User guide

32 Chapter 3
Installation
Versi o n 3 . 1
Installing the Envivio Linux Kernel
Envivio has developed a specific Linux kernel patch to fix some Linux
kernel bugs.
You must install this patch if you want to use the SDP broadcaster in relay
(see “Using 4Sight as a relay” on page 42) or switcher (see “Stream
Switcher” on page 75) configurations.
WARNING Envivio Linux kernel patch is only valid for Linux version 2.4.18.
Installing the Linux kernel patch
To install the Linux kernel patch, follow these steps:
1. If 4Sight is started, stop it.
2. Enter the following command:
rpm -ivh EnvivioKernel-2.4.18-14Envivio.i386.rpm
3. Go to /usr/Envivio/4Sight/Config and open the file streamingserver.xml
4. Set the forward_announce_messages parameter to true
5. Then reboot
Uninstalling the Linux kernel patch
To uninstall the Linux kernel patch, follow these steps:
1. If 4Sight is started, stop it.
2. Enter the following command:
rpm -e EnvivioKernel