On Tuesday 28 May 2019 19:52:02 Jonathan Billings wrote:
> I suggest running 'blkid' and 'efibootmgr -v', and double-check that
> the UUID for the CentOS boot entry matches the UUID of the EFI disk.
>
> You can delete and recreate the boot entry with 'efibootmgr', which
> will likely solve the problem.
>
> It depends on the UEFI implementation, but when all the boot entries
> are wrong (UUID changed due to new disk) sometimes it has a fallback
> to find the Windows bootloader and choose it.
>
Thanks Jonathan.
You're probably right about this as whever I try to do makes has effect.
I've been looking in to efibootmgr to see what I need to do to get it working but so far with no luck.
When I run it with -v I don't see any UUID details, nor can i see how I specify them. One thing I have noticed is that in the blkid output below everything refers to HD(2,...... Is that correct?
Below is one of many attempts to set the values correctly.
[root@gary ~]# efibootmgr -v
BootCurrent: 0004
Timeout: 0 seconds
BootOrder: 0002,3002,0000,0003,0004,0005,2001,2002,2003
Boot0000* Linux HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shim.efi)
Boot0002* Windows Boot Manager HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/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* Fedora HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\fedora\shim.efi)
Boot0004* CentOS Linux HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shim.efi)
Boot0005* CentOS HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shimx64.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@gary ~]# efibootmgr -o 4,2001,2002,2
BootCurrent: 0004
Timeout: 0 seconds
BootOrder: 0004,2001,2002,0002
Boot0000* Linux
Boot0002* Windows Boot Manager
Boot0003* Fedora
Boot0004* CentOS Linux
Boot0005* CentOS
Boot2001* USB Drive (UEFI)
Boot2002* Internal CD/DVD ROM Drive (UEFI)
Boot3000* Internal Hard Disk or Solid State Disk
Boot3002* Internal Hard Disk or Solid State Disk
[root@gary ~]# efibootmgr -v
BootCurrent: 0004
Timeout: 0 seconds
BootOrder: 0004,2001,2002,0002
Boot0000* Linux HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shim.efi)
Boot0002* Windows Boot Manager HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/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* Fedora HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\fedora\shim.efi)
Boot0004* CentOS Linux HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shim.efi)
Boot0005* CentOS HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shimx64.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@gary ~]# blkid
/dev/mapper/centos-root: UUID="08c18076-37b4-4f65-b550-e2633ac24d5d" TYPE="xfs"
/dev/sda6: UUID="ifEKlz-O4SM-NevI-X4TQ-lQg2-0lAN-Jb7cZQ" TYPE="LVM2_member" PARTUUID="97e93e7c-a6cf-4532-8f7d-5c0e50987350"
/dev/sda1: LABEL="WINRE" UUID="8262E42362E41DA3" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="277e20d2-ee46-412b-babb-9b2249324ca4"
/dev/sda2: SEC_TYPE="msdos" UUID="1437-B8F4" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="14c4ac1d-abd8-4121-84ee-c05a825920de"
/dev/sda3: LABEL="Windows" UUID="1098EFF798EFD96C" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="f7cefd8f-73e7-4956-bb96-0c03ea21bff9"
/dev/sda4: UUID="12DC737EDC735B45" TYPE="ntfs" PARTUUID="95f8994c-a8ad-48f5-9fbb-eda67c56f6e3"
/dev/sda5: UUID="de45b7f8-d072-4f7e-b9be-a62428db3fbb" TYPE="xfs" PARTUUID="8c00cc67-1063-4889-bdce-6f6259ba1491"
/dev/sda8: LABEL="RECOVERY" UUID="74CCE22FCCE1EAF6" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="7c95ff6d-d945-4479-9100-f66aa81a403e"
/dev/mapper/centos-swap: UUID="30ca7d38-a0df-4473-a1d0-dc7a1fd41458" TYPE="swap"
/dev/mapper/centos-home: UUID="abcedda1-b69b-441e-bced-23a66b2b85f6" TYPE="xfs"
[root@gary ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/centos-root 52403200 7424692 44978508 15% /
devtmpfs 6016292 0 6016292 0% /dev
tmpfs 6034084 0 6034084 0% /dev/shm
tmpfs 6034084 9820 6024264 1% /run
tmpfs 6034084 0 6034084 0% /sys/fs/cgroup
/dev/sda5 1038336 229176 809160 23% /boot
/dev/sda2 204576 85252 119324 42% /boot/efi
/dev/mapper/centos-home 688017172 428947768 259069404 63% /home
tmpfs 1206820 8 1206812 1% /run/user/42
tmpfs 1206820 0 1206820 0% /run/user/0
[root@gary ~]#
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