备份出错：GNU GRUB version 2.02 beta2

xtx4637

用易数一键备份时屏幕显示：“GNU GRUB version 2.02  beta2
minimal BASH--like line editing is supported For the first word,TAB lists possble command compltions. Anywhere else TAB lists  possible  device or file completions.“从此无法开机始终显示上面英文字，请帮助解决。谢谢！