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Latest UEK does not update microcode

edited Oct 30, 2018 1:26PM in Linux Operating System (MOSC) 11 commentsAnswered

The microcode_ctl package does not appear to be working with the latest UEK.

I don't see a record of it in the dmesg:

$ dmesg | egrep 'microcode:|Linux version'

[    0.000000] Linux version 4.1.12-124.19.7.el7uek.x86_64 (mockbuild@) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16.0.3) (GCC) ) #2 SMP Sat Sep 29 17:29:22 PDT 2018

[    0.924946] microcode: CPU0 sig=0x6fd, pf=0x1, revision=0xa1

[    0.924970] microcode: CPU1 sig=0x6fd, pf=0x1, revision=0xa1

[    0.925113] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba

Booting under the RHCK, the update is applied:

$ dmesg | egrep 'microcode:|Linux version'

[    0.000000] microcode: microcode updated early to revision 0xa4, date = 2010-10-02

[    0.000000] Linux version 3.10.0-862.14.4.el7.x86_64 (

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