[CentOS] Fixing grub/shim issue Centos 7

Tue Aug 4 14:53:22 UTC 2020
Johnny Hughes <johnny at centos.org>

On 8/4/20 9:51 AM, Johnny Hughes wrote:
> On 8/4/20 1:31 AM, lpeci wrote:
>> Hi all,
>>
>> I had the same problem with my UEFI bios machine and I fixed it so for
>> Centos 7:
>>
>> 1) Boot from an rescue linux usb
>>
>> 2) When the rescue system is running:
>>
>>     2.1) #chroot /mnt/sysimage
>>
>> 3) Config network:
>>
>>     3.1) # ip addr add X.X.X.X/X dev X
>>
>>     3.2) # ip route add default via X.X.X.X    <--- default router
>>
>> 4) And finally:
>>
>>     #yum downgrade shim\* grub2\* mokutil
>>
>>     #exit
>>
>>     #reboot
>>
>> I hope you can fix it with these steps.
>>
>> El 4/8/20 a las 0:56, Nicolas Kovacs escribió:
>>> Le 03/08/2020 à 19:24, david a écrit :
>>>> After trying several paths, some suggested on this list, here's my
>>>> results.
>>> Hi,
>>>
>>> Just back from a hiking trip. One of my clients sent me a message that
>>> his
>>> CentOS server refuses to boot. So tomorrow I have to drive there to
>>> figure out
>>> what's going on. I guess there's a high probability it's the issue
>>> discussed in
>>> this thread.
>>>
>>> Simple question: besides a tsunami of mailing list and forum messages,
>>> is there
>>> some to-the-point reliable information about this mess ? As well as some
>>> to-the-point reliable information about how to fix it ?
>>>
>>> Thanks,
>>>
>>> Niki
> 
> The issues should now be resolved.
> 
> If you just mount /mnt/sysimage, set an ip address and upgrade (to get
> th new shim) .. then:
> 
> yum reinstall <latest-version>
> 
> Everything should just work.
> 

sorry ..

yum reinstall kernsl-<latest_version>


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