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Solaris 10 Installation Guide: Custom JumpStart and Advanced Installations
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Custom JumpStart Environment Variables

You can use environment variables in your begin and finish scripts. For example, a begin script might extract the disk size, SI_DISKSIZES, and install or not install particular packages on a system, based on the actual disk size the script extracts.

Information that is gathered about a system is stored in these environment variables, which are generally set or not, depending on the rule keywords and values you use in the rules file.

For example, information about which operating system is already installed on a system is only available in SI_INSTALLED after the installed keyword is used.

Table 11–10 describes these variables and their values.

Table 11–10 Installation Environment Variables

Environment Variable 

Value 

SI_ARCH

The hardware architecture of the install client. The SI_ARCH variable is set when the arch keyword is used in the rules file.

SI_BEGIN

The name of the begin script, if one is used. 

SI_CLASS

The name of the profile that is used to install the install client. 

SI_DISKLIST

A comma-separated list of disk names on the install client. The SI_DISKLIST variable is set when the disksize keyword is used and matched in the rules file. The SI_DISKLIST and SI_NUMDISKS variables are used to determine the physical disk to use for the rootdisk. rootdisk is described in How the System's Root Disk Is Determined.

SI_DISKSIZES

A comma-separated list of disk sizes on the install client. The SI_DISKSIZES variable is set when the disksize keyword is used and matched in the rules file.

SI_DOMAINNAME

The domain name. The SI_DOMAINNAME variable is set when the dommainname keyword is used and matched in the rules file.

SI_FINISH

The name of the finish script, if one is used. 

SI_HOSTADDRESS

The install client's IP address. 

SI_HOSTNAME

The install client's host name. The SI_HOSTNAME variable is set when the hostname keyword is used and matched in the rules file.

SI_INSTALLED

The device name of a disk with a specific operating system on the disk, for example, Solaris, SunOS, or System V. The SI_INSTALLED variable is set when the installed keyword is used and matched in the rules file. SI_INST_OS and SI_INST_VER are used to determine the value of SI_INSTALLED.

SI_INST_OS

The name of the operating system. SI_INST_OS and SI_INST_VER are used to determine the value of SI_INSTALLED.

SI_INST_VER

The version of the operating system. SI_INST_OS and SI_INST_VER are used to determine the value of SI_INSTALLED.

SI_KARCH

The install client's kernel architecture. The SI_KARCH variable is set when the karch keyword is used and matched in the rules file.

SI_MEMSIZE

The amount of physical memory on the install client. The SI_MEMSIZE variable is set when the memsize keyword is used and matched in the rules file.

SI_MODEL

The install client's model name. The SI_MODEL variable is set when the model keyword is used and matched in the rules file.

SI_NETWORK

The install client's network number. The SI_NETWORK variable is set when the network keyword is used and matched in the rules file.

SI_NUMDISKS

The number of disks on an install client. The SI_NUMDISKS variable is set when the disksize keyword is used and matched in the rules file. The SI_NUMDISKS and SI_DISKLIST variables are used to determine the physical disk to use for the rootdisk. rootdisk is described in How the System's Root Disk Is Determined.

SI_OSNAME

The operating system release on the Solaris software image. For example, you can use the SI_OSNAME variable in a script if you are installing the Solaris software on systems that are based on the version of the operating system on the Solaris Operating System DVD or the Solaris Software - 1 CD image.

SI_ROOTDISK

The device name of the disk that is represented by the logical name rootdisk. The SI_ROOTDISK variable is set when the disksize or the installed keyword is set to rootdisk in the rules file.

SI_ROOTDISKSIZE

The size of the disk that is represented by the logical name rootdisk. The SI_ROOTDISKSIZE variable is set when the disksize or the installed keyword is set to rootdisk in the rules file.

SI_TOTALDISK

The total amount of disk space on the install client. The SI_TOTALDISK variable is set when the totaldisk keyword is used and matched in the rules file.