[Bug 1458788] [NEW] Installation fails with grub-install error on raid 0 system

[Chris Vanden Berghe]

Public bug reported:

I have tried installing Kubuntu 15.04 on my laptop containing 4 SSDs
which I want to combine using raid 0.

I performed the following steps:

- boot from USB
- choose try Kubuntu
- install mdadm
- create raid 0 array
- start installation
- whole disk, guided partitioning

The installation fails with "Executing 'grub-install /dev/sda' failed".

I tried the following without luck:

- dist-upgrade before installation
- using Kubuntu 14.04.02 instead of 15.04
- manual partitioning
- using LVM w or w/o encryption
- pre-creating swap/ext4 partitions vs. partitioning during installation

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: grub installation raid0 ubiquity

** Attachment added: "debug"
   https://bugs.launchpad.net/bugs/1458788/+attachment/4404679/+files/debug

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https://bugs.launchpad.net/bugs/1458788

Title:
  Installation fails with grub-install error on raid 0 system

Status in grub-installer package in Ubuntu:
  New

Bug description:
  I have tried installing Kubuntu 15.04 on my laptop containing 4 SSDs
  which I want to combine using raid 0.

  I performed the following steps:

  - boot from USB
  - choose try Kubuntu
  - install mdadm
  - create raid 0 array
  - start installation
  - whole disk, guided partitioning

  The installation fails with "Executing 'grub-install /dev/sda'
  failed".

  I tried the following without luck:

  - dist-upgrade before installation
  - using Kubuntu 14.04.02 instead of 15.04
  - manual partitioning
  - using LVM w or w/o encryption
  - pre-creating swap/ext4 partitions vs. partitioning during installation

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