As requested by nrickert - this thread relates to windows 8/12.3 dual boot
Sorry for repetition - I didn’t know how to link through…
https://forums.opensuse.org/english/get-technical-help-here/install-boot-login/485517-opensuse-windows8-dual-boot-installation-questions-secure-boot-uefi-gpt-12.html
HP Pavillion G4 laptop 500GB HDD/4 Gb RAM
with Windows 8 pre-installed - I used DVD to install 12.3 64 bit without problems
EXCEPT default boot is to Windows - no option to boot 12.3
However, can boot 12.3 perfectly well from “bios”
Here is HDD setup from gdisk:
Number Start (sector) End (sector) Size Code Name
1 2048 821247 400.0 MiB 2700 Basic data partition
2 821248 1353727 260.0 MiB EF00 EFI system partition
3 1353728 1615871 128.0 MiB 0C01 Microsoft reserved part
4 1615872 481991501 229.1 GiB 0700 Basic data partition
5 481992704 482320383 160.0 MiB EF00 primary
6 924135424 976773119 25.1 GiB 0700 Basic data partition
7 482320384 486529023 2.0 GiB 0700 primary
8 486529024 528474111 20.0 GiB 0700 primary
9 528474112 924135423 188.7 GiB 0700 primary
and the bootmgr:
BootCurrent: 0002
Timeout: 0 seconds
BootOrder: 3000,3001,3002,2001,2002,2003
Boot0000* Windows Boot Manager
Boot0001* opensuse
Boot0002* opensuse-secureboot
Boot2001* USB Drive (UEFI)
Boot2002* Internal CD/DVD ROM Drive (UEFI)
Boot3000* Internal Hard Disk or Solid State Disk
Boot3001* Internal Hard Disk or Solid State Disk
Boot3002* Internal Hard Disk or Solid State Disk
As suggested by nrickert - if I type “efibootmgr -n 0002” as root, a restart takes me to grub and I can boot either Windows8 or 12.3 as I choose
I would appreciate input as to how to make this behaviour default…
PS I am so irmpressed by the extent of expertise and help available here!