Installer doesn't find SSD

After one night trying to install Leap 15.3. on my HP ENVY x360, I hope someone here can help me.
The installer doesn’t find the SSD. Also a Live-Version of 15.2 booted from USB doesn’t find it.

My configuration: HP ENVY x360 with Intel i7 and Samsung 1TB SSD. Windows 10 Home Pre-installed.

I reduced the Windows partition to ~200GB. There is a not assigned partition of 700GB available for Linux.
The Fast Boot in Windows is switched off as well as the Scure Boot in UEFI.
In the UEFI configuration the SSD is set to “Intel Rapid Storage Technology” and there is no option to change this to AHCI which seems to be the root problem.
Can someone help, please?

That is a contradictory expression. Seen from the installer, all disk space that is in a partition is not unassigned. So better remove partitions that cover the space you want openSUSE installed on. Then the installer will probably see the free space.

I just found these over the net but I CANNOT TELL IF THEY WILL BE USEFUL OR SAFE in your case, use at your own risk:
https://support.thinkcritical.com/kb/articles/switch-windows-10-from-raid-ide-to-ahci
https://sciactive.com/2020/12/04/how-to-install-ubuntu-on-acer-spin-5-sp513-54n-for-the-perfect-linux-2-in-1/

Hope that helps.

This Laptop has a messed up BIOS:

Do what they recommend.

If you know the answer, why ask?

Can someone help, please?

Is it NVMe or SATA SSD?

It is an NVMe SSD (Samsung)

Sorry, what I wrote might be a bit wrong. I reduced the Windows partition, and the now free space has not been touched. That is what I meant by “not assigned”

Thank you for the idea. I have seen these recommendations, but the problem is item 5:

“Change the SATA Operation mode to AHCI from either IDE or RAID”
My UEFI doesn’t have the option to switch to AHCI. It is fixed on “Intel Rapid Storage Technology” and that cannot be changed.

Thank you for the hint, but this seems to be a different problem. In this article it is described, that the Ubuntu will not boot at all. In my case, I can boot the SUSE installation (Also a Life Version boots just fine), but during the installation, my SSD is not detected.

I am afraid you are out of luck. This BIOS setting changes how NVMe is accessed so that standard NVMe driver will no more detect it. Patches for Linux kernel were suggested but not accepted to my best knowledge. Unless you are ready to roll out custom kernel with these patches (assuming they still apply), you probably cannot install Linux on this system.

Try checking if there is BIOS update. Try asking manufacturer of your notebook or corresponding support forums. But it looks like Windows-only device.

They have HP Notebook Hard Drives & Solid State Drives Identifying, Preventing, Diagnosing and Recovering from Drive Failures Care and Maintenance Measures at http://h10032.www1.hp.com/ctg/Manual/c02876562

I am not sure whether it is the same issue but when I bought a new desktop P/C (Dell) last year with a SSD and and old style hard drive - the opensuse install would not reconise the SSD. This was down to the P/C Sata settings - which I changed from ‘raid’ to ‘ahci’ in the uefi bios (which was a saga by itself as the change gave me a BSOD in Windows until I made the change in safe mode). After that Opensuse installed fine (using the SSD drive).

Thank you all for your support. Currently I use the pre-installed Windows and I have SUSE running in a VM. Not a perfect solution but I can live with this for the moment.
The BIOS is updated and the HP “Support” just tells me, that “other operating systems are not supported on a system with Windows pre-installed”.

AHCI is not applicable for NVME drive.

You need to turn off Intel Rapid Storage Technology, consult with manufacturer for this. Intel Rapid Storage Technology - Wikipedia
https://www.youtube.com/watch?v=rSn34Gv3-D4
Redirecting
linux - How can I safely disable Intel RST? - Super User