Solaris 8 Advanced Installation Guide

Custom JumpStart Environment Variables

There are several useful environment variables you can use in your begin and finish scripts. For example, a begin script could 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 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 7-1 describes these variables and their values.

Table 7-1 Installation Environment Variables


This environment variable	Is set to
`SI_ARCH`	The hardware architecture of the install client. This 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 used to install the install client.
`SI_DISKLIST`	A comma-separated list of disk names on the install client. This 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` (described in "How the System's Root Disk Is Determined").
`SI_DISKSIZES`	A comma-separated list of disk sizes on the install client. This variable is set when the `disksize` keyword is used and matched in the `rules` file.
`SI_DOMAINNAME`	The domain name. This 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. This 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 it (Solaris, SunOS, or System V). This variable is set when the `installed` keyword is used and matched in the 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. This 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. This variable is set when the `memsize` keyword is used and matched in the `rules` file.
`SI_MODEL`	The install client's model name. This variable is set when the `model` keyword is used and matched in the `rules` file.
`SI_NETWORK`	The install client's network number. This 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. This 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` (described in "How the System's Root Disk Is Determined").
`SI_OSNAME`	The operating system release on the Solaris 8 Software 1 of 2 SPARC Platform Edition or Solaris 8 Software 1 of 2 Intel Platform Edition CD image. You can, for example, use this variable in a script if you want to install Solaris on systems based on the version of the operating system on the Solaris 8 Software 1 of 2 SPARC Platform Edition or Solaris 8 Software 1 of 2 Intel Platform Edition CD image.
`SI_ROOTDISK`	The device name of the disk represented by the logical name `rootdisk`. This 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 represented by the logical name `rootdisk`. This 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. This variable is set when the `totaldisk` keyword is used and matched in the `rules` file.