Setting Boot Options - Compaq AlphaServer DS20E Reference Manual

4.1

Setting Boot Options

You can set a default boot device, boot flags, and network boot
protocols for Tru64 UNIX or OpenVMS using the SRM set command
with environment variables. Once these environment variables are set,
the boot command defaults to the stored values. You can override the
stored values for the current boot session by entering parameters on
the boot command line.
The SRM boot-related environment variables are listed below and described in
the following sections.
auto_action
bootdef_dev
boot_file
boot_osflags
ei*0_inet_init or
ew*0_inet_init
ei*0_protocols or
ew*0_protocols
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Determines the default action the system takes when the
system is power cycled, reset, or experiences a failure.
Device or device list from which booting is to be attempted
when no path is specified on the command line.
Specifies a default file name to be used for booting when
no file name is specified by the boot command.
Defines parameters (boot flags) used by the operating
system to determine some aspects of a system bootstrap.
Determines whether the interface's internal Internet
database is initialized from nvram or from a network
server (through the bootp protocol). Set this environment
variable if you are booting Tru64 UNIX from a RIS server.
Defines a default network boot protocol (bootp or mop).