NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO
A ChorusOS system is built to allow the user to change certain parameters at system build or boot time. This page describes the system environment variables used in a standard ChorusOS system. These variables can be set or modified using the configurator(1CC) utility (or the graphical configurator commands), at system build time, and can be modified at boot time using the netboot configuration files or the boot PROM, depending on the target.
The current system environment can be displayed at any time using cs(1CC) with the -lE option, and read or modified using the sysGetEnv(2K) and sysSetEnv(2K) system calls.
Some environment variables are for information only, (they may be set, ususally by the boot procedure) but are not used for system configuration by ChorusOS.
The ChorusOS contains the following system environment variables which may be modified:
The boot file name (the path of the system archive that was booted on the target system) for information only.
The Internet address (in dotted decimal notation) of the host system where BOOTFILE was booted, if any, for information only.
The hostname of the target system, for information only.
This parameter is used by the file manager to determine the target's Internet address in dotted decimal notation. By default, the file manager determines the address using the RARP protocol.
The Internet address of the routing gateway, if any.
This parameter is used by the file manager to determine the Internet network mask (8 hexadecimal digits). By default, the file manager determines the network mask according to the target's Internet address. To use the remote CHORUS IPC, the network mask must have a maximum of 11 null bits (it must be at least fffff800).
The Internet address (in dotted decimal notation) of the host system which provides the default root file system for the target system.
The name of the host system which provides the default root file system for the target system.
The location of the target's root file system on the host.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO