Thank you Steve
so I attach the output of the command 'sudo efibootmgr -v'.
[sudo] Mot de passe de denis : BootCurrent: 0000 Timeout: 0 seconds BootOrder: 0000,0002,0001,0008,000A,0003,0004,0006,0009 Boot0000* ubuntu HD(1,GPT,bf787f91-fa64-403e-b7bb-a0efcafc5e52,0x800,0x100000)/File(\EFI\UBUNTU\SHIMX64.EFI) Boot0001* USB Floppy/CD VenMedia(b6fef66f-1495-4584-a836-3492d1984a8d,0500000001)..BO Boot0002* USB Hard Drive VenMedia(b6fef66f-1495-4584-a836-3492d1984a8d,0200000001)..BO Boot0003* USB Floppy/CD VenMedia(b6fef66f-1495-4584-a836-3492d1984a8d,0500000000)..BO Boot0004* Hard Drive BBS(HD,,0x0)..GO..NO........O.W.D.C. .W.D.S.2.4.0.G.2.G.0.A.-.0.0.J.H.3.0.................>..Gd-.;.A..MQ..L.9.1.9.0.0.A.0.8.7.1.4.5. . . . . . . . ........BO Boot0006* Realtek PXE B02 D00 BBS(Network,,0x0)..BO Boot0008* ATAPI CD-ROM Drive VenMedia(b6fef66f-1495-4584-a836-3492d1984a8d,0300000001)..BO Boot0009* CD/DVD Drive BBS(CDROM,,0x0)..GO..NO........O.h.p. . . . . . .D.V.D.R.W. . .D.U.8.A.6.S.H.................>..Gd-.;.A..MQ..L.B.4.5.6.2.3.2.9.5.0.8.4. . . . . . . . ........BO Boot000A* UEFI: WDC WDS240G2G0A-00JH30 PciRoot(0x0)/Pci(0x1f,0x2)/Sata(0,65535,0)/HD(1,GPT,bf787f91-fa64-403e-b7bb-a0efcafc5e52,0x800,0x100000)..BO
Thank you Steve
so I attach the output of the command 'sudo efibootmgr -v'.
[sudo] Mot de passe de denis : 0001,0008, 000A,0003, 0004,0006, 0009 bf787f91- fa64-403e- b7bb-a0efcafc5e 52,0x800, 0x100000) /File(\ EFI\UBUNTU\ SHIMX64. EFI) b6fef66f- 1495-4584- a836-3492d1984a 8d,0500000001) ..BO b6fef66f- 1495-4584- a836-3492d1984a 8d,0200000001) ..BO b6fef66f- 1495-4584- a836-3492d1984a 8d,0500000000) ..BO ,0x0).. GO..NO. ....... O.W.D.C. .W.D.S. 2.4.0.G. 2.G.0.A. -.0.0.J. H.3.0.. ....... ....... .>..Gd- .;.A..MQ. .L.9.1. 9.0.0.A. 0.8.7.1. 4.5. . . . . . . . ........BO ,0x0).. BO b6fef66f- 1495-4584- a836-3492d1984a 8d,0300000001) ..BO ,0x0).. GO..NO. ....... O.h.p. . . . . . .D.V.D.R.W. . .D.U.8. A.6.S.H. ....... ....... ..>..Gd- .;.A..MQ. .L.B.4. 5.6.2.3. 2.9.5.0. 8.4. . . . . . . . ........BO 0x0)/Pci( 0x1f,0x2) /Sata(0, 65535,0) /HD(1,GPT, bf787f91- fa64-403e- b7bb-a0efcafc5e 52,0x800, 0x100000) ..BO
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0000,0002,
Boot0000* ubuntu HD(1,GPT,
Boot0001* USB Floppy/CD VenMedia(
Boot0002* USB Hard Drive VenMedia(
Boot0003* USB Floppy/CD VenMedia(
Boot0004* Hard Drive BBS(HD,
Boot0006* Realtek PXE B02 D00 BBS(Network,
Boot0008* ATAPI CD-ROM Drive VenMedia(
Boot0009* CD/DVD Drive BBS(CDROM,
Boot000A* UEFI: WDC WDS240G2G0A-00JH30 PciRoot(