Which do I boot to?

Fooling with the installation of LEAP 42.1. Liked what I’ve seen so for, for the most part. Still some hiccups to pursue, but that’s for later.
Had it up and running once, several days, but during experimentation I managed to mess it all up. No big deal. I’m experimenting so I’m not at all unhappy that I’ve got to reinstall the OS. I may have to do it a couple more times as I fiddle around.:wink:

But as I’m getting up there in years, I can’t seem to wrap my mind around some of the new concepts quite as easily anymore.
UEFI / BTRFS among them. But I intend to use the new BTFRS file format for the file system in the end.
I will never dual boot anything on the system.
What I’ve got in my head at this point is that UEFI is really only of any consequence if dual booting or maybe only if dual booting into <<shudder>> a Windows partition.

So the questions are these:

  1. Is UEFI of any consequence since I’ll never put anything else other than openSuSE on the system? (Meaning is it worth my time digging into this and racking my brain to try and really understand it or should I stop obsessing and just move on?)

When I’m starting up the system cold, hit F12 to get a boot menu and I’ll see multiple boot options for each device.
There is a PO - CD drive, P1 harddirve1, P2 harddrive 2…etc. BUT also a UEFI - CD drive, UEFI harddrive1, UEFI harddrive 2, …etc. as choices for which device I want to boot from.

  1. Given the above detail, is there any reason I would want to ever use the UEFI labelled boot device or should I just always boot from the Px -device menu choices?

Thanks for the push!

UEF is actually a lot simpler then MBR booting there is only one way to do it.

Is it better???
But if using GPT disk partitions it is better to just use EFI because legacy (MBR) can introduce problems even though in theory it is supported

If installing you need to use EFI boot for the install media if you are installing for EFI boot of the OS. You can boot in legacy and manually change the defaults but you really need to understand what you are doing.

Removing OS’s can be a problem because changes are made to the EFI flash memory and int eh efi boot partition on install and entries for defunct OS need to be manually removed and I have never seen previsions to remove entries. You can edit the table from Linux however but that may require some advanced understanding. No press a button and it is done.

I also recommend UEFI booting as the better way.

… and I agree, as well. Also note, if you are not dual-booting with Windows, you are going to miss out on most of the hair-pulling adventures normally associated with UEFI.:wink:

Outstanding. Installing via UEFI CD this time and will boot from the UEFI HDD choice.
Thanks all!

I feel like such a noob. Been installing openSuSE since 8.whatever it was back oh so long ago, and suddenly feel pretty ignorant.
Still having difficulty but I can’t ask intelligent questions unless I get some basics understood clearly.
Therefore, given this image: http://paste.opensuse.org/40152200 of my Gigabyte 990FXA-UD5 R5 Boot Menu…

As discussed, I would install using the UEFI option for the ASUS disc drive IF intent is to also use the UEFI option for booting.

  1. Does anyone know what the j represents at the end of those labels for the ASUS DVD drive?

  2. What is it commonly called if I use P3: ASUS instead of UEFI: ASUS? Legacy booting?
    I’ve never had so many labels on a boot menu but want to use the correct jargon going forward.
    My first new mainboard in 7 or 8 years so a great many things have changed.

  3. Is the opensuse-secureboot label infact the UEFI booting option, post installation?

Thanks for the input!

Yes.

As for the other questions: I’m not sure what the “j” means. It looks like noise.

The “P1”, etc, are probably for legacy booting though I’m not sure. And whether they work will depend on whether the devices have been initialized for legacy booting.