Hi Man,
Well there's about 16 bytes plus/minus that holds the data and a command line computed checksum. Looks that even Sun removed the mkp in later firmware; typical!
Like this:
Last edited by Don Cragun; 02-17-2016 at 03:13 PM..
Reason: Add CODE tags.
Hello guys ,and girls.
Im having a very interesting problem.
I have a Netra SUN machine
and i had it here for quite a while now...i wanted to install it as a new server and todo so i needed to mount a cd rom and to change the boot at the prom level to cdrom.
this could work but i forgot the... (5 Replies)
what is its signifance and how do you flush it. i was reading this book that said something about flushing the nvram before un-installing it. how do you do that and also whats the purpose of this nvram when the regular RAM is available (2 Replies)
I have Ultra1 SUN machine, its NVRAM got damaged.
I purchased new NVRAM. now the host id of the new nvram is by default different than the old one.Any way to program it to change the new host id to be the same like the host id of the damaged one? (3 Replies)
I have replaced the nvram on my Sun V480 and now the system stops at the "ctrl-d for normal startup, or root password for maintenance" part. The nvram auto-boot=true, but it still stops here.
Any help would be appreciated.
Thanks. (4 Replies)
what is the requirements to install a new nvram for sun fire v890 server.
should I keep the same host id and mac address, or it doesn't matter the server will boot with the new nvram regardless to the host id and mac address. (4 Replies)
Hi Gurus,
Can somebody explain me actually how a NVRAM works on a sparc server. I am really confused and the same level of confusion with eeprom . (1 Reply)
Does anybody know how to reset the NVRAM on a System p 520 (power 5)? (7 Replies)
Discussion started by: livehho
7 Replies
LEARN ABOUT DEBIAN
tpm_nvwrite
tpm_nvwrite(8)tpm_nvwrite(8)NAME
tpm_nvwrite
SYNOPSIS
tpm_nvwrite [OPTIONS]
DESCRIPTION
tpm_nvwrite writes data to an NVRAM area. The user must provide the index of the NVRAM area as well as the data to write into the NVRAM
area. Optionally an offset into the NVRAM area can be given where the writing of the data is to start. Similarly the use may provide the
number of bytes to write into the NVRAM area. Some NVRAM areas only allow write sizes of zero, i.e., NVRAM area index 0. If the NVRAM area
has permission bits set that require owner or NVRAM area authentication, then the password must be provided via the password option.
The following options are supported:
-h, --help
Display command usage info.
-v, --version
Display command version info.
-l, --log [none|error|info|debug]
Set logging level.
-u, --unicode
Use TSS UNICODE encoding for passwords to comply with applications using TSS popup boxes
-z, --well-known
Use a secret of all zeros (20 bytes of zeros) as either the NVRAM area or owner secret.
-p, --password
Depending on what type of authentication is required for the NVRAM area, this must either be the NVRAM area or owner password.
A password may be directly provided for example by using '--password=password' or -ppassword. If no password is provided then the
program will prompt the user for the password.
-i, --index (optional parameter)
The index of the NVRAM area. The parameter may either be a decimal number or a hexadecimal number starting with '0x'.
-s, --size
The number of bytes to write to the NVRAM area. This parameter may be used to truncating the data that are for example read from a
file. The parameter may either be a decimal number or a hexadecimal number starting with '0x'.
-n, --offset (optional parameter)
The offset into the NVRAM area where to start writing. The parameter may either be a decimal number or a hexadecimal number starting
with '0x'.
-f, --filename (optional parameter)
The name of a file from which to read data and copy them into the NVRAM area.
-d, --data (optional parameter)
The data to write into the NVRAM area passed in the command line.
-m, --fill-value (optional parameter)
The byte to fill the NVRAM area with.
SEE ALSO tpm_nvdefine(8), tpm_nvinfo(8), tpm_nvread(8), tpm_nvrelease(8)REPORTING BUGS
Report bugs to <trousers-users@lists.sourceforge.net>
TPM Management 2011-07-11 tpm_nvwrite(8)