User's Guide

Environment variables
With the env_vars configuration item, you can place environment variables into the environment
of the programs that are run by Ignite-UX. Setting an environment variable is done in the following
way:
env_vars += "TZ=JST-9"
The preceding example sets the time zone for the installation to Japanese Standard Time.
Although this time zone does not define daylight savings, if you set a time zone that does have
daylight savings you should be very careful. Take, for example, the time zone Australian Eastern
time zone (EST-10EDT). Since the installation file system does not have a tztab file, when the time
zone US EASTERN (EST5EDT) is in daylight savings it assumes EST-10EDT is also in daylight
savings. In reality these time zones never actually overlap because one is in the northern
hemisphere and the other in the southern.
The following environment variables are special and affect the installation or recovery process:
 INST_NET_RESPONSE_TIMEOUT—this variable provides safety for systems. The
instl_adm(4) manpage states the following information about the variable:
When booting an install client from the network, this sets the amount of
time that the system will wait for a user response before it reboots in
assumption that the system booted from the install server accidentally.
Setting seconds
to 0 (zero) will disable the timeout and the system will
not prompt for a response.
If this value is set to >0 the following message appears:
Please press <return/enter> (within %d seconds) to continue loading the
network-install utility:
If that times out, it is followed by the following message, so users know that the system is
rebooting:
Unless you select <return/enter> within 10 seconds, the system will
reboot:
If neither Enter nor Return is selected within 10 seconds, the system reboots.
 INST_ALLOW_WARNINGS—this variable again provides for the safety of systems (or in this case,
disks):
Setting this environment variable is useful for non-interactive install
sessions when warnings about disks containing data cause the installation to
switch to interactive mode. Setting seconds
to 1 will cause all warnings to
be ignored and the installation will proceed. Setting seconds
to greater than
1 will allow the user that many seconds to read the warning and stop the
installation by pressing <return>.
You should be very careful about setting this variable away from the default of 0. A non-default
value can be dangerous when you are doing a clean installation or cloning a system (especially
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