Updated amd microcode do not load after reboot

Question

After install of updated microcode "sudo apt install amd64-microcode" on ubuntu 16.04, after reboot microcode do not load. Its needed to patch spectre v2 and without it the computer is vulnerable.

[1.702088]microcode: CPU0: patch_level=0x07030105
[1.702099]microcode: CPU1: patch_level=0x07030105
[1.702111]microcode: CPU2: patch_level=0x07030105
[1.702121]microcode: CPU3: patch_level=0x07030105
[1.702181]microcode: Microcode Update Driver: v2.2.

How did you determine that "after reboot microcode do not load"? — Byte Commander, Apr 12 '18 at 11:48
it show the same version off microcode that it had before update — José Almeida, Apr 12 '18 at 11:52
See https://askubuntu.com/questions/1016971/why-dont-intel-microcode-updates-work-on-my-system/1017078 — Panther, Apr 12 '18 at 15:16
@JoséAlmeida the amd64-microcode is from 2016, and probably doesn't contain the newer microcode that you're looking for. Visit the AMD site and check for newer microcode there. If it's there, you can probably use it with amd64-microcode. — heynnema, Apr 12 '18 at 15:54
Yes its there, i have it but i do not know how to install it ? — José Almeida, Apr 12 '18 at 15:56
You'll probably have to sudo cp the newer microcode files into some subdirectory of /lib/firmware/. — heynnema, Apr 12 '18 at 15:59

score 0 · Answer 1 · answered Jun 20 '18 at 09:16

Here, it did not load either, but apt wanted to autoremove it - just to install it again afterwards (on apt-get update). Turns out an "apt-get dist-upgrade" was needed to upgrade the linux-generic. Afterwards, the amd-microcode was uptodate again (and the autoremove issue went away).

Updated amd microcode do not load after reboot

1 Answers1