[Bug 1526608] Re: package grub-efi-amd64 2.02~beta2-9ubuntu1.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 - on macbook pro

[Phillip Susi]

You mean you intentionally mounted it read only?

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Title:
  package grub-efi-amd64 2.02~beta2-9ubuntu1.6 failed to
  install/upgrade: subprocess installed post-installation script
  returned error exit status 1 - on macbook pro

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  Installing for x86_64-efi platform.
  grub-install: error: cannot open `/boot/efi/EFI/ubuntu/System/Library/CoreServices/boot.efi': Read-only file system.
  dpkg: error processing package grub-efi-amd64 (--configure):
   subprocess installed post-installation script returned error exit status 1
  dpkg: dependency problems prevent configuration of grub-efi-amd64-signed:
   grub-efi-amd64-signed depends on grub-efi-amd64 (= 2.02~beta2-9ubuntu1.6); however:
    Package grub-efi-amd64 is not configured yet.

  dpkg: error processing package grub-efi-amd64-signed (--configure):
   dependency problems - leaving unconfigured

  ProblemType: Package
  DistroRelease: Ubuntu 14.04
  Package: grub-efi-amd64 2.02~beta2-9ubuntu1.6
  ProcVersionSignature: Ubuntu 3.16.0-55.74~14.04.1-generic 3.16.7-ckt19
  Uname: Linux 3.16.0-55-generic x86_64
  NonfreeKernelModules: wl nvidia
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  Date: Wed Dec 16 10:15:32 2015
  DuplicateSignature: package:grub-efi-amd64:2.02~beta2-9ubuntu1.6:subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2015-07-13 (155 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-55-generic.efi.signed root=UUID=42d7e066-a7ce-45e4-98bb-748772ce2a18 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   dpkg 1.17.5ubuntu5.5
   apt  1.0.1ubuntu2.10
  SourcePackage: grub2
  Title: package grub-efi-amd64 2.02~beta2-9ubuntu1.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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