OK, cables and plugs ok but perhaps dirty contacts so swapped the SSD and WD hard drive and now I think all good although I haven’t tried to boot to SSD yet.
Returning now to efi, what is wrong with my efi and NVMe setup other than block size?
If I do a new installation how do I change the block size during the Expert Partitioner phase.
Hi
The BIOS Boot partition is for legacy boot with a gpt disk, if it’s working and your happy leave it be… 
I did the change to 4k from a live rescue usb… not during install.
To see what it’s set to use;
nvme id-ns -H /dev/nvme0n1 | grep "LBA Format"
Again, I would revisit if you plan on re-installing, else leave it well enough alone and rock on 
Not sure what I am looking at or for regarding EFI boot.
Everything is working now and this is what I have:-
alastair@localhost:~> lsblk -l
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 238.5G 0 disk
sda1 8:1 0 100M 0 part
sda2 8:2 0 16M 0 part
sda3 8:3 0 237.9G 0 part
sda4 8:4 0 499M 0 part
sdb 8:16 0 931.5G 0 disk
sdb1 8:17 0 931.5G 0 part
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 1.8T 0 disk
nvme0n1p1 259:1 0 8M 0 part
nvme0n1p2 259:2 0 512M 0 part /boot/efi
nvme0n1p3 259:3 0 2G 0 part [SWAP]
nvme0n1p4 259:4 0 1.8T 0 part /var
alastair@localhost:~> sudo efibootmgr
[sudo] password for root:
BootCurrent: 000C
Timeout: 5 seconds
BootOrder: 000C,0015,000E,000F,0009,0010,000D,000A,0011,0013,0000,0001,0002,0003,0004,0005,0006,0007,0008,000B,0012
Boot0000 Startup Menu
Boot0001 System Information
Boot0002 Bios Setup
Boot0003 3rd Party Option ROM Management
Boot0004 System Diagnostics
Boot0005 System Diagnostics
Boot0006 System Diagnostics
Boot0007 System Diagnostics
Boot0008 Boot Menu
Boot0009 USB:
Boot000A* Samsung SSD 850 PRO 256GB
Boot000B Network Boot
Boot000C* opensuse
Boot000D* IBA GE Slot 00C8 v1550
Boot000E USB:
Boot000F* hp PLDS DVDRW DU8AESH
Boot0010* hp PLDS DVDRW DU8AESH
Boot0011* WD1003FBYX-23 43W7629 42C0401IBM
Boot0012 HP Recovery
Boot0013* NVMe Slot 3
Boot0015* Windows Boot Manager
alastair@localhost:~> nvme id-ns -H /dev/nvme0n1 | grep "LBA Format"
nvme: command not found
alastair@localhost:~> sudo nvme id-ns -H /dev/nvme0n1 | grep "LBA Format"
[3:0] : 0 Current LBA Format Selected
LBA Format 0 : Metadata Size: 0 bytes - Data Size: 512 bytes - Relative Performance: 0 Best (in use)
alastair@localhost:~> inxi -Fxxz
System: Kernel: 5.3.18-59.24-default x86_64 bits: 64 compiler: gcc v: 7.5.0 Desktop: KDE Plasma 5.18.6 tk: Qt 5.12.7
wm: kwin_x11 dm: SDDM Distro: openSUSE Leap 15.3
Machine: Type: Desktop System: Hewlett-Packard product: HP Z640 Workstation v: N/A serial: <filter> Chassis: type: 6
serial: <filter>
Mobo: Hewlett-Packard model: 212A v: 1.01 serial: <filter> UEFI: Hewlett-Packard v: M60 v02.57 date: 05/21/2021
CPU: Topology: 6-Core model: Intel Xeon E5-2620 v3 bits: 64 type: MT MCP arch: Haswell rev: 2 L2 cache: 15.0 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 57471
Speed: 1422 MHz min/max: 1200/3200 MHz Core speeds (MHz): 1: 1351 2: 1582 3: 2828 4: 2579 5: 1524 6: 2627
7: 1832 8: 2462 9: 2250 10: 2544 11: 1842 12: 2588
Graphics: Device-1: NVIDIA G98 [Quadro NVS 295] driver: nouveau v: kernel bus ID: 02:00.0 chip ID: 10de:06fd
Display: x11 server: X.org 1.20.3 compositor: kwin_x11 driver: nouveau unloaded: fbdev,modesetting,vesa
alternate: nv,nvidia resolution: <xdpyinfo missing>
OpenGL: renderer: NV98 v: 3.3 Mesa 20.2.4 direct render: Yes
Audio: Device-1: Intel C610/X99 series HD Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel bus ID: 00:1b.0
chip ID: 8086:8d20
Sound Server: ALSA v: k5.3.18-59.24-default
Network: Device-1: Intel Ethernet I218-LM vendor: Hewlett-Packard driver: e1000e v: 3.2.6-k port: 3040 bus ID: 00:19.0
chip ID: 8086:15a0
IF: eth0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives: Local Storage: total: 2.96 TiB used: 1.09 TiB (36.8%)
ID-1: /dev/nvme0n1 vendor: Kingston model: SNVS2000GB size: 1.82 TiB speed: 31.6 Gb/s lanes: 4 serial: <filter>
temp: 29 C
ID-2: /dev/sda vendor: Samsung model: SSD 850 PRO 256GB size: 238.47 GiB speed: 6.0 Gb/s serial: <filter>
ID-3: /dev/sdb vendor: Western Digital model: WD1003FBYX-23 43W7629 42C0401IBM size: 931.51 GiB speed: 6.0 Gb/s
serial: <filter>
Partition: ID-1: / size: 1.82 TiB used: 8.63 GiB (0.5%) fs: btrfs dev: /dev/nvme0n1p4
ID-2: /home size: 1.82 TiB used: 8.63 GiB (0.5%) fs: btrfs dev: /dev/nvme0n1p4
ID-3: /opt size: 1.82 TiB used: 8.63 GiB (0.5%) fs: btrfs dev: /dev/nvme0n1p4
ID-4: /tmp size: 1.82 TiB used: 8.63 GiB (0.5%) fs: btrfs dev: /dev/nvme0n1p4
ID-5: /var size: 1.82 TiB used: 8.63 GiB (0.5%) fs: btrfs dev: /dev/nvme0n1p4
Swap: ID-1: swap-1 type: partition size: 2.00 GiB used: 0 KiB (0.0%) priority: -2 dev: /dev/nvme0n1p3
Sensors: System Temperatures: cpu: 32.0 C mobo: N/A gpu: nouveau temp: 52 C
Fan Speeds (RPM): N/A
Info: Processes: 274 Uptime: 5h 46m Memory: 31.27 GiB used: 1.57 GiB (5.0%) Init: systemd v: 246 runlevel: 5
target: graphical.target Compilers: gcc: N/A Shell: bash v: 4.4.23 running in: konsole inxi: 3.1.00
alastair@localhost:~>
Tell me what command to use to show you me the efi issue?
Hi
It’s this partition…
nvme0n1p1 259:1 0 8M 0 part
But you have an efi partition as well, the above is a remnant not removed after your previous install in ‘Legacy’ to boot from a gpt disk…
One of the reasons I pre-configure my disks prior to any install to setup gpt, sectors etc… then in YaST Partition tell it to use the existing partitions and setup from there.