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My XPS desktop has 1 TB M.2 PCle NVMe SSD + 2TB 7200RPM 3.5" SATA HDD hard disks. The Window system pre-install on the SSD, then I installed the Ubuntu on HDD, I don't want windows anymore, so I click 'erase disk and install ubuntu'. Then I check my disk through the "Disks" utility, it only shows HDD, I can't find SSD hard disk. anyone could help? Many thanks!

I tried sudo disk -l | grep sd, and these info showup:

Disk /dev/sda: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors

/dev/sda1 2048 1050623 1048576 512M EFI System

/dev/sda2 1050624 3907028991 3905978368 1.8T Linux filesystem

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  • Hi, I don't have a solution for you, but I would start by checking if the missing drive can be seen in BIOS? If yes, open terminal and run sudo fdisk -l | grep sd - can you see your drive in output of that command?
    – kurja
    Apr 28, 2020 at 20:38
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    If an NVMe it will not show as sdX, but as /dev/nvme0n1. Many Dell need UEFI update & SSD update. And drives need to be AHCI in UEFI settings.
    – oldfred
    Apr 28, 2020 at 22:05
  • hi @kurja , thanks for your advice, the output shows: Disk /dev/sda: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors /dev/sda1 2048 1050623 1048576 512M EFI System /dev/sda2 1050624 3907028991 3905978368 1.8T Linux filesystem
    – Vickyyyyyy
    Apr 29, 2020 at 14:49
  • ok, so fdisk only finds your HDD (sda) like @oldfred said. Did you check your UEFI settings that the NVMe is set as AHCI like he suggested? I have no experience with hardware like yours and can't really help further than this unfortunately.
    – kurja
    Apr 29, 2020 at 16:29
  • I changed the bios setting of SADA from REID to AHCI as @oldfred suggested, then I reinstalled the ubuntu on SSD, now I can see both, and HHD as a volume. Thank you so much for the help from you two!
    – Vickyyyyyy
    Apr 29, 2020 at 20:05

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I changed the bios setting of SADA from REID to AHCI as oldfred suggested, then I reinstalled the ubuntu on SSD, now I can see both, and HHD as a volume.

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