The cluster table of contents file, .clustertoc, is an ASCII file that describes a hierarchical view of a software product. A .clustertoc file is required for the base OS product. The file resides in the top-level directory containing the product.

The hierarchy described by .clustertoc can be of arbitrary depth, although the initial system installation programs assume that it has three levels. The hierarchy is described bottom-up, with the packages described in .packagetoc at the lowest layer. The next layer is the cluster layer which collects packages into functional units. The highest layer is the meta-cluster layer which collects packages and clusters together into typical configurations.

The hierarchy exists to facilitate the selection or deselection of software for installation at varying levels of granularity. Interacting at the package level gives the finest level of control over what software is to be installed.

Each entry in the .clustertoc file is a line that establishes the value of a parameter in the following form:

PARAM=value

A line starting with a pound-sign, ``#'', is considered a comment and is ignored.

Parameters are grouped by cluster or meta-cluster. The start of a cluster description is defined by a line of the form:

CLUSTER=value

The start of a meta-cluster description is defined by a line of the form:

METACLUSTER=value

There is no order implied or assumed for specifying the parameters for a (meta-)cluster with the exception of the CLUSTER or METACLUSTER parameter, which must appear first and the END parameter which must appear last.

The following parameters are mandatory:

CLUSTER

The cluster identifier (for example, SUNWCacc). The identifier specified must be unique within the package and cluster identifier namespace defined by a product's .packagetoc and .clustertoc files. The identifiers used are subject to the same constraints as those for package identifiers. These constraints are (from pkginfo(4)):

All characters in the abbreviation must be alphanumeric and the first may not be numeric. The abbreviation is limited to a maximum length of nine characters. install, new, and all are reserved abbreviations.

A cluster must be described before another cluster or meta-cluster may refer to it.

DESC

An informative textual description of the (meta-)cluster's contents. The length of the description supplied may not exceed 256 characters. The text should contain no newlines.

METACLUSTER

The metacluster identifier (for example, SUNWCprog). The identifier specified must be unique within the package and cluster identifier namespace defined by a product's .packagetoc and .clustertoc files. The identifiers used are subject to the same constraints as those for package identifiers. These constraints are (from pkginfo(4)):

All characters in the abbreviation must be alphanumeric and the first may not be numeric. The abbreviation is limited to a maximum length of nine characters. install, new, and all are reserved abbreviations.

Meta-clusters can not contain references to other meta-clusters.

NAME

The full name of the (meta-)cluster. The length of the name string supplied may not exceed 256 characters.

SUNW_CSRMEMBER

Indicates that the package or cluster is a part of the (meta-) cluster currently being described. The value specified is the identifier of the package or cluster. There may be an arbitrary number of SUNW_CSRMEMBER parameters per (meta-)cluster.

VENDOR

The name of the (meta-)cluster's vendor. The length of the vendor string supplied may not exceed 256 characters.

VERSION

The version of the (meta-)cluster. The length of the version string supplied may not exceed 256 characters.

The following parameters are optional:

DEFAULT

Specifies which metacluster within a .clustertoc file should be selected or installed by default. Only one metacluster can be the default.

HIDDEN

Specifies whether a metacluster should be hidden by applications. A hidden metacluster cannot be DEFAULT.

REQUIRED

Specifies which metacluster is required. A required metacluster implies that all of its cluster and package members are not de-selectable (must be installed).

SUNW_CSRMBRIFF

Indicates that the package is to be included dynamically in the (meta-)cluster currently being described. The value of this parameter must follow the following format:

SUNW_CSRMBRIFF=(test test_arc)package

This line is converted into a SUNW_CSRMEMBER entry at media installation time if the test provided matches the platform on which the media is being installed. There may be zero or more SUNW_CSRMBRIFF parameters per (meta-)cluster.

SUNW_CSRMBRIFF=(test value)package

where the the test is either the builtin test of "platform" or a shell script which returns shell true (0) or shell false (1) depending on the tests being performed in the script. value is passed to the test as the first argument and can be used to create a script that tests for multiple hardware objects. Finally package is the package that is included in the final .clustertoc file as a SUNW_CSRMEMBER. See parse_dynamic_clustertoc(1M) for more information about the scripts.

parse_dynamic_clustertoc(1M), cdtoc(4), order(4), packagetoc(4), pkginfo(4)

The current implementation of the initial system installation programs depend on the .clustertoc describing three required meta-clusters for the base OS product:

SUNWCall

Contains all of the software packages in the OS distribution.

SUNWCuser

Contains the typical software packages for an end-user of the OS distribution.

SUNWCreq

Contains the bare-minimum packages required to boot and configure the OS to the point of running a multi-user shell.