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File Formats platform(4)

NAME

platform - directory of files specifying supported platforms

SYNOPSIS

.platform

DESCRIPTION

The Solaris operating environment release includes the

.platform directory, a new directory on the Solaris CD

image. This directory contains files (created by Sun and

Solaris OEMs) that define platform support. These files are

generically referred to as platform definition files. They

provide a means to map different platform types into a plat-

form group.

Platform definition files in the .platform directory are

used by the installation software to ensure that software appropriate for the architecture of the system will be installed.

Sun provides a platform definition file named

.platform/Solaris . This file is the only one that can

define platform groups to which other platform definition

files can refer. For example, an OEM platform definition

file can refer to any platform group specified in the

Solaris platform definition file.

Other platform definition files are delivered by OEMs. To

avoid name conflicts, OEMs will name their platform defini-

tion file with an OEM-unique string. OEMs should use what-

ever string they use to make their package names unique. This unique string is often the OEM's stock symbol.

Comments are allowed in a platform definition file. A "#"

begins a comment and can be placed anywhere on a line.

Platform definition files are composed of keyword-value

pairs, and there are two kinds of stanzas in the file: plat-

form group definitions and platform identifications.

o Platform group definitions:

The keywords in a platform group definition stanza

are:

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File Formats platform(4)

PLATFORM_GROUP The PLATFORM_GROUP keyword must

be the first keyword in the plat-

form group definition stanza. The value assigned to this keyword is

the name of the platform group,

for example:

PLATFORM_GROUP=sun4c

The PLATFORM_GROUP name is an

arbitrary name assigned to a

group of platforms. However,

PLATFORM_GROUP typically equals

the output of the uname -m com-

mand. PLATFORM_GROUP value cannot

have white space and is limited to 256 ASCII characters.

INST_ARCH The instruction set architecture

of all platforms in the platform

group, for example:

INST_ARCH=sparc

The INST_ARCH keyword value must

be the value returned by the

uname -p command on all platforms

in the platform group.

o Platform identifications:

The keywords in a platform identification stanza

are:

PLATFORM_NAME The PLATFORM_NAME keyword must

be the first keyword in the

platform identification

stanza. The PLATFORM_NAME is

the name assigned to the plat-

form, for example:

PLATFORM_NAME=SUNW,SPARCstation-

5 Typically, this name is the same as the value returned by

the uname -icommand on the

machine, but it need not be

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File Formats platform(4)

the same.

The PLATFORM_NAME value cannot

have white space and is lim-

ited to 256 ASCII characters. If it contains parentheses, it must contain only balanced parentheses. For example. the string "foo(bar)foo" is a valid value for this keyword, but "foo(bar" is not. The other keywords in the

platform identification stanza

can be in any order, as long

as the PLATFORM_NAME keyword

is first.

PLATFORM_ID The value returned by the

uname -i command on the

machine, for example:

PLATFORM_ID=SUNW,SPARCstation-

MACHINE_TYPE The value returned by the

uname -m command on the

machine, for example:

MACHINE_TYPE=sun4c

IN_PLATFORM_GROUP The platform group of which

the platform is a member, for

example:

IN_PLATFORM_GROUP=sun4c

The platform group name must

be specified in the same file

as the platform identification

stanza or in the platform

definition file with the name

.platform/Solaris .

The IN_PLATFORM_GROUP keyword

is optional. A platform

doesn't have to belong to a

platform group. If a platform

is not explicitly assigned to

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File Formats platform(4)

a platform group, it essen-

tially forms its own platform

group, where the platform

group name is the

PLATFORM_NAME value. The

IN_PLATFORM_GROUP value typi-

cally equals the output of the

uname -m command.

IN_PLATFORM_GROUP value cannot

have white space and is lim-

ited to 256 ASCII characters.

INST_ARCH The instruction set architec-

ture of the platform, for

example:

INST_ARCH=sparc

This field is only required if

the platform does not belong

to a platform group. The

INST_ARCH keyword value must

be the value returned by the

uname -i command on all plat-

forms in the platform group.

COMPATIBILITY The installation program will remain compatible with the old Solaris CD format. If a Solaris CD image does not contain

any platform definition files, the installation and upgrade

programs will select the packages to be installed based on

machine type, that is, the value returned by the uname -p

command.

EXAMPLES

Example 1 Platform Group Definitions

The following example shows platform group definitions from

the .platform/Solaris platform definition file.

PLATFORM_GROUP=sun4u

INST_ARCH=sparc

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File Formats platform(4)

Example 2 Platform Identification Stanzas

The following example shows platform identification stanzas,

which define systems that belong in a platform group, from

the .platform/Solaris platform definition file.

PLATFORM_NAME=SUNW,SunFire

PLATFORM_ID=SUNW,SunFire

IN_PLATFORM_GROUP=sun4u

PLATFORM_NAME=SUNW,Ultra-80

PLATFORM_ID=SUNW,Ultra-80

IN_PLATFORM_GROUP=sun4u

PLATFORM_NAME=SUNW,SunFire

PLATFORM_ID=SUNW,SunFire

IN_PLATFORM_GROUP=sun4u

PLATFORM_NAME=SUNW,Ultra-80

PLATFORM_ID=SUNW,Ultra-80

IN_PLATFORM_GROUP=sun4u

FILES

The .platform directory must reside as

/cd_image/Solaris_vers/.platform, where

cd_image Is the path to the mounted Solaris CD

(/cdrom/cdrom0/s0 by default) or the path to a copy of the Solaris CD on a disk.

Solaris_vers Is the version of Solaris, for example,

Solaris_2.9.

NOTES

Typically, a platform identification stanza contains either

a PLATFORM_ID or a MACHINE_TYPE stanza, but not both.

If both are specified, both must match for a platform to be

identified as this platform type. Each platform identifica-

tion stanza must contain either a PLATFORM_ID value or a

MACHINE_TYPE value. If a platform matches two different

platform identification stanzas-one which matched on the

value of PLATFORM_ID and one which matched on the value of

MACHINE_TYPE , the one that matched on PLATFORM_ID will take

precedence.

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File Formats platform(4)

The .platform directory is part of the Solaris CD image,

whether that be the Solaris CD or a copy of the Solaris CD on a system's hard disk.

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