sudo efibootmgr -b 0000
** Warning ** : Boot000a is not EFI 1.10 compliant (lowercase hex in name)
** Warning ** : Boot000b is not EFI 1.10 compliant (lowercase hex in name)
** Warning ** : please recreate these using efibootmgr to remove this warning.
BootCurrent: 000C
Timeout: 2 seconds
BootOrder: 000C,0007,0009,000A,000B,0000,0008,0001
Boot0000  Windows Boot Manager
Boot0001  ubuntu
Boot0007* ATAPI   DVD A  DH16ACSH
Boot0007
Boot0008  WDC WD5000AAKX-08U6AA0
Boot0008*
Boot0009  UEFI: WDC WD5000AAKX-08U6AA0
Boot000A  HL-DT-STDVD-RAM GH22NS30
Boot000B  InnostorUFD
Boot000C* UEFI: InnostorUFD
Boot000a*
Boot000b*