sudo efibootmgr -v
** 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	VenHw(99e275e7-75a0-4b37-a2e6-c5385e6c00cb)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...a................
Boot0001  ubuntu	VenHw(99e275e7-75a0-4b37-a2e6-c5385e6c00cb)
Boot0007* ATAPI   DVD A  DH16ACSH	BBS(CDROM,,0x0)AMBO
Segmentation fault (core dumped)