[Bug 1874066] Re: Cannot install on non-RST drive if RST is enabled and there is a second RST-enabled drive

[Bruce Ide]

Can I jump on this bug? My laptop's a MSI Titan. From the factory, they
RAID together two 500GB SSD drives with a windows 10 install. There's
also a 1TB 7200 RPM SATA disk which I'd installed Ubuntu 18.04 in the
past with no problems. I know that 20.04 will run on this machine and if
the installer would simply provide a way to continue the install despite
the fact that RST is detected on the machine, I could just install it.
Just make it a warning, possibly even a very strong warning, but provide
a way to continue anyway.

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https://bugs.launchpad.net/bugs/1874066

Title:
  Cannot install on non-RST drive if RST is enabled and there is a
  second RST-enabled drive

Status in OEM Priority Project:
  New
Status in ubiquity package in Ubuntu:
  New
Status in ubiquity source package in Focal:
  New

Bug description:
  Test Case:
  1. On a machine with 2 disk 1 spinning disk and 1 nvme disk, enable RST
  2. Start ubiquity and proceed zith the installation to the partitioning step

  Expected result
  Despite RST being enabled, user should be able to install on the non-RST disk

  Actual result
  Installation is blocked on the RST page and user cannot proceed without disabling RST

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.14
  ProcVersionSignature: Ubuntu 5.4.0-25.29-generic 5.4.30
  Uname: Linux 5.4.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CasperVersion: 1.445
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Apr 21 12:35:53 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash nomodeset ---
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200420)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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