Fedora > WARNING: / partition has insufficient space to install the items selected

Problem

I received the following error, when installing an application on Fedora 15 (Tibco TRA as it happens).

WARNING: / partition has insufficient space to install the items selected.
XXX MB additional space would be needed to install the selected items.

Solution

Create a temp directory that can hold the amount of space required to install the application (e.g. /root/tmp).

Then append the following parameter on to your installation command.
-is:tempdir /root/tmp

See also:
http://publib.boulder.ibm.com/infocenter/iisinfsv/v8r1/index.jsp?topic=/com.ibm.swg.im.iis.productization.iisinfsv.install.doc/topics/iisri_verify_disk_space.html