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

On Tue, May 19, 2015 at 12:47:51PM +0100, Ian Campbell wrote:
The reconcatenate bit is easy, just:
  $ cat initrd.ucode initrd.real > initrd.img
With initrd.real extracted above.

initrd.ucode creation I'm a little unsure about but something like:

$ mkdir initrd.ucode.tree
$ cd initrd.ucode.tree
$ cat /boot/initrd.img | cpio -id
$ find
$ find | cpio -o -H newc > ../initrd.ucode

That interesting. Your steps lead to an initrd with the same size as the initrd created by the Debian tools. But the new one is working with ucode=scan, the old one isnât.

BTW, could you please post the output "xl dmesg" for the failing case, I
should have asked for that right at the start in case it contains
anything of use.

I can do this, but neither âxl dmesgâ nor âdmesgâ are telling anything about microcode. Are there ways to make the hypervisor more verbose?

Shade and sweet water!

| Stephan Seitz          E-Mail: stse@xxxxxxxxxxxxxxxxxxx |
| Public Keys: http://fsing.rootsland.net/~stse/keys.html |

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