> Am 04.08.2020 um 08:31 schrieb lpeci <lp...@roa.es>:
> 
> 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

As there are updated and working packages available now, downgrading is no 
longer needed, another update will also work.

# yum makecache
# yum upgrade

You should see a shim-x64 package with version 15.8 which is the working 
version (15.7 caused the problem)

> 
>     #exit
> 
>     #reboot
> 
> I hope you can fix it with these steps.

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