That sounds like what they call "fakeraid" using  the rst controller,
really there is no need to anymore.  For probably 15 years now i've used
two disks in a linux mdraid volume for boot/rest in raid 1 for redundancy,
usually a crypt volume with luks atop the rest physical volume, and lvm
atop that, with ext4/xfs atop that.  Still do this with nvme disks just
fine for a few generations of boxes.

I did setup my old desktop as a proxmox box with zfs doing my raid1
recently booting entirely off that (super dope, +++ for that), ymmv per
distribution, but that's an option as well for handling all the software
raid function as well.  Ubuntu server with the deb installer always handled
setting up raid/crypt/lvm/fs just fine, haven't in a while personally, but
probably still does adequately.  I diy normally with Arch, but it's what
drives this laptop I'm typing on currently with a pair of 980pro nvme
samsungs doing above.

-mb


On Tue, Feb 7, 2023 at 4:04 PM AZ Pete via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> Hi All,
>
> Ok, I'm finally very close to being able to go to a full Linux environment
> and leave the Microsoft ecosystem. I'm semi-retired and still do some
> Microsoft Data Platform work (which was my career). I recently got a Dell
> Latitude and put Kubtunu 22.04 on it and managed to get all my
> applications, dev tools (many MS tools too!), and hardware working. I've
> been down this road before in years past and Linux on the desktop was
> always a "no-go" for me. So, I was *astonished* how easy it was to install
> Kubuntu and everything just worked. That's how it must feel to be a Mac
> person! :)
>
> However, one of the hurdles with the Dell was that, by default, Dell
> configures the BIOS such that the boot drive (NVME in this case) is set to
> be in RAID mode instead of AHCI mode, even though there is only one drive
> in the system. This caused Ubuntu to simply not boot. After doing some
> research I came to find the Ubuntu doesn't support Intel Rapid Storage
> Technology (RST), which RAID requires. It was a simple fix to reconfigure
> the BIOS into AHCI mode, since I was going to wipe the Windows partition
> anyway.
>
> But, my main production dev box is Win 10 and I have two NVME drives in a
> RAID 0 (mirror) configuration (using hardware RAID in the BIOS). If I want
> to install Ubuntu I need to be able to implement this same level of RAID.
> If Ubuntu doesn't support the Intel RST hardware, how can I install Ubuntu
> and have a RAID 0 arrangement? I'm not looking for a particular answer to
> the problem just some suggestions on what to research. LVM? ZFS? Software
> RAID?
>
> Any thoughts would be appreciated.
> Peter
>
>
>
>
>
>
>
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