From: malcolmlewis@cableone.net.invalid   
      
   On Tue, 14 Jul 2020 14:02:54 +0200   
   "Carlos E.R."  wrote:   
      
   > On 14/07/2020 09.28, Andrew wrote:   
   > > Carlos E.R. wrote:   
   > >> On 13/07/2020 14.27, Andrew wrote:   
   > >>> Given a Linux-only system running on two discs (SSD and   
   > >>> "normal"), I have been trying to work out how to change things to   
   > >>> use the UEFI boot mechanism.   
   > >>> The SSD ( /dev/sda ) has room to spare, although not at the start   
   > >>> of the drive.  The system-main partition is also on that drive.   
   > >>> The only instructions I have seen are for Debian-based systems.   
   > >>> I'm aware that I could do an initial install - re-partitioning   
   > >>> the SSD - and that would get me there, is that the only way?   
   > >>> The Motherboard is only a couple of years old - as you can guess   
   > >>> by the use of SSD - so there are no technical constraints.   
   > >>   
   > >> As you are posting on the SUSE group, I take it for a given that   
   > >> you are using openSUSE Leap or Tumbleweed. Well, it is easy, fire   
   > >> up YaST, boot module, change boot method to UEFI. It should   
   > >> propose to create an EFI partition (doesn't need to be at the   
   > >> start), but I don't know if this is contemplated. So, you have to   
   > >> try.   
   > >>   
   > >>   
   > >>   
   > > Thanks, but . . .   
   > > I tried it the first time.  It told me it needed to install a new   
   > > package - which it did - but then told me I had no valid EFI   
   > > partition. YaST Partitioner did not want to let me create a new   
   > > partition (of any kind) in the unassigned area of the SSD.   
   > > Booting a current Gparted, it allowed me to create such a partition.   
   > > Booting back into openSUSE 15.1, YaST Partitioner allowed me to set   
   > > the partition type to EF and format the beast.   
   > > Trying YaST Boot, once again it told me I had no valid EFI   
   > > partition. Reboot (some changes to the partition table used to   
   > > require a reboot) and trying YaST Boot, once again it told me I had   
   > > no valid EFI partition. My new EFI partition is correctly   
   > > formatted, but empty.   
   >   
   >   
   > Well, at this point I'm out of ideas, and I would recommend asking at   
   > the official openSUSE support channels, ie, the mailing list or the   
   > web forum.   
   >   
   Hi   
   I suspect the disk is still 'dos' rather than 'gpt' better to backup   
   and look at bios_grub or start afresh with the disk as gpt (far better   
   idea IMHO).   
      
   --   
   Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)   
   Tumbleweed 20200710 | GNOME Shell 3.36.3 | 5.7.7-1-default   
   Intel DQ77MK MB | Xeon E3-1245 V2 X8 @ 3.40 GHz | Intel/Nvidia   
   up 13:01, 2 users, load average: 0.39, 0.56, 0.89   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)