The Sun Fire V240 and 280R are sold without a video card or monitor. To install Oracle 9i and later on a V240 or 280R system, an X-windows environment is required. You can use any X-windows tool, such as Exceed, from a client machine, such as a PC or a Conversant V8/R9 system on the network.
Install Oracle as follows:
DISPLAY="remote machine's IP address":0.0
/usr/openwin/bin/xlock
and verify that the clock displays on the screen of the client system. If the clock is not displayed correctly, check your DISPLAY variable. If an error message indicates that the connection was refused, run the command xhost + on the remote machine that $DISPLAY is set to.