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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1868228 Title: package grub-efi-amd64-signed 1.128.2+2.04-1ubuntu12.2 failed to install/upgrade: installed grub-efi-amd64-signed package post- installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1868228/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
