grub或內核修復
grub修復
grub > ls
grub > ls (hd0,msdos1)/grub2
grub> linux16 /vmlinuz-xxxxx root=/dev/mapper/centos-root
grub> initrd16 /initramfs-.xxxxx.img
grub> boot
[root@google gohb]# sudo grub2-mkconfig -o /boot/grub2/grub.cfg
重啓,正常登陸
內核修復
按Esc鍵