> Am 02.08.2020 um 14:34 schrieb Johnny Hughes <johnny@xxxxxxxxxx>:
>
> On 8/2/20 6:59 AM, Johnny Hughes wrote:
>>> On 8/2/20 2:04 AM, Alessandro Baggi wrote:
>>>
>>> Il 01/08/20 22:03, Greg Bailey ha scritto:
>>>> On 8/1/20 6:56 AM, david wrote:
>>>>> At 02:54 AM 8/1/2020, Alessandro Baggi wrote:
>>>>>> Hi Johnny,
>>>>>> thank you very much for clarification.
>>>>>>
>>>>>> You said that in the centos infrastructure only one server got the
>>>>>> problem.
>>>>>> What are the conditions that permit the breakage? There is a particular
>>>>>> configuration (hw/sw) case that match always the problem or it is
>>>>>> random?
>>>>>>
>>>>>> Thank you
>>>>>
>>>>> I have two servers running Centos 7 on apple hardware (one mac-mini
>>>>> and one mac server). They both failed to reboot a few days ago. So
>>>>> perhaps whatever anti-boot bug hit Centos 8, also hit Centos 7. I
>>>>> can't tell what version got updated since the system simply fails to
>>>>> boot. I don't even get a grub screen. I'll have to rebuild the
>>>>> systems from scratch.
>>>>>
>>>>>
>>>>
>>>> You should be able to boot off of installation media into rescue mode,
>>>> and downgrade the grub2* and/or shim* RPMs.
>>>>
>>>> -Greg
>>>>
>>> I did the downgrade on a fresh install of c8.2 but yum said that all
>>> selected packages (grub2,shim...) are already to the lowest version and
>>> the downgrade is not possibile, ending with "nothing to do".
>>
>> Ok .. We are running through some final testing now for CentOS Linux 8
>> and CentOS Stream .. updates later today for EL8.
>>
>> For CentOS Linux 7 .. I just pushed the latest shim packages (we had to
>> get these signed by Microsoft .. as do all distros that do shim.
>> Microsoft is the official CA for secureboot.
>>
>> So in the next few hours, after the mirrors sync up .. you should be
>> able to fix any EL7 machines.
>>
>> I'll post here again once we have pushed the EL8 and CentOS Stream updates.
>
> OK .. I have also now pushed the CentOS Linux 8 update .. you should see
> an update to SHIM .. the new versions are:
>
> PowerTools/x86_64/os/Packages/shim-unsigned-x64-15-8.el8.x86_64.rpm
> BaseOS/x86_64/os/Packages/shim-ia32-15-15.el8_2.x86_64.rpm
> BaseOS/x86_64/os/Packages/shim-x64-15-15.el8_2.x86_64.rpm
>
> For CentOS Linux 7 .. the new files are:
>
> x86_64/Packages/mokutil-15-8.el7.x86_64.rpm
> x86_64/Packages/shim-ia32-15-8.el7.x86_64.rpm
> x86_64/Packages/shim-unsigned-ia32-15-8.el7.x86_64.rpm
> x86_64/Packages/shim-unsigned-x64-15-8.el7.x86_64.rpm
> x86_64/Packages/shim-x64-15-8.el7.x86_64.rpm
>
> You need only replace the files you currently have installed, not
> install every file.
>
> Please report both positive and negative results.
A previously afftected Aures nino POS-terminal boots just fine with CentOS 7 and shim 15.8.
Now I will test an affected machine (Aures Twist POS terminal) that runs CentOS 8 (well, usually runs CentOS 8, but not now, since it does not boot ... :=>
>
> Thanks,
> Johnny Hughes
>
>
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