CentOS 7.6.1810 UEFI/Shim issue .. feedback wanted !

We got some reports from people unable to reboot their nodes after
updating to 7.6.1810, and basically to newer shim (v15).
It seems to affect only nodes in UEFI mode, but without SecureBoot.

We wrote that in the ReleaseNotes, including a link to the bug report :
<a href="" title=""></a>

We have now a workaround in that bug report, and also a new interim
build (not signed by Microsoft yet) but we need feedback , as the only
node on which I could test this myself is my old 2008 iMac computer .. :-(

Once we'll have enough positive (but also negative) feedback about this
new build, we'll be able to send to Microsoft for signing and so
consider that bug closed. Worth also noticing that if we can have that
ready in the updates, we'll be able to spin a monthly iso that will then
work on such uefi nodes too.

Kind Regards,


Re: CentOS 7.6.1810 UEFI/Shim issue .. feedback wanted

By Anand Buddhdev at 12/06/2018 - 05:07

Hi Fabian,

I was affected by this. After an update, one Dell R710 server that I
maintain, failed to boot. The error I saw was the same as someone else
who also posted here. I didn't know how to fix it, and needed the server
to be running, so I just reinstalled it, and switched to biosboot while
at it. Fortunately, this was a backup server, so the impact was low. It
has a production counterpart, but I don't dare update it, and I cannot
risk it failing to boot after an update.


On 06/12/2018 10:44, Fabian Arrotin wrote: