Arch Linux

IKnowWhyImHere

Member

Registered: 2026-04-02

Posts: 3

Issue with Intel RST refusing to go away.

I am installing Arch on my Lenovo Yoga C740 and am having trouble with Intel RST. I first ran into this issue when trying to create the partitioning table and saw that fdisk -l listed two separate nvme's despite the computer only having one. I eventually did googling, identified that as a problem caused by Intel RST, then disabled it in the boot manager. The boot manager stated that the entire disk would be overwritten, running fdisk -l in the live environment again resulted in me seeing nvme0n1 as well as nvme1n1 in addition to the USB drive. I have looked at the wiki and the forums and have found no way to fix this. How do I make the computer recognize that there exists only one nvme?

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,001

Re: Issue with Intel RST refusing to go away.

You have changed the setting in the bios setup utility from rst/raid to AHCI ?

If not, you can access the firmware by pressing F1 (repeatedly) at boot time until you get to the firmware setup.

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky

IKnowWhyImHere

Member

Registered: 2026-04-02

Posts: 3

Re: Issue with Intel RST refusing to go away.

I have changed the setting in bios from RST/raid to AHCI. I also learned that ubuntu just wouldn't be able to boot if RST was on but that it should operate fine provided the setting was changed to AHCI, so to confirm that RST was properly off I went into the live environment of ubuntu and continued on the installation path. It did give me two places to install two. I then started the install, it worked. I then canceled the install as it would have taken some time and ubuntu is, very clearly, not the distro I want. I have now also opened up the computer physically and confirmed the existence of only one ssd.

IKnowWhyImHere

Member

Registered: 2026-04-02

Posts: 3

Re: Issue with Intel RST refusing to go away.

I have not managed to find a solution, but instead chose to simply work around it. I installed the EFI and boot partitions on the smaller of the fake disks, which is about 26 gb in size. I then made the other one, which is around 470 gb into a home and swap partitions. I then mounted them in the normal manner and so far everything is working, although that 26 gb is proving to be smaller than I thought. Although I didn't manage to recombine the two fake disks into one, this seems to work fine for now.

BrokenRouter

Member

Registered: 2020-06-25

Posts: 1

Re: Issue with Intel RST refusing to go away.

I don't understand why you are calling them "fake disks"... Your machine shipped with an Intel Optane SSD. The Optane SSD contains two storage units - a large "normal" SSD at whatever the advertised capacity of the drive is, and a smaller (often around 32GB) unit made of Optane flash, which is faster (in some but not all applications) that is used as cache.

When combined with Intel RST technology, under Windows, the two units are combined to appear as a single disk. The Optane cache is used to give the system a speed boost.

So neither of them is "fake".

What you've done is fine - you installed the OS onto the Optane unit and the rest of your system on the standard flash. If you start to run into space problems you can always move /var and maybe /opt onto your larger unit. Or reinstall and just ignore the cache drive.