[Bug 1827851] Re: Installer --- crashes without explanation

[blogten]

*** This bug is a duplicate of bug 1466150 ***
    https://bugs.launchpad.net/bugs/1466150

** This bug has been marked a duplicate of bug 1466150
   grub-install breaks when ESP is on raid

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https://bugs.launchpad.net/bugs/1827851

Title:
  Installer --- crashes without explanation

Status in grub-installer package in Ubuntu:
  New

Bug description:
  Trying to install Ubuntu on a bcache device, caching an mdadm device.
  Bootloader device set to the main mdadm device, with three partitions:
  swap, efi, and the rest (which is then cached by the bcache device).

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14.12
  ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20
  Uname: Linux 4.18.0-15-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  CasperVersion: 1.394
  Date: Mon May  6 02:20:28 2019
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash nomodeset ---
  LiveMediaBuild: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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