No idea.  When I do the same thing, /opt/VirtualGL/bin/vglconnect exists.

On 4/18/19 6:45 PM, Yilin Zhu wrote:
> Yes. My step for the setup:
> 
> Install cygwin.
> In cygwin terminal:
> 
>     download 'vglcygsetup' and run it to install VirtualGL package in
>     the popup cygwin setup GUI
> 
>     run 'cygserver-config'
> 
> In windows PowerShell:
> 
>     run 'net start cygserver'
> 
> Close all windows 
> Open a new cygwin terminal:
> 
>     'xinit' to start cygwin/X server
> 
>     in the popup xterm window:
> 
>         'xdpyinfo' and made sure MIT-SHM appears
> 
> In a new cygwin terminal:
> 
>     'vglconnect' and got error
> 
> 
> On Thu, Apr 18, 2019 at 4:32 PM DRC <[email protected]
> <mailto:[email protected]>> wrote:
> 
>     NOTE: You also need to run vglcygsetup from a Cygwin Bash shell, as the
>     User's Guide instructs.
> 
>     On 4/18/19 6:20 PM, marcus wrote:
>     > Thanks for the information! I see why this step is needed previously.
>     > Now I am able to continue and MIT-SHM does appear in the xdpyinfo
>     output.
>     >
>     > For the next part, connecting to the VirtualGL server, I tried to use
>     > the command:
>     >
>     > /opt/VirtualGL/bin/vglconnect /user/@/server/
>     >
>     >
>     > but vglconnect does not exist in that location. There's no /opt
>     > directory to start with. I'm only able to find vglconnect in
>     >
>     
> ./cygdrive/c/Users/username/AppData/Local/Packages/MirrorName/LocalState/rootfs/opt/VirtualGL/bin/.
>     > Also running it gives me 
>     >
>     >     ./vglconnect: line 111: ./vglclient: cannot execute binary file:
>     >     Exec format error
>     >     [VGL] ERROR: vglclient failed to execute.
>     >
>     >
>     > Did I install it wrong or is it something else? Thanks in advance!
>     >
>     >
>     >
>     > Here is the output when I ran vglcygsetup script:
>     >
>     >     $ ./vglcygsetup 
>     >     Fetching setup.ini ...
>     >     Fetching x86_64/VirtualGL-2.3.3-20131014.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.3.90-20140717.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.4-20150126.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.4.1-20150612.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.4.90-20151027.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.5-20160215.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.5.1-20161001.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.5.2-20170302.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.5.90-20180425.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.6-20180824.tar.bz2 ...
>     >     Fetching x86_64/VirtualGL-2.6.1-20190101.tar.bz2 ...
>     >     Fetching Cygwin setup ...
>     >     Launching Cygwin setup ...
>     >     note: Hand installation over to elevated child process.
>     >
>     > and I followed the setup window to install VirtualGL. 
>     >
>     >
>     >
>     > On Thursday, April 18, 2019 at 8:08:07 AM UTC-7, DRC wrote:
>     >
>     >     The CYGWIN environment variable is used to tweak the behavior of
>     >     Cygwin's Unix emulation layer.  It has nothing to do with the
>     PATH.
>     >     However, according to the documentation
>     >     (https://cygwin.com/cygwin-ug-net/using-cygwinenv.html
>     >     <https://cygwin.com/cygwin-ug-net/using-cygwinenv.html>), setting
>     >     CYGWIN=server is apparently no longer necessary.  It was
>     necessary at
>     >     one time in order to fully enable shared memory emulation.
>     >
>     >     On 4/18/19 2:17 AM, marcus wrote:
>     >     > Hi,
>     >     >
>     >     > I'm new to VirtualGL and encounter a problem when
>     configuring the
>     >     > windows client. In ver 2.6.1 doc, there is a step that I got
>     stuck:
>     >     >
>     >     >     5. Add |server| to the |CYGWIN| system environment variable
>     >     (create
>     >     >     this environment variable if it doesn’t already exist)
>     >     >
>     >     >
>     >     >  I'm not very familiar with cygwin so I'm wondering what the
>     'server'
>     >     > path is in this scenario. (I believe 'CYGWIN' variable
>     refers to PATH
>     >     > and i could add it through 'export PATH=$PATH:/path/to/server')
>     >     >
>     >     > Thank you!
>     >
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> -- 
> */
> /*
> */Yilin Zhu (Marcus)/*
> 
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