nvram - format data stored in non-volatile RAM
/usr/sbin/nvram [ options ]
Nvram is used to print and modify data stored in the
non-volatile RAM (NVRAM) on a PowerPC-64 system. NVRAM on these systems is
partitioned into data sections that each have their own format. The print
options to this command selects what to print and how to format it.
The nvram utility can also be used to update the data in
certain NVRAM partitions of PowerPC-64 systems. Nvram can update the
value of a name/value pair for NVRAM partitions formatted as a set of
name=value pairs. On many systems, the following NVRAM partitions contain
data formatted as name=value pairs: common, of-config, and ibm,setupcfg.
- --print-config[=var]
- print value of a config variable, or print all variables in the specified
(or all) partitions.
- --update-config
name=value
- update the config variable in the specified partition; the -p option must
also be specified..
- -p partition
- specify a partition; required with the --update-config option, optional
with the --print-config option.
- --print-vpd
- print vital product data (VPD) collected by the system in NVRAM. This data
may also be viewed with the lscfg(1) command directly from the
devices.
- --print-all-vpd
- print viral product data (VPD) collected by the system in NVRAM including
vendor specific data.
- --print-err-log
- print the checkstop error log generated by the service processor whenever
the system checkstops.
- --print-event-scan
- print the event scan log stored in NVRAM.
- --partitions
- print the contents of all the NVRAM partition headers.
- --nvram-file
path
- read nvram data from a given file rather than /dev/nvram. To capture NVRAM
for later use, simply copy /dev/nvram into a file.
- --verbose
(-v)
- be more verbose.
- --help
- print usage information including other low level options useful for
debugging nvram.
Writtem by Todd Inglett, Nathan Fontenot, and Michael
Strosaker