System Administration Guide: Oracle Solaris 8 Containers

Setting the Machine Name to sun4u

A zonecfg attribute can be used to specify the machine name returned by uname as sun4u, even if the underlying Solaris 10 system is running on an sun4v machine. The setting is shown in How to Configure a solaris8 Branded Zone.

To use this attribute, you must have Solaris 8 Containers patch 128548-07 or higher installed.