Doubt in Adding hosts

Question

Frienz,
I have installed Oracle 10G Grid control in one RHEL Server,created database and when I tried to add hosts it says like "To add a host target, install the Oracle Management Agent on the host computer you want to manage".
How to start the Management Agent in other servers. Do I need to install Grid software in every machine or only the Management Agent.
Bocz document says like
Download the Linux_Grid_Control_agent_download_10_1_0_6_0.zip file from OTN.
2. Copy the downloaded file to <OMS_HOME>/sysman/agent_download directory.
3. cd <OMS_HOME>/sysman/agent_download
4. unzip Linux_Grid_Control_agent_download_10_1_0_6_0.zip
5. If agent_download.rsp already exists in <OMS_HOME>/sysman/agent_download directory, then rename agent_download.rsp
          ex: mv agent_download.rsp agent_download.rsp.old
6. i) mv agent_download.rsp.bak agent_download.rsp
ii) edit agent_download.rsp and modify s_OMSHost="%s_OMSHost%" and s_OMSPort="%s_OMSPort%" with the correct OMSHost and OMSPort values.(However, even if you are specifying a secure Management Service, you must still enter the non-secure port number here)
For eg. s_OMSHost="stadt37.us.oracle.com"
s_OMSPort="4889"
7. If agentDownload.linux already exists in <OMS_HOME>/sysman/agent_download directory, then rename agentDownload.linux
          ex: mv agentDownload.linux agentDownload.linux.old
8. i) mv agentDownload.linux.bak agentDownload.linux
ii) edit agentDownload.linux and modify OMShost=%s_OMSHost% and httpPort=%s_OMSPort% with the correct OMSHost and OMSPort.(However, even if you are specifying a secure Management Service, you must still enter the non-secure port number here)
For eg. OMShost =stadt37.us.oracle.com
httpPort=4889
Pls guide me.
I am new to Grid.

Answer 1

1. You can not add host from OEM console
2. To add a host target, install the Oracle Management Agent on he host computer you want to manage
3. You don't need to install Grid software in every machine, only the Management Agent
4. What Bocz document says is about putting Management Agent distribution kit into centralized repository inside OMS. Usually it is already done during Grid control installation. If not you should install it.
5. After that you can install Management Agent from central repository by downloading it from the target host, see 10g R2 Management Agent Deployment Best Practices on
http://www.oracle.com/technology/products/oem/techinfo.html