Ok, But How is the right way to change this efivars ?
build a kernel with some define or config ? Use a specific tool for that ?

thanks

On Sat, Mar 4, 2017 at 9:31 PM, Markus B?hme [off-list ref] wrote:

Hello Lucas!

On 03/04/2017 09:24 PM, Lucas Tanure wrote:

quoted

I would like to modify efivars at /sys/firmware/efi/efivars/.
But I can't modify it using root.

The file :
-rw-r--r-- 1 root root 31 Mar  4 19:04
/sys/firmware/efi/efivars/OilSetup-88d1911c-ab4a-4335-9e9a-26be9081acc3

the mount point :
efivarfs on /sys/firmware/efi/efivars type efivarfs
(rw,nosuid,nodev,noexec,relatime)

Depending on the variable it may be that the corresponding file is
marked as immutable. See commit ed8b0de5a33d for details.

Regards,
Markus

-- 
Lucas Tanure
Embedded Developer
+55 19 988176559