This message can result from running an old version of the operating system that does not support new hardware, or by running an operating system that is not configured for new hardware. It can also result from incorrectly installed DSIMMs or from a disk problem.
Upgrade your operating system to a version that supports the new hardware or machine architecture. For example, upgrading a SPARCstation 2 (with sun4c kernel architecture) to a SPARCstation 20 (with sun4m kernel architecture) requires an operating system upgrade or reconfiguration.
For more information on upgrades, see the section describing system and device configuration in the Solaris 1.x to Solaris 2.x Transition Guide.