Stefan,
The case that I encountered recently was that Dell released a
UEFI update 2.7.0 that included a microcode update for Intel CPUs in
Dell PE R630 servers. One week later, Dell recalled the update and
recommended that the UEFI be downgraded from version 2.7.0 to version
2.6.0. You can still see the reference to the recalled UEFI at
<http://www.dell.com/support/article/in/en/inbsd1/sln308588/microprocessor-side-channel-vulnerabilities-cve-2017-5715-cve-2017-5753-cve-2017-5754-impact-on-dell-emc-products-dell-enterprise-servers-storage-and-networking->.
I was able to downgrade all the formerly-upgraded UEFIs with the DSUs
and reboots. I am uncertain what the Lifecycle Controller contains
that might necessitate a downgrade, but I have noticed that Dell has
infrequently recalled problematic firmware and replaced it with either
a minor increment to the version or an outright downgrade. If Dell
could make it easier to connect the reason for the downgrade to the
recommendation of the DSU, then I would greatly appreciate it.
--
Zachary Wincek
On Sun, Feb 18, 2018 at 12:49 PM, Chris Adams <[email protected]> wrote:
> Once upon a time, Stefan M. Radman <[email protected]> said:
>> while it is clear that the ability to downgrade is essential, DSU's attempt
>> in this case is totally unrelated to Meltdown and Spectre as both BIOS
>> versions long precede the patches.
>
> I have a R410 (I bought used for personal use) where DSU has wanted to
> downgrade the LifeCycle Controller from 1.7.5.4 to 1.6.5.12 for a long
> time now. I have no idea why; 1.7.5.4 is the current version on the
> website and was released almost 2 years ago.
>
> Oddly, DSU also wants to "upgrade" the 10gig NIC firmware. The NIC is
> not even a Dell (just uses the same Intel 82599 chip); it wants to go
> from 0.0.0 to 16.5.20.
>
> --
> Chris Adams <[email protected]>
>
> _______________________________________________
> Linux-PowerEdge mailing list
> [email protected]
> https://lists.us.dell.com/mailman/listinfo/linux-poweredge
_______________________________________________
Linux-PowerEdge mailing list
[email protected]
https://lists.us.dell.com/mailman/listinfo/linux-poweredge
