auto_parms.1m (2010 09)

auto_parms(1M) auto_parms(1M)

NAME

auto_parms - initial system conﬁguration plus DHCP support command

SYNOPSIS

auto_parms

DESCRIPTION

The auto_parms command is a system initialization command that handles ﬁrst-boot conﬁguration,

that is, the setting of unique system "initial identity parameters", and ongoing management of DHCP

lease(s). The auto_parms command is invoked at boot time by the

/sbin/rc command. Initially it

loads a list of available ethernet interfaces and requests a DHCP lease on each interface. See the rc(1M)

manpage for information about

/sbin/rc for invocation context.

While checking for availability of a lease on each interface,

auto_parms also consults

/etc/rc.config.d/netconf

and examines the variable DHCP_ENABLE[index]. If it is set to "1",

auto_parms attempts to request a lease on the the interface designated by

index.If

DHCP_ENABLE[index] is set to "0" (the default case) or is absent from

/etc/rc.config.d/netconf

auto_parms does not attempt a DHCP request on that interface.

Once a lease is secured, the information supplied with the lease is used to initialize key networking

parameters; see dhcpdb2conf (1M).

auto_parms detects that the system is undergoing "ﬁrst-boot" (meaning the system’s hostname is not

yet set), it invokes set_parms to verify the DHCP-supplied parameters and to collect any parameters

not supplied by DHCP.

For all subsequent boots, the data supplied by a DHCP lease is assumed by

auto_parms to be correct.

Note that in a (non-mobile) environment where DHCP is used for IP address management, under normal

conditions the lease information should not change between reboots. This is accomplished by

auto_parms placing dhcpclient in "lease maintenance mode" prior to exiting.

FILES

/sbin/auto_parms

The command itself.

/sbin/set_parms.util

Common subroutines used by auto_parms, set_parms, and set_parms

sub-area commands.

Log ﬁles written and saved by

auto_parms:

/etc/auto_parms.log

/etc/auto_parms.log.old

AUTHOR

The auto_parms command was developed by HP.

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auto_parms(1M) auto_parms(1M) NAME auto_parms - initial system configuration plus DHCP support command SYNOPSIS auto_parms DESCRIPTION The auto_parms command is a system initialization command that handles first-boot configuration, that is, the setting of unique system "initial identity parameters", and ongoing management of DHCP lease(s). The auto_parms command is invoked at boot time by the /sbin/rc command.
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(Notes) A (Notes) aA 2 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010