How do we do programmatically set LD_LIBRARY_PATH for this scenario , mono-service ./AudioRecorder.exe where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable.

[Alejandro Visiedo García]

Change the program to execute for a script! Into the script export LD_LIBRARY_PATH to add the path of the library and then launch the executable file at the end of the script with the params received to the script!

Regards!

> On 13 May 2016, at 18:37, Frank Chang <frankchang91 at gmail.com> wrote:
> 
> How do we do programmatically set LD_LIBRARY_PATH for this scenario?
> 
> mono-service ./AudioRecorder.exe 
> where we are running on Ubuntu Linux 14.06 and AudioRecorder.exe is a C# .NET executable. AudioRecorder.exe requires a shared object named libaudiocontrol.so to perform its duties. This shared object has to be found in the LD_LIBRARY_PATH location.
> 
> We will not have an Ubuntu Linux terminal to run when running in mono-service mode. Instead we need to start an Ubuntu Linux service as shown below:
> 
> Auto-start Checklist for Upstart
> 
> This section is a quick reference to make sure your service is set to automatically start.
> 
> Configuration Checklist
> 
> Make sure the service has a functional Upstart init script located at /etc/init/service.conf
>     The /etc/init/service.conf file should contain a line like start on runlevel [2345] to enable automatic starting after a reboot
>     The /etc/init/service.conf file should also contain a line like respawn to enable the service to respawn after a crash
> Make sure there is no override file for the service: /etc/init/service.override
> (There would be one only if you or another admin made one earlier)
> 
> Stop, then start, the service:
> 
>   sudo initctl stop service
>   sudo initctl start service
> 
> Reboot the server.
> 
>   sudo reboot
> Here is another way make sure your service is set to automatically start.
> 
> Auto-start Checklist for systemd
> 
> This section is a quick reference to make sure your service is set to automatically start.
> 
> Configuration Checklist
> 
> Make sure the service has a functional systemd init script located at /etc/systemd/system/multi-user.target.wants/service.service
> Use the systemctl command to enable the service:
> 
>   sudo systemctl enable service.service
> 
> This should create a symlink in /etc/systemd/system/multi-user.target.wants/ that looks like the following (do NOT create this manually):
> lrwxrwxrwx 1 root root 38 Aug 1 04:43 /etc/systemd/system/multi-user.target.wants/service.service -> /usr/lib/systemd/system/service.service
> 
> This will enable automatic starting after a reboot.
> 
> The /etc/systemd/system/multi-user.target.wants/service.service file should also contain a line like Restart=always under the [Service] section of the file to enable the service to respawn after a crash
> Reload the systemd daemon, followed by a restart of the service:
> 
>   sudo systemctl daemon-reload
>   sudo systemctl restart service.service
> I read in this URL:
> 
> http://stackoverflow.com/questions/10963498/mono-shared-library-under-linux-location that you have to: LD_LIBRARY_PATH=. mono yourapp.exe. How might I do that for a Linux service?
> 
> I also read Why change in LD_LIBRARY_PATH at Runtime dosen't Reflect on the Executable once the Executable gets loaded.
> 
> Could some expert comment on this URL and suggest a potential solution?
> 
> Any help is greatly appreciated.
> 
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