Can you boot into live usb on Manjaro os and share the output of this command
`sudo dmesg | grep nvme`
First the simple answer to your question. Booting from a USB flash drive with Manjaro and issuing the command:
sudo dmesg | grep nvme gave no results.
But I wasn't happy with that, so I went a bit further. Sorry for the length.
TLDR: The NVMe shows up randomly when booting from Ubuntu on the M.2 SSD. Lsblk identifies the SATA controller in RAID mode, not AHCI. When booting from Manjaro on a USB flash drive, the NVMe never showed up in 4 tries.
Configuration:
USB1 = Keyboard
USB2 = Wireless Mouse
USB3 = 4GB Flash Drive with manjaro-xfce-20.2.1-210103-linux59
USB3 = 1.2GB Flash Drive with FreeDos
[which won't boot on a UEFI class 3 BIOS]
NVMe M.2 = Samsung 950 PRO 512GB NVMe SSD with Windows 10 Pro Build 20279 release 201209
M.2 = Western Digital Blue 1TB SSD with Ubunt 20.10 updated and current as of 5 Jan 2021.
Booted from Ubuntu on SSD
paul@X35G:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 512M 0 part /boot/efi
├─sda2 8:2 0 2G 0 part [SWAP]
├─sda3 8:3 0 2G 0 part
└─sda4 8:4 0 927G 0 part
sdb 8:16 1 3.9G 0 disk
└─sdb1 8:17 1 3.9G 0 part /media/paul/MANJARO_XFC
sdc 8:32 1 121.1M 0 disk
└─sdc1 8:33 1 121.1M 0 part /media/paul/READSPEED 1
nvme0n1 259:0 0 476.9G 0 disk
[Note - this was intermittent 2/4 times it did not show up]
├─nvme0n1p1 259:1 0 529M 0 part
├─nvme0n1p2 259:2 0 100M 0 part
├─nvme0n1p3 259:3 0 16M 0 part
└─nvme0n1p4 259:4 0 476.3G 0 part
paul@X35G:~$ sudo dmesg | grep SATA
[ 1.006134] ata2: SATA max UDMA/133 abar m2048@0x82602000 port 0x82602180 irq 127
[ 1.006136] ata3: SATA max UDMA/133 abar m2048@0x82602000 port 0x82602200 irq 127
[ 1.321015] ata2: SATA link down (SStatus 4 SControl 300)
[ 1.321040] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
paul@X35G:~$ sudo dmesg | grep -i sata | grep 'link up'
[ 1.321040] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
paul@X35G:~$ sudo hdparm -I /dev/sda | egrep "Model|speed|Transport"
Model Number: WDC WDS100T2B0B-00YS70
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
* Gen1 signaling speed (1.5Gb/s)
* Gen2 signaling speed (3.0Gb/s)
* Gen3 signaling speed (6.0Gb/s)
paul@X35G:~$ lspci
00:00.0 Host bridge: Intel Corporation Device 8a02 (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Iris Plus Graphics G1 (Ice Lake) (rev 07)
00:07.0 PCI bridge: Intel Corporation Ice Lake Thunderbolt 3 PCI Express Root Port #0 (rev 03)
00:0d.0 USB controller: Intel Corporation Ice Lake Thunderbolt 3 USB Controller (rev 03)
00:0d.2 System peripheral: Intel Corporation Ice Lake Thunderbolt 3 NHI #0 (rev 03)
00:14.0 USB controller: Intel Corporation Ice Lake-LP USB 3.1 xHCI Host Controller (rev 30)
00:14.2 RAM memory: Intel Corporation Device 34ef (rev 30)
00:15.0 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #0 (rev 30)
00:16.0 Communication controller: Intel Corporation Management Engine Interface (rev 30)
00:17.0 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller
[RAID mode] (rev 30)
[I think this is where the problem is, RAID mode]
00:1c.0 PCI bridge: Intel Corporation Device 34ba (rev 30)
00:1c.4 PCI bridge: Intel Corporation Ice Lake-LP PCI Express Root Port #5 (rev 30)
00:1d.0 PCI bridge: Intel Corporation Ice Lake-LP PCI Express Root Port #9 (rev 30)
00:1d.4 PCI bridge: Intel Corporation Device 34b4 (rev 30)
00:1e.0 Communication controller: Intel Corporation Ice Lake-LP Serial IO UART Controller #0 (rev 30)
00:1e.3 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO SPI Controller #1 (rev 30)
00:1f.0 ISA bridge: Intel Corporation Ice Lake-LP LPC Controller (rev 30)
00:1f.3 Audio device: Intel Corporation Smart Sound Technology Audio Controller (rev 30)
00:1f.4 SMBus: Intel Corporation Ice Lake-LP SMBus Controller (rev 30)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP SPI Controller (rev 30)
2c:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
2d:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
2e:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01)
2f:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
paul@X35G:~$
Booted from Manjaro on USB
[manjaro@manjaro ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 512M 0 part
├─sda2 8:2 0 2G 0 part
├─sda3 8:3 0 2G 0 part
└─sda4 8:4 0 927G 0 part
sdb 8:16 1 121.1M 0 disk
└─sdb1 8:17 1 121.1M 0 part
sdc 8:32 1 3.9G 0 disk /run/miso/bootmnt
├─sdc1 8:33 1 2.7G 0 part
└─sdc2 8:34 1 4M 0 part
[manjaro@manjaro ~]$ sudo dmesg | grep SATA
[ 6.407039] ata2: SATA max UDMA/133 abar m524288@0x82500000 port 0x82500180 irq 16
[ 6.407041] ata3: SATA max UDMA/133 abar m524288@0x82500000 port 0x82500200 irq 16
[ 6.718675] ata2: SATA link down (SStatus 4 SControl 300)
[ 6.718710] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[manjaro@manjaro ~]$ sudo dmesg | grep -i sata | grep 'link up'
[ 6.718710] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[manjaro@manjaro ~]$ lspci
All the same except missing:
00:1d.0 PCI bridge: Intel Corporation Ice Lake-LP PCI Express Root Port #9 (rev 30)
2e:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM951/PM951 (rev 01)