Ubuntu
shim-signed package

  1. Bug #1718582
  2. Comment #2

Comment 2 for bug 1718582

Revision history for this message
Steve Langasek (vorlon) wrote :

Your log shows:

Found linux image: /boot/vmlinuz-4.10.0-28-generic
find: ‘/boot/efi/EFI/ubuntu/F-8"?>\n. <s’: Input/output error
find: ‘/boot/efi/EFI/ubuntu/OST_OS</.ret’: No such file or directory
find: ‘/boot/efi/EFI/ubuntu/nvocatio.nCo’: Input/output error
find: ‘/boot/efi/EFI/ubuntu/Flags>SO.S_A’: Input/output error
Found Windows Boot Manager on /dev/sda1@/EFI/Microsoft/Boot/bootmgfw.efi

This suggests that you have a corrupted EFI System Partition which you will need to repair manually.