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document ./mk inject setmac on the nvmutil page 

Signed-off-by: Leah Rowe <leah@libreboot.org>
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Leah Rowe 2025-01-07 08:33:39 +00:00
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site/docs/install/nvmutil.md
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@ -45,6 +45,36 @@ you how to dump or otherwise acquire that file; the second
half of this README then tells you how to operate on it,
using `nvmutil`.
Automatic MAC address changer
-----------------------------
Instead of running nvmutil manually, like below, you can
also use the inject command, like so (examples):
./mk inject libreboot-RELEASE_targetname.tar.xz
./mk inject libreboot-RELEASE_targetname.tar.xz setmac
./mk inject libreboot-RELEASE_targetname.tar.xz setmac 00:1f:16:00:11:22
./mk inject libreboot-RELEASE_targetname.tar.xz setmac 00:??:16:0?:1?:22
./mk inject libreboot-RELEASE_targetname.tar.xz setmac restore
This writes the MAC address on the GbE region of the image. You must do this
on the tarball, from the ROM image release archives, and then extract the
archive.
These same commands also [download/insert certain vendor files](ivy_has_common.md)
if needed, on the given board.
Without argument after the tarball, it behaves the same as `setmac`. If `setmac`
is provided without argument, or no argument is given, the MAC address is
randomised. Otherwise, you can specify an arbitrary address.
The `?` character is random, and you can specify that any of them be random,
while setting others (or all of them) arbitrarily.
The `restore` option restores the original one. The command works by using a
reference GbE image file present in Libreboot's build system, for the given
mainboard.
How to download newer versions
==============================