Re: ANNOUNCEMENT: Intel/AMD x86 CPU microcode update system in non-free
On Mon, Nov 05, 2012 at 06:12:53PM -0200, Henrique de Moraes Holschuh wrote:
> Microcode updates will be applied immediately when the microcode
> packages are installed or updated: you don't have to reboot. You will
> have to keep the packages installed, though: as explained above, the
> microcode updates have to be reapplied at every boot.
>
> You can check which version of the microcode your processors are running
> by looking for "microcode" lines on /proc/cpuinfo. This information is
> only available on recent kernels (such as the Wheezy kernel).
This did not appear to work for me automatically. I did not upgrade my kernel
in the same aptitude session.
Before:
> $ grep microcode /proc/cpuinfo
> microcode : 0x1b
After installing intel-microcode and iucode-tool 0.8.3-1:
> $ grep microcode /proc/cpuinfo
> microcode : 0x1b
After some manual fiddling
> # iucode_tool --scan-system -vv
> iucode_tool: cpuid kernel driver unavailable, cannot scan system processor signatures
> # modprobe cpuid
> # iucode_tool --scan-system -vv
> iucode_tool: trying to get CPUID information from /dev/cpu/0/cpuid
> iucode_tool: system has processor(s) with signature 0x000206a7
> iucode_tool: trying to get CPUID information from /dev/cpu/1/cpuid
> iucode_tool: trying to get CPUID information from /dev/cpu/2/cpuid
> iucode_tool: trying to get CPUID information from /dev/cpu/3/cpuid
> iucode_tool: checked the signature of 4 processor(s)
> $ grep microcode /proc/cpuinfo
> microcode : 0x28
> $ dpkg -S /boot/vmlinuz-$(uname -r)
> linux-image-3.2.0-4-amd64: /boot/vmlinuz-3.2.0-4-amd64
> ii udev 175-7 amd64 /dev/ and hotplug management daem
Shall I file a bug?
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