11 Mar
2021
11 Mar
'21
9:25 p.m.
On 3/11/21 2:31 PM, Ilias Apalodimas wrote:
I am not referring to efidebug.
The user can update EFI variables with any binary content using an EFI binary or OS functions.
E.g. copy a binary file to the efi variables file system in Linux.
Right, I was mostly thinking SetVariable which still goes through u-boot. Copying an entire file is possiible though I guess
dd if=foo of=/sys/firmware/efi/efivars/Boot0123-8be4df61-93ca-11d2-aa0d-00e098032b8c
But Linux makes some consistency checks.
Best regards
Heinrich