SOLVED: Updating BIOS from linux

[davidsummers]

Hi, I'm looking to update the BIOS on an old ProBook 640 G1. The laptop has linux installed Cenos.

Now under linux I have an EFI directory, that currently contains:

BOOT

centos

The bios update unpacks to a SP96081 directory, that contains a BIOSUpdate directory that contains efi type files.

Now I've tried putting this under EFI/HP/BIOSUpdate - but update BIOS started from the BIOS says Unable to open the BIOS Image file.

So what exactly should I create from the files extracted from the BIOS update, can I do this from the EFI partion?

Thanks in advance,

David.

[davidsummers · Accepted solution]

OK finally managed to do the update, its vaguely mention under the BIOS update whats needed. So in case anyone has the same problem:

1) Under EFI/HP/BIOS/New directory put the New BIOS binary file

2) Under EFI/HP/BIOSUpdate put the HpBiosUpdate.efi and HpBiosUpdate.s12 files

Then in BIOS you can do the update from local media, and that works fine.

P.S. Of yes - it also helps with a problem with ACPI wakeups (I think on USB) meaning that on powerdown, the machine would switch on again about 5 seconds later .... So there was no way to power off the machine ....