Sun Java Enterprise System 5 Installation Planning Guide

Shared Components and Sparse Root Zones

Another issue impacting the use of Java ES in a multi-zone environment is that a large number of shared components cannot be installed in sparse root zones because of the read-only file systems in sparse root zones. Hence, those shared components whose base directory is /usr (a directory that by default is shared by the global zone) must be installed in the global zone to be available in a sparse root zone.

The inability to install a number of Java ES shared components in sparse root zones means that to successfully install product components which have dependencies on such shared components into sparse root zones, the shared components must first be installed in the global zone and propagated to non-global zones.