My machine has 2 identical NVMe storage devices:
$ sudo dmesg | grep -i nvme
[ 1.920305] nvme nvme0: pci function 0000:04:00.0
[ 1.957490] nvme nvme0: allocated 64 MiB host memory buffer.
[ 1.990803] nvme nvme0: 15/0/0 default/read/poll queues
[ 2.024382] nvme nvme1: pci function 0000:b4:00.0
[ 2.057384] nvme nvme1: allocated 64 MiB host memory buffer.
[ 2.089470] nvme nvme1: 15/0/0 default/read/poll queues
When I first launch the Ubuntu live installer, both the NVMe storage devices is identified as a multipath device:
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
...
sda 8:0 0 931.5G 0 disk
sdb 8:16 0 931.5G 0 disk
sdc 8:32 1 14.4G 0 disk
└─sdc1 8:33 1 14.4G 0 part
nvme0n1 259:0 0 931.5G 0 disk
└─mpatha 253:0 0 931.5G 0 mpath
nvme1n1 259:1 0 931.5G 0 disk
└─mpatha 253:0 0 931.5G 0 mpath
$ sudo multipath -ll
mpatha (eui.00000000000000000000010000000000) dm-0 NVME,HP SSD EX900 1TB
size=932G features='0' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=1 status=active
| - 0:1:1:1 nvme0n1 259:0 active ready running-+- policy='service-time 0' prio=1 status=enabled
`- 1:1:1:1 nvme1n1 259:1 active ready running
I try to remove the multipath devices:
$ sudo multipath -F
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
...
sda 8:0 0 931.5G 0 disk
sdb 8:16 0 931.5G 0 disk
sdc 8:32 1 14.4G 0 disk
└─sdc1 8:33 1 14.4G 0 part
nvme0n1 259:0 0 931.5G 0 disk
nvme1n1 259:1 0 931.5G 0 disk
Back to installer, after refresh the multipath device is gone but it still can't detect the individual NVMe devices.
I would like to install the ubuntu in one of the NVMe device but I have no way to proceed with my current machine configuration.