:
 discuss-gnuradio-bounces+anusha.yarlagadda=jpl.nasa@gnu.org] On
 Behalf Of Yarlagadda, Anusha (337G)
  Sent: Thursday, January 30, 2014 3:29 PM
  To: Marcus Müller; discuss-gnuradio@gnu.org
  Subject: Re: [Discuss-gnuradio] wxGUI libraries in the GRC
 
  Thank you.
  I don't have WX and have only QT Library under Instrumentation.
 Maybe that's a windows issue?
  http://i.imgur.com/RfpwDOP.png
  As you have suggested I will replace WX blocks with QT blocks.
 
  Thanks for your help,
  Anusha
 


___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


Re: [Discuss-gnuradio] Successful installation of GNURadio 3.6.4.1 on Window XP and Windows 8

2014-01-10 Thread Bhaskar11
Hi Tom,

Thanks for the suggestion! I have updated the wiki by adding a link to the
email thread. :)

But I wonder if it it appropriate to include the instructions directly in
the wiki? I will be happy to do it and update it as and when I have
anything to add. I just need to know if there is are guidelines for this
sort of thing, or whether I can ask someone who oversees the overall wiki
content.

B



On Thu, Jan 9, 2014 at 10:10 PM, Tom Rondeau t...@trondeau.com wrote:

 On Mon, Jan 6, 2014 at 9:19 AM, Bhaskar11 niceguy...@gmail.com wrote:
  Hi Tom,
 
  1. Thanks for adding the link in the WindowsInstall wiki.
 
  I note that the link has been added in the section on Building on
 Windows
  with Native Tools where it is surely relevant for the dependencies that
 I
  discovered.
 
  But my instructions are intended for installing with pre-built binaries,
 and
  are mainly aimed at users who are *not* able to build natively, and so
 would
  never look under that section.
 
  For such users it will be very useful if you can add a link in the
  Pre-built Binaries section right where the link to the Ettus Research
 site
  is made. It can be added as an update or a caveat to the Ettus
 instructions
  link.
 
  2. As an addendum to my main post, I have found that only one UHD driver
  works correctly with GRC 3.6.4.1. under Windows XP and Windows 8. And
 that
  is version 3.5.0 (file name uhd_003.005.000-release_Win32) available
 from
  here.
 
  I will share a more detailed update on the UHD driver compatibility and
  error messages in a separate post. But I have included this info here for
  completeness of this thread.
 
  B

 Bhaskar,

 Once again, thanks for your help. With the gnuradio.org wiki, you
 know, anyone can get an account and edit the wiki, so with someone
 like you who's actually been through this process, it'd be great if
 you could make these changes yourself to help keep us all honest and
 up to date!

 Thanks!

 Tom



  On Mon, Dec 30, 2013 at 9:29 PM, Tom Rondeau t...@trondeau.com wrote:
 
  Bhaskar,
 
  Thanks for your effort on not only getting GNU Radio working on
  Windows but also providing us with the steps you took to get there.
  That could be really helpful to a lot of people. I have made a link on
  our WindowsInstall wiki to point to your email for other people
  looking for help.
 
  Please note, though, that we've tried to make it very clear that
  Windows is not a fully supported OS. None of the core developers can
  really test and build on Windows, and we rely on patches and feedback
  like you've provided from the community. We do our best to keep things
  working cross-platform, but as you've experienced, as versions change
  (both GNU Radio and it's dependencies), this is a serious project.
 
  Tom
 
 
  On Thu, Dec 26, 2013 at 11:10 AM, Bhaskar11 niceguy...@gmail.com
 wrote:
   After much experimentation I have finally found a way to successfully
   install and fully run GRC 3.6.4.1 both under Windows XP and Windows
 8. I
   presume it should therefore work equally well under Vista and 7.
  
   First a few comments on the common causes of problems that most people
   have
   had:
  
   a. It is critical to have the correct *matching* and *complete*
 versions
   of
   the various required libraries. Most installations instructions online
   fail
   because of this reason. The Ettus installation instructions officially
   recommended on GNURadio website and provided here fail now because
 many
   of
   the original binary versions referred to are no longer available.
 Hence
   those instructions are now outdated and should be replaced by the
   instructions provided in this email.
  
   b. Although it is possible to successfully install GNURadio binaries
 for
   versions 3.7.x, none of them include runtime DLLs for WX GUI blocks.
   Hence
   these blocks are not displayed, and so most of the example files
   available
   cannot be used as they need WX GUI blocks. Moreover, some of the QT
 GUI
   blocks do not work in certain versions. Since I do not know how to
 make
   these binaries, I request those who have created these version 3.7.x
   Windows
   binaries to repack them so that we can run the latest versions of
   GNURadio
   in Windows. Until that is done, there is no point trying to install
   those
   versions.
  
   c. Only GNURadio version 3.6.x binaries have WX GUI blocks. But
 versions
   3.6.2 does not allow moving the blocks. Only 3.6.4.1 is usable, and
   works
   perfectly well for all available examples tested so far including all
 QT
   GUI
   and WX GUI blocks.
  
