[Bug 1287573] [NEW] GRUB EFI fails to install on MacBook Air 5-2

[M4he]

Public bug reported:

I tried to install trusty on a MacBook Air 5-2 (mid 2012) using EFI. I've tried using both pure EFI boot (holding Alt while turning on the device) as well as rEFIt. No matter which device/partition I select for the bootloader to be installed to, I'm always getting the message "'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB bootloader the system will not load." at the end of the installation and the installer crashes.
I also tried mounting /dev/sda1 to /boot/efi beforehand and pointing GRUB installation to /dev/sda1 but no luck.
Thus I'm unable to install trusty on this device.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.17.8
ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4
Uname: Linux 3.13.0-12-generic x86_64
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
CasperVersion: 1.337
Date: Tue Mar  4 08:33:25 2014
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/xubuntu.seed boot=casper quiet splash --
LiveMediaBuild: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140225)
ProcEnviron:
 LANGUAGE=de_DE.UTF-8
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug trusty ubiquity-2.17.8 xubuntu

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https://bugs.launchpad.net/bugs/1287573

Title:
  GRUB EFI fails to install on MacBook Air 5-2

Status in “grub-installer” package in Ubuntu:
  New

Bug description:
  I tried to install trusty on a MacBook Air 5-2 (mid 2012) using EFI. I've tried using both pure EFI boot (holding Alt while turning on the device) as well as rEFIt. No matter which device/partition I select for the bootloader to be installed to, I'm always getting the message "'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB bootloader the system will not load." at the end of the installation and the installer crashes.
  I also tried mounting /dev/sda1 to /boot/efi beforehand and pointing GRUB installation to /dev/sda1 but no luck.
  Thus I'm unable to install trusty on this device.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.17.8
  ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4
  Uname: Linux 3.13.0-12-generic x86_64
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  CasperVersion: 1.337
  Date: Tue Mar  4 08:33:25 2014
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/xubuntu.seed boot=casper quiet splash --
  LiveMediaBuild: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140225)
  ProcEnviron:
   LANGUAGE=de_DE.UTF-8
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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