I don't know if this additional information helps. Looking at he efibootmgr output, is the centos entry pointing to the right place? Also, any idea why the update isn't being make permenant? [root at localhost boot]# parted GNU Parted 3.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) print Model: ATA ST1000LM014-1EJ1 (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 512B/4096B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 1049kB 683MB 682MB ntfs Basic data partition hidden, diag 2 683MB 892MB 210MB fat16 EFI System Partition boot 4 1089MB 212GB 211GB ntfs Basic data partition 3 212GB 213GB 524MB ext4 6 213GB 214GB 524MB xfs 7 214GB 978GB 765GB lvm 5 978GB 1000GB 21.8GB ntfs Basic data partition hidden (parted) quit [root at localhost boot]# efibootmgr -v BootCurrent: 0000 Timeout: 0 seconds BootOrder: 0003,2002,0002,3002,0001,2001,2003 Boot0000* Internal CD/DVD ROM Drive (UEFI) ACPI(a0341d0,0)PCI(1f,2)SATA(2,0,0)CD-ROM(1,2b,272c)RC Boot0001* Fedora HD(2,145800,64000,14c4ac1d-abd8-4121-84ee-c05a825920de)File(\EFI\fedora\shim.efi)RC Boot0002* Windows Boot Manager HD(2,145800,64000,14c4ac1d-abd8-4121-84ee-c05a825920de)File(\EFI\Microsoft\Boot\bootmgfw.efi)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.}.................... Boot0003* CentOS HD(1,800,145000,277e20d2-ee46-412b-babb-9b2249324ca4)File(\EFI\centos\shim.efi) Boot2001* USB Drive (UEFI) RC Boot2002* Internal CD/DVD ROM Drive (UEFI) RC Boot3000* Internal Hard Disk or Solid State Disk RC Boot3002* Internal Hard Disk or Solid State Disk RC [root at localhost boot]#