For any file requiring variations between nodes, oneSIS replaces
the file with a symbolic link pointing to its corresponding path in
/ram. The original file is moved to a file with the same
name, but with a `.default' extension.
At boot time, each node determines its role and uses the version of the file that corresponds to that node's class (see figure 1). Any node not configured to use an alternate file or directory uses the original `.default' file. This technique can be used to achieve different behavior for any node or class of nodes.
root 2008-07-08