I installed the CentOS rpm: microcode_ctl-2.1-47.el7.x86_64.rpm<https://urldefense.proofpoint.com/v2/url?u=http-3A__mirror.centos.org_centos_7_os_x86-5F64_Packages_microcode-5Fctl-2D2.1-2D47.el7.x86-5F64.rpm&d=DwIGaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=_0VrlHuBnOSU5g5r1FaT_NKl7hAgmgJsdmA68Xz2jN4&s=pcdlnk34WinaF7CPVkH3Jcd3bYfeC24sVCSLqpCexkI&e=>
and this seems to have resolved the issue. I did a full shutdown and then restarted the machine without the diagnostic appearing. /var/log/dmesg has: [ 0.000000] microcode: microcode updated early to revision 0x25, date = 2018-04-02 ] Previous post: I have a [FirmwareBug]: TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x22 (or later). This diagnostic is displayed during boot and is recorded in /var/log/dmesg . How does one obtain the necessary microcode? For Ubuntu and presumably other .deb based distributions: Just install intel-microcode with sudo apt-get install intel-microcode and reboot. End quote. What is the equivalent EL command and from which repository does the command get the "intel-microcode"? The CPU is an Intel I7 in a HP Zbook laptop from several years ago. Thanks for any information. Yasha Karant
