consvar(8)consvar(8)NAMEconsvar - Manipulate system firmware console environment variables
SYNOPSIS
/sbin/consvar [-v] [-nc] -g-s -l -a -d [variable] [value]
OPTIONS
Verbose mode. Prints out the system IDs used by firmware, the current
firmware revision, and information about the process. Get the value of
the specified console environment variable. Set the value of the spec‐
ified console environment variable. List the values of all variables
supported by this platform that are not disabled. This is similar to
the show SRM console command. Save the values of all environment vari‐
ables to non-volatile storage. Setting a variable with the -s option
only updates the in-memory copy of console environment variables. The
save process could take a long time on some platforms, so it is recom‐
mended that the variables are saved after all set operations have been
performed. List the system and exception database information. Do not
perform value conversion. Variables that contain device information
have an underlying console bootstring format. If this option is used,
consvar does not convert between the Tru64 UNIX names for these
devices, but accepts and displays the raw values. The same goes for
integer values which are converted between strings and hexadecimal val‐
ues.
DESCRIPTION
Use the consvar command to get, set, list, and save console environment
variables available on SRM system firmware. Some firmware versions on
some platforms do not comply with the Alpha SRM when dealing with cer‐
tain variables, or operations. To ensure UNIX functionality with such
firmware, an exception database is consulted and these operations are
disabled. By default, consvar accepts and displays device values with
Tru64 UNIX device names, or their device special file names. The raw
console bootstrings can be used by providing the -nc option. For infor‐
mation regarding the console environment variables, please refer to the
Alpha System Reference Manual.
RETURN VALUES
Success. Failure.
EXAMPLES
To show the values of all available console variables, enter: % consvar-l To get the value of the booted_dev variable, enter: % consvar-g
booted_dev
A message similar to the following will be displayed: booted_dev
= disk0 To set the value of boot_dev, enter the device name of
the required boot device: % consvar-s boot_dev disk0
To save the values of the variables across system resets, enter:
% consvar-a If an operation fails, you can find out if it is
disabled by using the -v option. For example, to see if the
bootdef_dev variable is disabled, enter: % consvar-v -g boot‐
def_dev The exception database can be printed out along with the
status of the current platform's console variable support by
entering: % consvar-v -d
FILES
Specifies the command path. Exception database.
SEE ALSO
Functions: getsysinfo(2), setsysinfo(2)consvar(8)