   d. The required Python libraries versions are available only for
 Python
   version 2.7.3 and are NOT all available for versions 2.7.6 or above,
 or
   at
   least I could not find them online. Hence we have to use libraries
   compatible only with Python 2.7.3.
  
   e. Some library versions have their quirks or bugs. For example PyGTK
   2.24.0
   does not allow you to add blocks in GRC

Re: [Discuss-gnuradio] Successful installation of GNURadio 3.6.4.1 on Window XP and Windows 8

2014-01-06 Thread Bhaskar11
Hi Tom,

1. Thanks for adding the link in the WindowsInstall wiki.

I note that the link has been added in the section on Building on Windows
with Native Tools where it is surely relevant for the dependencies that I
discovered.

But my instructions are intended for installing with pre-built binaries,
and are mainly aimed at users who are *not* able to build natively, and so
would never look under that section.

For such users it will be very useful if you can add a link in the
Pre-built Binaries section right where the link to the Ettus Research
site is made. It can be added as an update or a caveat to the Ettus
instructions link.

2. As an addendum to my main post, I have found that only one UHD driver
works correctly with GRC 3.6.4.1. under Windows XP and Windows 8. And that
is version 3.5.0 (file name uhd_003.005.000-release_Win32) available from
herehttp://files.ettus.com/binaries/uhd_stable/releases/uhd_003.005.000-release/uhd_003.005.000-release_Win32.exe
.

I will share a more detailed update on the UHD driver compatibility and
error messages in a separate post. But I have included this info here for
completeness of this thread.

B



On Mon, Dec 30, 2013 at 9:29 PM, Tom Rondeau t...@trondeau.com wrote:

 Bhaskar,

 Thanks for your effort on not only getting GNU Radio working on
 Windows but also providing us with the steps you took to get there.
 That could be really helpful to a lot of people. I have made a link on
 our WindowsInstall wiki to point to your email for other people
 looking for help.

 Please note, though, that we've tried to make it very clear that
 Windows is not a fully supported OS. None of the core developers can
 really test and build on Windows, and we rely on patches and feedback
 like you've provided from the community. We do our best to keep things
 working cross-platform, but as you've experienced, as versions change
 (both GNU Radio and it's dependencies), this is a serious project.

 Tom


 On Thu, Dec 26, 2013 at 11:10 AM, Bhaskar11 niceguy...@gmail.com wrote:
  After much experimentation I have finally found a way to successfully
  install and fully run GRC 3.6.4.1 both under Windows XP and Windows 8. I
  presume it should therefore work equally well under Vista and 7.
 
  First a few comments on the common causes of problems that most people
 have
  had:
 
  a. It is critical to have the correct *matching* and *complete* versions
 of
  the various required libraries. Most installations instructions online
 fail
  because of this reason. The Ettus installation instructions officially
  recommended on GNURadio website and provided here fail now because many
 of
  the original binary versions referred to are no longer available. Hence
  those instructions are now outdated and should be replaced by the
  instructions provided in this email.
 
  b. Although it is possible to successfully install GNURadio binaries for
  versions 3.7.x, none of them include runtime DLLs for WX GUI blocks.
 Hence
  these blocks are not displayed, and so most of the example files
 available
  cannot be used as they need WX GUI blocks. Moreover, some of the QT GUI
  blocks do not work in certain versions. Since I do not know how to make
  these binaries, I request those who have created these version 3.7.x
 Windows
  binaries to repack them so that we can run the latest versions of
 GNURadio
  in Windows. Until that is done, there is no point trying to install those
  versions.
 
  c. Only GNURadio version 3.6.x binaries have WX GUI blocks. But versions
  3.6.2 does not allow moving the blocks. Only 3.6.4.1 is usable, and works
  perfectly well for all available examples tested so far including all QT
 GUI
  and WX GUI blocks.
 
  d. The required Python libraries versions are available only for Python
  version 2.7.3 and are NOT all available for versions 2.7.6 or above, or
 at
  least I could not find them online. Hence we have to use libraries
  compatible only with Python 2.7.3.
 
  e. Some library versions have their quirks or bugs. For example PyGTK
 2.24.0
  does not allow you to add blocks in GRC. Only version PyGTK 2.24.2 works
 ok.
  Also wxPython binary called wxPython2.8-win32-unicode-2.8.12.1-py27
 just
  does not work, but the same version but different binary called
  wxPython-2.8.12.1.win32-py2.7 works correctly. Most online
 instructions do
  not mention the need for wxPython-common library, which is absolutely
  necessary. Also some odd problems such as this cease to exist when the
  correct libraries are matched.
 
  f. In the instructions below I have listed all the correct working
 libraries
  and binaries with links from which to download them. Please use only the
  binaries from these links and install them in the sequence provided.
 Other
  versions or binaries may not work. Keep all default options unless
 otherwise
  specified here. If you have problems working with the instructions below,
  check your binaries, and ensure that you are doing a clean install

[Discuss-gnuradio] Successful installation of GNURadio 3.6.4.1 on Window XP and Windows 8

2013-12-26 Thread Bhaskar11
*After much experimentation I have finally found a way to successfully
install and fully run GRC 3.6.4.1 both under Windows XP and Windows 8.* I
presume it should therefore work equally well under Vista and 7.

