The Install tab of the Select Options page includes:
A table that displays the release name, the installation directory, and the installed components for each release of Sun Studio software installed on the system where you are running the installer.
The Missing prerequisites field, which tells you whether the system is missing any of the prerequisite software and lets you install any missing software by clicking Update. The field does not report the absence of the patches required by the JDK software, and the installer does not install them if they are missing.
The Installation directory field, which displays the default installation directory (/opt on Solaris platforms and /opt/sun on Linux platforms) and lets you change the installation directory by typing a directory path. If you have previously installed some components of the Sun Studio 12 software, the Installation directory field displays that installation directory, and the installer will install additional components in the same directory.