[CentOS] /lib/firmware/microcode.dat update on CentOS 6
Leon Fauster
leonfauster at googlemail.com
Wed Jan 17 23:56:55 UTC 2018
> Am 17.01.2018 um 23:22 schrieb Johnny Hughes <johnny at centos.org>:
>
> On 01/17/2018 03:24 PM, Valeri Galtsev wrote:
>> Dear All,
>>
>> An update just brought on my CenOS 6 boxes updated microcode.dat files:
>>
>> /lib/firmware/microcode.dat
>>
>> Does anybody know off hand what (how critical) is that, as, if it is
>> related to most famous these days trouble with CPU hardware, I will need
>> to reboot relevant boxes to have new microcode loaded. But if it is not
>> that critical, it can wait till next reboot.
>>
>> Thanks a lot and apologies for laziness (not looking into details of
>> this particular update myself).
>
> As Phil said, this basically REMOVES the new microcode.dat file and
> reverts to the last stable one before the spectre / meltdown update set.
>
> Please see my tweet about this:
>
>
> https://twitter.com/JohnnyCentOS/status/953734648764477440
>
> For those of you without twitter (WHAT .. who doesn't have twitter :D )
>
> Look at:
>
> https://t.co/6fT61xgtGH
>
> Get the latest microcode.dat file from here:
>
> https://t.co/zPwagbeJFY
>
> See how to update the microcode from the links at the bottom of this page:
>
> https://t.co/EOgclWdHCw
>
> An before anyone asks .. I have no idea why Red Hat chose this path,
> they did. It doesn't matter if I (or anyone else) agrees with the
> decision. It is what it is.
BTW: Will the microcode loaded from microcode.dat or from the intel-ucode directory (for EL6)?
--
LF
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