chsysinfo(1M)

chsysinfo -- change system name and version

Syntax

/usr/sbin/chsysinfo [ uw712 | ou8 | default ]

Description

The chsysinfo command provides the ability to change the system name and/or version strings kept in system data structures. You must be logged in as root to use this command.

As noted on the uname(1) manual page, the SCOMPAT environment variable can be used to set system name and version returned by the uname command. The chsysinfo command not only changes the values returned by the uname command, but also changes the system name and version returned by confstr(3C), sysinfo(2), and uname(2).

The changes made by chsysinfo are effective system wide; however, they do not persist across a reboot of the system. Upon reboot, the system will always have the default system name and version values specified in the file /etc/conf/pack.d/name/space.c.

Options

The following options are supported and change the system name and version as indicated:

option system name version

uw712 UnixWare 7.1.2

ou8 OpenUNIX 8.0.0

default UnixWare 7.1.3

option	system name	version
uw712	UnixWare	7.1.2
ou8	OpenUNIX	8.0.0
default	UnixWare	7.1.3

Usage

Some applications, for example, might not install due to the installation requiring a system version (uname -v) of 7.1.2.

To install such an application, you might need to enter a the following commands:

   chsysinfo uw712
   pkgadd -d cdrom1 uw7pkg
   chsysinfo default

The first chsysinfo command changes the system name and version to "UnixWare" and "7.1.2". After the package is installed with pkgadd, the second command returns these values to their default values.

Similarly, applications that require runtime checks of the system name and version can be started with a "wrapper" script that executes chsysinfo prior to launching the application, as in this example:

   chsysinfo uw712
   /usr/bin/myapplication
   chsysinfo default

Files

/etc/conf/pack.d/name/space.c: file containing the values for system name and version used at boot time

References

confstr(3C), sysinfo(2), uname(1), uname(2)