Re: Fwd: Dell XPS 8940 SATA and NVMe disk controller not recognized

[Eugene Grosbein]

04.04.2021 5:09, Karl Dunn wrote:

>> See if the BIOS offers a choice of configuring the controller as SATA 
>> instead of RAID. That worked for me on an Inspiron 1180. (It also made W10 
>> unbootable - apparently each OS occupies its own universe.)
> 
> That worked, precisely as it did for you: gpart list shows partitions and 
> drives much to my expectations, and Win10 no longer boots.  I can boot 
> windows by setting the BIOS config back to RAID.  That's not much of a pain.  
> Now to try installing 12.2-RELEASE on the SSD!
> 
> Thank you very much indeed!

When such host-based RAID/AHCI system came in times of Windows XP, there was a 
way to make it boot Windows
with both kinds of BIOS settings. Boot to Windows in a way it normally boots - 
RAID in your case -
and forcibly add a driver corresponding to PCI ids of the controller in ACHI 
mode,
so Windows kernel already has it at boot time.

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Fwd: Dell XPS 8940 SATA and NVMe disk controller not recognized

[Karl Dunn]

 Forwarded Message 
Subject: Re: Dell XPS 8940 SATA and NVMe disk controller not recognized
Date: Sat, 3 Apr 2021 17:05:59 -0500
From: Karl Dunn 
To: Barney Wolff 

On 4/3/2021 2:37 PM, Barney Wolff wrote:

On Sat, Apr 03, 2021 at 02:25:30PM -0500, Karl Dunn wrote:

I have new Dell XPS 8940 that came with Windows 10 Home installed.  I have
created two partitions for FreeBSD, one on its NMVe 256GB SSD, and one on
its WD 1TB HD.

For now, I have 12.2-RELEASE-p4 GENERIC on a USB memstick, so I can do
some limited testing.

FreeBSD 12.2 does not recognize the SATA/RAID controller, which I assume
is resposible (in Win10) for accising both drives.

The relevant pcoconf line for the controlleris:

   none7@pci0:0:23:0: class=0x010400 card=0x09c51028 chip=0x06d68086 rev=0x00 
hdr=0x00
  vendor = 'Intel Corporation'
  class  = mass storage
  subclass   = RAID


See if the BIOS offers a choice of configuring the controller as SATA instead 
of RAID. That worked for me on an Inspiron 1180. (It also made W10 unbootable - 
apparently each OS occupies its own universe.)


That worked, precisely as it did for you: gpart list shows partitions 
and drives much to my expectations, and Win10 no longer boots.  I can 
boot windows by setting the BIOS config back to RAID.  That's not much 
of a pain.  Now to try installing 12.2-RELEASE on the SSD!


Thank you very much indeed!

Karl L. Dunn
kld...@hiwaay.net

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