[Bug 1864965] Re: Add Intel RAID/RST detection with NVMe devices

[Woodrow Shen]

** Patch added: "hw-detect_1.117ubuntu8.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/hw-detect/+bug/1864965/+attachment/5336023/+files/hw-detect_1.117ubuntu8.debdiff

** Changed in: hw-detect (Ubuntu)
       Status: New => In Progress

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Title:
  Add Intel RAID/RST detection with NVMe devices

Status in hw-detect package in Ubuntu:
  In Progress

Bug description:
  [Impact]

  A new discover-remapped-nvme.sh supports to detect if Intel RAID/RST
  mode is activated as NVMe devices are remapped to AHCI memory space.
  Based on this, ubiquity installer can take advantage of detection and
  handle such a case with improved user experience.

  [Test Case]

  There are several ways to test this case, but one of them will be
  integration test:

  In ubiquity, hw-detect will be sourced, and then import disk-detect.sh to call remapped_nvme_probe(). Then use the following command to get debconf value:
  $ echo "get disk-detect/activate_remapped_nvme" | sudo debconf-communicate
  0 True

  [Regression Potential]

  Some case will be different, especially the system doesn't have AHCI
  when RAID mode was set in BIOS, so that PCI attribute "remapped_nvme"
  is gone.

  [Other Info]

  To upstream to debian sid is another WIP item.

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