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

[Iain Lane]

What Ubiquity needs to know is not if there are *any* remapped NVME
drives. It needs to know if there are *only* those. Like, if I connect a
USB-C drive and wanted to install onto that (to dual boot), I should be
able to still install.

Unless I'm really wrong on this...

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Title:
  Add Intel RAID/RST detection with NVMe devices

Status in hw-detect package in Ubuntu:
  New

Bug description:
  [Impact]

  The disk-detect.sh supports to detect if Intel RAID/RST mode is
  activated as NVMe devices are remapped to PCI bus. 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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