我目前在 UEFI 系统上双启动 Windows 和 Ubuntu。当我运行：“sudo efibootmgr -v”时，输出如下：
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0002,0003,0004,0006,003A,0005,0000,0001,0038,0039
Boot0000* ubuntu HD(1,GPT,c2644bf2-33af-4372-a07a-52541287e412,0x800,0xfa000)/File(\EFI\ubuntu\grubx64.efi)
Boot0001* Windows Boot Manager HD(1,GPT,c2644bf2-33af-4372-a07a-52541287e412,0x800,0xfa000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...i................
Boot0002* P0: ST500LT012-9WS142 BBS(16,,0x0)AMBO
Boot0003* P4: PLDS DVD+/-RW DU-8A5HH BBS(18,,0x0)AMBO
Boot0004* Atheros Boot Agent BBS(20,,0x0)AMBO
Boot0005* UEFI OS HD(1,GPT,c2644bf2-33af-4372-a07a-52541287e412,0x800,0xfa000)/File(\EFI\BOOT\BOOTX64.EFI)
Boot0006* P1: LITEONIT LMT-32L3M BBS(21,,0x0)AMBO
Boot0038* UEFI: Network Card PciRoot(0x0)/Pci(0x1c,0x5)/Pci(0x0,0x0)/MAC(7845c4c0516f,0)/IPv4(0.0.0.0:0<->0.0.0.0:0,0,0)AMBO
Boot0039* UEFI: Network Card PciRoot(0x0)/Pci(0x1c,0x5)/Pci(0x0,0x0)/MAC(7845c4c0516f,0)/IPv6([::]:<->[::]:,0,0)AMBO
Boot003A* ubuntu HD(1,GPT,c2644bf2-33af-4372-a07a-52541287e412,0x800,0xfa000)/File(\EFI\Ubuntu\grubx64.efi)
Boot003B* CD/DVD Drive BBS(CDROM,,0x0)AMGOAMNO........o.P.L.D.S. .D.V.D.+./.-.R.W. .D.U.-.8.A.5.H.H....................A...........................>..Gd-.;.A..MQ..L.T.T.K.Y.5.0.0.5.1.8.C.2.4.B.1.D.A.K.1.0......AMBO
Boot003C* Hard Drive BBS(HD,,0x0)AMGOAMNO........|.P.0.:. .S.T.5.0.0.L.T.0.1.2.-.9.W.S.1.4.2....................A..................1.N........>.;[email protected].;.A..MQ..L.P.0.:. .S.T.5.0.0.L.T.0.1.2.-.9.W.S.1.4.2......AMBOAMNO........~.P.1.:. .L.I.T.E.O.N.I.T. .L.M.T.-.3.2.L.3.M....................A..................1.N........>.;......B..Gd-.;.A..MQ..L.P.1.:. .L.I.T.E.O.N.I.T. .L.M.T.-.3.2.L.3.M......AMBO
Boot003D* Network Card BBS(Network,,0x0)AMGOAMNO........i.A.t.h.e.r.o.s. .B.o.o.t. .A.g.e.n.t.........................rN.D+..,.\...........:..Gd-.;.A..MQ..L.A.t.h.e.r.o.s. .B.o.o.t. .A.g.e.n.t......AMBO
Boot003F* Hard Drive BBS(HD,,0x0)AMGOAMNO........u.S.a.n.D.i.s.k. .C.r.u.z.e.r. .G.l.i.d.e. .1...2.7....................A.......................H..Gd-.;.A..MQ..L.S.a.n.D.i.s.k. .C.r.u.z.e.r. .G.l.i.d.e. .1...2.7......AMBOAMNO........|.P.0.:. .S.T.5.0.0.L.T.0.1.2.-.9.W.S.1.4.2....................A..................1.N........>.;[email protected].;.A..MQ..L.P.0.:. .S.T.5.0.0.L.T.0.1.2.-.9.W.S.1.4.2......AMBOAMNO........~.P.1.:. .L.I.T.E.O.N.I.T. .L.M.T.-.3.2.L.3.M....................A..................1.N........>.;......B..Gd-.;.A..MQ..L.P.1.:. .L.I.T.E.O.N.I.T. .L.M.T.-.3.2.L.3.M......AMBO
因此，目前有两个 ubuntu 选项。我想删除 Boot003A，因为它位于“/EFI/Ubuntu/grubx64.efi”，而我认为它应该是“/EFI/ubuntu/grubx64.efi”
于是我运行“sudo efibootmgr -b 3A -B”，输出如下：
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0002,0003,0004,0006,0005,0000,0001,0038,0039
Boot0000* ubuntu
Boot0001* Windows Boot Manager
Boot0002* P0: ST500LT012-9WS142
Boot0003* P4: PLDS DVD+/-RW DU-8A5HH
Boot0004* Atheros Boot Agent
Boot0005* UEFI OS
Boot0006* P1: LITEONIT LMT-32L3M
Boot0038* UEFI: Network Card
Boot0039* UEFI: Network Card
Boot003B* CD/DVD Drive
Boot003C* Hard Drive
Boot003D* Network Card
Boot003F* Hard Drive
看起来一切都正常。但是，关机并启动时，启动菜单似乎没有变化。当我运行“sudo efibootmgr -v”时，输出与原来相同。有什么建议吗？
答案1
所以，我实际上解决了这个问题。出于某种原因，第一个 ubuntu 启动选项是我可以删除的。这个选项位于“/EFI/ubuntu/grubx64.efi”。不知道为什么，因为案例不一致，但至少现在它可以工作了。