[Bug 1518427] Re: Trying to install Ubuntu 14.04 dual bood wth Windows 10 and grub cannot be installed on an efi partition

[Phillip Susi]

Your installation medium contains a mix of trysty and wily.  You need to
format a USB stick before reusing it to install a different
distro/release.


** Changed in: grub-installer (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1518427

Title:
  Trying to install Ubuntu 14.04 dual bood wth Windows 10 and grub
  cannot be installed on an efi partition

Status in grub-installer package in Ubuntu:
  Invalid

Bug description:
  Del XPS 15 (9530) model.
  With Windows 10

  Ubuntu 15.10 was successfully installed but I want to downgrade to
  Ubuntu 14.04 due to gcc-5 ABI changes, I need gcc 4.8.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.18.8.9 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
  Uname: Linux 3.19.0-25-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  CasperVersion: 1.340.2
  Date: Fri Nov 20 20:05:02 2015
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed cdrom-detect/try-usb=true noprompt floppy.allowed_drive_mask=0 ignore_uuid boot=casper only-ubiquity quiet splash --
  LiveMediaBuild: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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