On 12/10/2014 05:50 PM, Neil Rickert wrote:

On Wed, 10 Dec 2014 11:05:38 +0000 Radule Soskic wrote:

...

Now I am considering to try boot loader module in Yast2. I see there is an option to install "Grub2-EFI" (Now it's "Grub2" in there).

Would you recommend me to do so? Is it safe?

Yes, I recommend doing that. But it won't work.

To do that, you will need your EFI system partition mounted as "/boot/efi". And you should add a line to "/etc/fstab" to make that permanent.

When you switch to grub2-efi, it should mostly work. But you will get an error message. The problem is that information has to be written to NVRAM. And the attempt to do that will fail unless you booted in EFI mode.

If your firmware gives you an efi shell, you might be able to do a final fixup from there. Otherwise, you can boot the install media to EFI mode, and then use the "efibootmgr" command to add the needed NVRAM entry. The man pages for "efibootmgr" are reasonably good, and a web search will give examples of what you need.

You might also find reports of problems with UEFI booting of linux on HP systems.

I followed your recommendation, thank you. You were right - it didn't work. Installation went OK and now I have gru2-EFI installed, but machine still boots in legacy mode. Regarding NVRAM write, I booted from installation DVD in efi mode and tried efibootmgr. The problem is that boot menu entries shown by efibootmgr are not the same as the list of efi boot options that are shown in F9 boot menu. The diferrence between the two is quite strange -- while F9 menu conatins more than 60hex entries (!?), all named "opensuse", the efibootmgr shows just a few of such entries (can't remember exactly, but no more than 5-6). These two lists clearly are read from diferrent sources. Further, changes that I make through efibootmgr apparently have no effect on F9 menu behavior. Now I ask again - what are my options?. I would like to get 13.2 function in the same way as old 12.3 did. Any suggestions? TIA and best regards, Radule

On 12/12/2014 12:49 PM, jdd wrote:

Le 12/12/2014 12:45, Radule Soskic a écrit :

...

Now I ask again - what are my options?. I would like to get 13.2 function in the same way as old 12.3 did. Any suggestions?

do you really need uefi boot? why not keep legacy?

did you try to rename the EFI entries as I proposed?

jdd

I think your suggestion would fit fine in case I wanted to install grub2 and boot in legacy mode. But my case was diferrent - I already had grub2 legacy, but my computer booted only after I intervene manualy during boot (pressing F9 - boot menu and choosing legacy boot device sata0). In unattended, it goes uefi mode and hangs with an error. My primary problem was that booting wasn't possible unattended. So, it's not that I needed uefi boot -- but, knowing that this problem didn't exist in opensuse 12.3 (when my comp booted in uefi mode and everything was fine), I thought it would be ok if I install grub2-efi and revert to uefi mode. So I followed Neil's suggestion and tried to enable uefi boot mode. In the process I learned that there is something very weird with my uefi boot option list (see my previous post). I am still waiting for new ideas, if any. Best regards, Radule

On 12/15/2014 11:37 AM, jdd wrote:

this is why I proposed to change the names in EFI folder, this prevent boot in EFI mode... and so should prevent the error

I found another solution to my primary problem -- resetting bios options to defaults happened to help. Now, the legacy options are included in the boot order, so when uefi fails system skips to legacy automatically. My concern now is to understand what's wrong with my uefi. As I've mentioned, my boot options list has more than 80 entries named "opensuse". The list seems to get larger with every reboot. And efibootmgr doesn't see them, so I can't delete any. My EFI folder has only one entry named "opensuse". I'll experiment with your idea of renaming it. I'll see how it effects my boot menu entries and/or boot behavior. Radule

On 12/15/2014 01:10 PM, jdd wrote:

Le 15/12/2014 12:09, Radule Soskic a écrit :

...

My EFI folder has only one entry named "opensuse". I'll experiment with

be warned that I mean the EFI folder in the boot fat partition (sdx1 or sdx2 usually, easy to know: FAT and small

I'm not sure how/if it's mounted, specially on non EFI boot (that is if you boot legacy)

jdd

Yes, I know that, thank you. Since I went through grub2-efi install I made efi partition permanently mounted in the proper place, so that part is not a problem. I'll play with this later this evening. RaduleN�����r��y隊Z)z{.�ﮞ˛���m�)z{.��+�:�{Zr�az�'z��j)h���Ǿ� ޮ�^�ˬz��