> Am 04.08.2020 um 08:31 schrieb lpeci <lpeci at 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.