On 12/23/22 23:16, Jeffrey Walton wrote:
On Fri, Dec 23, 2022 at 10:29 PM David Christensen wrote:
debian-user:
I have a SanDisk Ultra Fit USB 3.0 16 GB flash drive with Debian
installed on it EUFI, GPT, and Secure Boot. I use it for maintenance/
trouble-shooting on newer computers.
When I boot the flash drive in a Dell Precision 3630 Tower that has
Windows 11 Pro installed on the internal NVMe drive, the internal PCIe
NVMe drive is not visible to Linux:
The work-around is to change CMOS Setup -> System Configuration -> SATA
Operation from "RAID On: to "AHCI". The problem is that Windows needs
the former and it is a hassle to change the CMOS settings back and forth
every time I want to run Debian. If I change it to AHCI and forget to
change it back, Windows breaks. If and when I make this mistake on a
client computer, it will be very embarrassing. I want a portable Debian
on a USB flash drive or USB SSD to work on newer computers without
changing the CMOS settings that the factory set for Windows.
Comments or suggestions?
The NVMe is provisioned to the Intel Optane accelerator. Optane takes
a small but fast NVMe, and combines it with a slow HDD, and makes the
system (kind of) perform like there's one large SSD.
The NVMe drive should not appear as a seperate drive when it is
provisioned for Optane.
I'm running Kubuntu on a Dell XPS 8930 that came preinstalled with
Windoze. It also had the Optane acceleration. I had to disable Optane
to get access to the NVMe. Once Optane was broken I was able to load
the OS on the NVMe, and make the HDD a large storage/scratch drive.
Jeff
The M.2 2280 NVMe SSD and a slim DVD +/-RW drive are the only storage
devices in the computer. AFAICT there are no Optane devices.
The SSD says:
PCIe Gen3 x 4 SSD
PC300 NVMe SK hunix 256 GB
M/N: HFS256GD9MND-5510A BA
D P/N 0XHFF7
I am unable to find a web page on skhynix.com for this item; perhaps
because it is OEM'd to Dell (?). STFW finds many used items for around
US$25.
But the CMOS Setup issue is not isolated to this computer nor to this
NVMe SSD. I have seen the same issue on Dell Latitude 5400 laptops, for
example.
I am looking for a way for Debian to see NVMe drives when CMOS Setup ->
System Configuration -> SATA Operation is set to "RAID On" (which is the
factory default and what Windows needs).
David