Puzzled by Code Sourcery path name

Hi,

I want to use Sitara StarterWare on Ubuntu 12.04, 32 bit. On its User Guide, it gives CodeSourcery Lite path:

Linux Code Sourcery arm-none-eabi:
1. Application makefiles invoke library makefiles internally.
2. PATH environment variable should contain the path of the compiler/tool chain.
3. LIB_PATH shell environment variable points to the Code Sourcery installation: Ex:
LIB_PATH=/opt/tools/CodeSourcery/Sourcery_G++_Lite. In case invoking CCSv5 LIB_PATH CCS build variable
must be set.

I download Code Sourcery Lite from Mentor Graphics web site. The installation does not have the above folder name (path). I don't know how to set library path variable now.

Could you tell me how to set the environment variables?

Thanks,