[Bug 1394811] Re: grub-installer (invoqued by ubiquity) fails to install grub on /dev/sda

[Pancu]

Also I have this problem on asus UX430QU Laptop

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Title:
  grub-installer (invoqued by ubiquity) fails to install grub on
  /dev/sda

Status in grub-installer package in Ubuntu:
  Invalid

Bug description:
  My laptop has 1 rotating disk and 1 SSD.
  On this laptop, using Ubuntu Live from a large USB stick, I would like to install Ubuntu 14.10 with a customized partitionning scheme.

  I know that the BIOS is able to boot from a DVD and from a USB stick.
  But for boot using the internal rotating disk '/dev/sda', I do NOT know if the BIOS is able to use GRUB inside MBR, use GRUB in EFI partition, use only the original W**** OS (whose partition does NOT exist anymore), or is broken.

  So, I am trying various configuration sets using following parameters  :
  -  For the partition table of the internal rotating disk, format it as MBR or GPT.
  -  For the device on which to install GRUB, tell ubiquity to use the internal rotating disk, or to use a small USB stick.
  -  For the EFI partition, tell ubiquity to use it, or NOT to use it.

  With most of the configuration sets, the installation apparently
  succeeds, but on reboot, the BIOS does NOT find GRUB.

  The current bug occured with following configuration parameters :
  -  For the partition table of the internal rotating disk, format it as MBR.
  -  For the device on which to install GRUB, tell ubiquity to use the internal rotating disk.
  -  For the EFI partition, tell ubiquity NOT to use it.

  I have several questions :
  -  Can grub-install display precisely what it does ?
  -  Could ubiquity, at the end of the disk customization page, display what grub-install will try to do ?
  -  By the way, is there any utility able to show what my laptop BIOS requires for boot using the internal rotating disk ?

  Thank you in davance for your answers.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubiquity 2.20.0
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.345
  Date: Fri Nov 21 00:00:29 2014
  InstallCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi root=UUID=A9EA-E4F5 maybe-ubiquity debian-installer/language=en keyboard-configuration/layoutcode=fr keyboard-configuration/variantcode=mac iso-scan/filename=/ubuntu-gnome-14.10-desktop-amd64.iso boot=casper file=/cdrom/preseed/ubuntustudio.seed noprompt quiet splash --
  LiveMediaBuild: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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