First a few comments on the common causes of problems that most people have
had:

a. It is critical to have the correct *matching* and *complete* versions of
the various required libraries. Most installations instructions online fail
because of this reason. The Ettus installation instructions officially
recommended on GNURadio website and provided
herehttp://code.ettus.com/redmine/ettus/projects/uhd/wiki/GNURadio_Windows
fail
now because many of the original binary versions referred to are no longer
available. Hence those instructions are now outdated and should be replaced
by the instructions provided in this email.

b. Although it is possible to successfully install GNURadio binaries for
versions 3.7.x, none of them include runtime DLLs for WX GUI blocks. Hence
these blocks are not displayed, and so most of the example files available
cannot be used as they need WX GUI blocks. Moreover, some of the QT GUI
blocks do not work in certain versions. Since I do not know how to make
these binaries, I request those who have created these version 3.7.x
Windows binaries to repack them so that we can run the latest versions of
GNURadio in Windows. Until that is done, there is no point trying to
install those versions.

c. Only GNURadio version 3.6.x binaries have WX GUI blocks. But versions
3.6.2 does not allow moving the blocks. Only 3.6.4.1 is usable, and works
perfectly well for all available examples tested so far including all QT
GUI and WX GUI blocks.

d. The required Python libraries versions are available only for Python
version 2.7.3 and are NOT all available for versions 2.7.6 or above, or at
least I could not find them online. Hence we have to use libraries
compatible only with Python 2.7.3.

e. Some library versions have their quirks or bugs. For example PyGTK
2.24.0 does not allow you to add blocks in GRC. Only version PyGTK 2.24.2
works ok. Also wxPython binary called
wxPython2.8-win32-unicode-2.8.12.1-py27 just does not work, but the same
version but different binary called wxPython-2.8.12.1.win32-py2.7 works
correctly. Most online instructions do not mention the need for
wxPython-common library, which is absolutely necessary. Also some odd
problems such as
thishttp://gnuradio.4.n7.nabble.com/Windows-install-guide-from-Ettus-Research-missing-important-note-td44754.htmlcease
to exist when the correct libraries are matched.

f. In the instructions below I have listed all the correct working
libraries and binaries with links from which to download them. Please use
only the binaries from these links and install them in the sequence
provided. Other versions or binaries may not work. Keep all default options
unless otherwise specified here. If you have problems working with the
instructions below, check your binaries, and ensure that you are doing a
clean install.

Finally, please share your experiences with success and failures on this
list so that others may benefit.

*Instructions to install GNURadio in Windows XP and Windows 8:*

1. Uninstall all earlier installations and libraries of GNURadio and Python
and their add-ons. Ensure that the GNURadio directory and Python directory
are entirely removed by the uninstalls.
For Windows XP GNURadio default directory is: C:\Program Files\gnuradio
For Windows 8 it is: C:\Program Files (x86)\gnuradio
For all platforms the Python default directory is: C:\Python27
Both the GNURadio and Python directories should be non-existent. If they
still exist, then delete them and reboot. We want as clean an install as
possible.

2. Download Microsoft Visual C++ 2010 Redistributable Package (x86) from
here http://www.microsoft.com/en-us/download/details.aspx?id= and
install vcredist_x86.
If it says a copy is already installed and offers to repair it, and accept
to repair. If it says a later version is already installed, then accept to
close.

3. Download and install python-2.7.3.msi from
herehttp://www.python.org/ftp/python/2.7.3/python-2.7.3.msi
.

4. Download and install lxml-3.0.2.win32-py2.7 from
herehttps://pypi.python.org/packages/2.7/l/lxml/lxml-3.0.2.win32-py2.7.exe#md5=a3863518b39bb260218fa6048247e0da
.

5. Download and install numpy-1.7.1-win32-superpack-python2.7 from
herehttp://garr.dl.sourceforge.net/project/numpy/NumPy/1.7.1/numpy-1.7.1-win32-superpack-python2.7.exe
.

6. Download and install PyQt-Py2.7-x86-gpl-4.9.6-1 from
herehttp://kaz.dl.sourceforge.net/project/pyqt/PyQt4/PyQt-4.9.6/PyQt-Py2.7-x86-gpl-4.9.6-1.exe
.
(Note: Keep all default options. You do NOT need to change anything.)

7. Download and install PyQwt-5.2.1-py2.7-x32-pyqt4.9.6-numpy1.7.1 from
here http://www.lfd.uci.edu/~gohlke/pythonlibs/#pyqwt.

8. Download and install Cheetah-2.4.4.win32-py2.7 from
herehttp://www.lfd.uci.edu/~gohlke/pythonlibs/#cheetah
.

9. Download and install