/dev/nvram does not exist on any machine I could get my hands on, and
neither my QNAP NAS runing Linux. It looks like 'modprobe nvram' would work
if the module was compiled.
There is some documentation referencing that the BIOS settings are actually
stored in this area next to the Realtime Clock (RTC).
http://manpages.ubuntu.com/manpages/natty/man4/nvram.4freebsd.html
I reckon that if this did exist, you would get a binary stream from this
file (not a simple text file with settings), that would be in a format
unique to that BIOS/machine, and would also have a checksum associated with
it that would need to be recalculated on changing any of the data. Your
best bet assuming all of your clients are the same model would be to set
the settings as you like, dd this out of /dev/nvram and restore on the
other machines.
Regards,
On Fri, Aug 24, 2012 at 4:17 PM, Oguz Yarimtepe <[email protected]>wrote:
> Hi,
>
> I am trying to figure out the central BIOS settings update for thin
> clients. I read /dev/nvram keeps this settings and it is said that it is
> possible to save and restore it using dd command.
>
> I am not sure whether it is possible in LTS and client environment. If i
> run a command at the server like dd if=/dev/nvram of=/root/nvram.saved
>
> and send it to the one of the thin clients and run
>
> dd of=/dev/nvram if=nvram.saved
>
> will it have an effect?
>
> Do i need to set something at the BIOS of the server or is there anyother
> way?
>
> --
> Oguz Yarimtepe <[email protected]>
> http://about.me/oguzy
>
>
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--
Jay Goldberg
------------------------------------------------------------------------------
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