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Alpha SRM Console Firmware
7.3.1.2 System-Defined Environment Variables
The following table shows common Alpha SRM Console system-defined environ-
ment variables and their descriptions. For a complete list, enter
show *
at the Alpha
SRM Console prompt.
boot_osflags
When used with the
set
or
show
command, this
variable modifies or displays the additional
parameters to be passed to system software. The
default is 0.
bootdef_dev
When used with the
set
or
show
command, this
variable modifies or displays the default device
or device list from which the system will attempt
to boot. If the system software is preloaded, the
variable is preset to point to the device containing
the preloaded software. The default is null.
System-Defined
Environment Variable
Description
console
When used with the
set
command, this variable modifies
the console output to either the serial port or the graphics con-
troller.
ewa0_mode
This variable determines if the AUI (ThinWire) or the
twisted-pair Ethernet ports will be enabled. AUI is the
default. (Autosensing is not supported.)
os_type
When used with the
set
or
show
command, this variable
modifies or displays the specified firmware that will be
loaded on the next power cycle. Specify the value
osf
or
UNIX
to select the Alpha SRM Console.
pci_parity
This variable controls PCI parity checking. The possible val-
ues are:
on
= Parity checking is enabled.
off
= Parity checking is disabled; this is the
default.
sniff
= Parity checking is enabled or disabled
depending on the PCI device.
oem_string
When used with the
set
or
show
command, this variable
modifies or displays a text string that identifies the product
name in the Alpha SRM Console banner.
Architecture-Required Environment
Variable
Description
