Antes de instalar o 16.04, desativei a inicialização rápida e a inicialização segura no BIOS. A instalação foi ótima, e eu fiz atualizações durante a instalação. É reiniciado, e o menu Grub surgiu com opções para o Ubuntu e o Windows. Quando eu reiniciei novamente, uma tela preta com a mensagem "Reinicie e selecione dispositivo de inicialização adequado ou insira mídia de inicialização no dispositivo selecionado e pressione uma tecla". Eu coloquei o USB que tem Ubuntu nele, e entrei no modo ao vivo sem reinstalar. Então eu usei o reparo do Boot para ver se isso resolveria o problema. Eu reiniciei, e o menu Grub apareceu, e tudo estava bem até que eu reiniciei novamente, então eu peguei a mesma tela preta que antes de perguntar para Reinicializar e Selecionar o Dispositivo de Inicialização Adequada. Toda vez que eu quero usar o Windows, ou Ubuntu, eu tenho que usar o reparo de inicialização, e é a mesma coisa toda vez. Aqui está a saída do pastebin do reparo de inicialização
Link link
============================= Boot Info Summary: ===============================
=> No boot loader is installed in the MBR of /dev/sda.
=> No known boot loader is installed in the MBR of /dev/sdb.
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda2: __________________________________________________________________________
File system: vfat
Boot sector type: Windows 8/2012: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /EFI/ubuntu/grub.cfg /EFI/Boot/bkpbootx64.efi
/EFI/Boot/bootx64.efi /EFI/Boot/fbx64.efi
/EFI/ubuntu/fwupx64.efi /EFI/ubuntu/grubx64.efi
/EFI/ubuntu/mmx64.efi /EFI/ubuntu/shimx64.efi
/EFI/Microsoft/Boot/bkpbootmgfw.efi
/EFI/Microsoft/Boot/bootmgfw.efi
/EFI/Microsoft/Boot/bootmgr.efi
/EFI/Microsoft/Boot/bootx64.efi
/EFI/Microsoft/Boot/memtest.efi
/boot-repair/log/20171110_041246/sda2/bootx64.efi
/boot-repair/log/20171110_043850/sda2/bootx64.efi
/boot-repair/log/20171110_153737/sda2/bootx64.efi
/boot-repair/log/20171110_163542/sda2/bootx64.efi
sda3: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
Mounting failed: mount: unknown filesystem type ''
sda4: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /Windows/System32/winload.exe
sda5: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda6: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /BOOT/bcd
sda7: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 16.04.3 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab
sda8: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sdb1: __________________________________________________________________________
File system: iso9660
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: unknown filesystem type ''
mount: /dev/sdb1 is already mounted or /mnt/BootInfo/sdb1 busy
sdb2: __________________________________________________________________________
File system: vfat
Boot sector type: FAT16
Boot sector info: According to the info in the boot sector, sdb2 starts
at sector 0. But according to the info from fdisk,
sdb2 starts at sector 3006684. According to the info
in the boot sector, sdb2 has 0 sectors.
Mounting failed: mount: unknown filesystem type ''
mount: /dev/sdb1 is already mounted or /mnt/BootInfo/sdb1 busy
mount: /dev/sdb2 is already mounted or /mnt/BootInfo/sdb2 busy
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 1 1,953,525,167 1,953,525,167 ee GPT
GUID Partition Table detected.
Partition Attrs Start Sector End Sector # of Sectors System
/dev/sda1 R 2,048 821,247 819,200 Windows Recovery Environment (Windows)
/dev/sda2 821,248 1,435,647 614,400 EFI System partition
/dev/sda3 1,435,648 1,697,791 262,144 Microsoft Reserved Partition (Windows)
/dev/sda4 1,697,792 1,510,747,293 1,509,049,502 Data partition (Windows/Linux)
/dev/sda5 R 1,906,462,720 1,907,386,367 923,648 Windows Recovery Environment (Windows)
/dev/sda6 R 1,907,386,368 1,953,523,711 46,137,344 Windows Recovery Environment (Windows)
/dev/sda7 1,510,748,160 1,885,595,647 374,847,488 Data partition (Linux)
/dev/sda8 1,885,595,648 1,906,462,719 20,867,072 Swap partition (Linux)
Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set
Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 7.5 GiB, 8004304896 bytes, 15633408 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 * 0 3,100,799 3,100,800 0 Empty
/dev/sdb2 3,006,684 3,011,355 4,672 ef EFI (FAT-12/16/32)
/dev/sdb1 overlaps with /dev/sdb2
GUID Partition Table detected, but does not seem to be used.
Partition Attrs Start Sector End Sector # of Sectors System
/dev/sdb1 + R 0 3,100,743 3,100,744 Data partition (Windows/Linux)
/dev/sdb2 + R 3,006,684 3,011,355 4,672 Data partition (Windows/Linux)
Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 46F42B8AF42B7B77 ntfs Recovery
/dev/sda2 422B-EF2A vfat ESP
/dev/sda3
/dev/sda4 34061874061838F6 ntfs Gateway
/dev/sda5 AE8890AE88907715 ntfs
/dev/sda6 C6B032CEB032C529 ntfs Push Button Reset
/dev/sda7 d1018474-36c8-4302-99ed-8d013235298a ext4
/dev/sda8 be01379b-f070-4d59-9ada-fe1cf6aeae09 swap
/dev/sdb1 2017-08-01-11-51-33-00 iso9660 Ubuntu 16.04.3 LTS amd64
/dev/sdb2 398E-230F vfat
No final do resumo do reparo de inicialização, ele diz
An error occurred during the repair.
You can now reboot your computer. Please do not forget to make your BIOS boot on sda2/EFI/ubuntu/shimx64.efi file!
You may want to retry after deactivating the [Backup and rename Windows EFI files] option.
Entrei no BIOS e não há opção para inicializar no sda2. Ainda não inicializa no menu do Grub. Qualquer ajuda seria muito apreciada