yum install epel-release
 
yum install bash-completion
# yum install bash-completion bash-completion-extras

Voir

• https://access.redhat.com/discussions/3021821
• https://forums.centos.org/viewtopic.php?t=71030

#grub2-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=redhat --recheck /dev/sda --force
#grub2-mkconfig -o /boot/grub2/grub.cfg
#grub2-install --modules=part_gpt --target=i386-pc --recheck --boot-directory=/boot /dev/sda --force

#/sbin/grub2-install /dev/sda
#yum reinstall -y grub-efi shim-x64

Paquets EFI

• efi-filesystem
• shim-x64
• efivar
• efivar-libs
• efibootmgr
• grub2-efi
• grub2-efi-modules