[Bug 1458788] Re: Kubuntu 15.04 installation fails with grub-install error on raid 0 system

[Launchpad Bug Tracker]

[Expired for grub-installer (Ubuntu) because there has been no activity
for 60 days.]

** Changed in: grub-installer (Ubuntu)
       Status: Incomplete => Expired

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

Title:
  Kubuntu 15.04 installation fails with grub-install error on raid 0
  system

Status in grub-installer package in Ubuntu:
  Expired

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 alternatives 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
  - adding --metadata=0.90 to mdadm

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