[arch-general] [arch-dev-public] Changes to microcode updates

Thomas Bächler thomas at archlinux.org
Thu Oct 23 15:55:43 UTC 2014

Am 21.10.2014 um 11:36 schrieb Mike Cloaked:
> On Mon, Oct 20, 2014 at 5:44 PM, Thomas Bächler <thomas at archlinux.org>
> wrote:
>> These changes have been done precisely to avoid these problems, the
>> first link and its responses summarize the situation pretty well.
> The file at https://www.kernel.org/doc/Documentation/x86/early-microcode.txt
> gives a method that should allow creating a combined initrd img file that
> anyone booting with refind EFI may be able to test.  There are suggested
> methods to implement early microcode loading for the other main bootloaders
> in the arch wiki, but until now for refind it seems not to have been
> verified to work. It would be nice to see verification that early microcode
> loading has been successful using all the main bootloaders/bootmanagers, as
> well as direct efistub boot.

A 2 minute Google search indicates that refind merely appends the initrd
as a kernel command line option (initrd=) - refind, like gummiboot, is
merely an EFI bootmanager and not a bootloader and thus relies on the
kernel's EFIstub feature. Therefore, refind does not load the initrd
itself, but delegates that task to the kernel.

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