OCM Preparation - 2

Following steps will create the basic virtual environment to play with.

Download VMware Server and install it. 
Download Oracle Linux Release 5.4 (32-bit) at Oracle Software Delivery Cloud.
Create a virtual machine in VMware Server and install Oracle Linux. Check this out.
Download 11.2.0.3.0 patch set.
Patch ID=10404530. If you are not sure which files to download, Check this out.

Installation Type	Zip File
Oracle Database (includes Oracle Database and Oracle RAC)	p10404530_112030_platform_1of7.zip p10404530_112030_platform_2of7.zip
Oracle Grid Infrastructure (includes Oracle ASM, Oracle Clusterware, and Oracle Restart)	p10404530_112030_platform_3of7.zip
Oracle Database Client	p10404530_112030_platform_4of7.zip
Oracle Gateways	p10404530_112030_platform_5of7.zip
Oracle Examples	p10404530_112030_platform_6of7.zip
Deinstall	p10404530_112030_platform_7of7.zip

Install Oracle Database 11g Enterprise Edition Release 11.2.0.3.0  32-bit (Software Only).
Installation Guides: Oracle Oracle-Base

 Notes:
VNC Server is used.
Resize /dev/shm more than the value you want for MEMORY_MAX_TARGET.
mount -t tmpfs shmfs -o size=1.1G /dev/shm
To change tmpfs value permanently, change /etc/fstab as follows.

#tmpfs /dev/shm tmpfs defaults 0 0
tmpfs /dev/shm tmpfs size=1g 0 0