使用u实复制bcdedit/storeX:\boot\bcd/create{45c374b2-8460-11df-8950-0024814b7667}/d"Ubuntu"/applicationbootsector   bcdedit/storeX:\boot\bcd/set{45c374b2-8460-11df-8950-0024814b7667}deviceboot   bcdedit/storeX:\boot\bcd/set{45c374b2-8460-11df-8950-0024814b7667}path\syslinux.pbr   bcdedit/storeX:\boot\bcd/displayorder{45c374b2-8460-11df-8950-0024814b7667}/addfirst  1.2.3.4.5.6.7.