[Pkg-xen-devel] Bug#785187: Bug#785187: xen-hypervisor-4.5-amd64: Option ucode=scan is not working

[Ian Campbell]

On Wed, 2015-05-13 at 11:57 -0400, Konrad Rzeszutek Wilk wrote:
> > > according to the documentation the option ucode=scan should tell XEN to 
> > > look for a microcode update in an uncompressed initrd.
> > > 
> > > While I don’t use the Debian kernel the tools to generate the initrd are 
> > > part of Debian. The command „cpio -i < /boot/initrd.img-4.0.2-Dom0” 
> > > creates the directory structure „kernel/x86/microcode/GenuineIntel.bin”, 
> > > so I think the initrd is allright.
> 
> 
> Is the initramfs compressed?

The successful use of "cpio -i < /boot/initrd.img" would suggest not, I
don't think cpio knows how to decompress things by itself.

Ian.