[Bug 1090829] Re: grub-efi fails to install with Input/output error

[Phillip Susi]

I don't understand what you mean by "I can boot straight to ubuntu with
no bootloader, but running windows breaks it.", could you elaborate?

Also have you run chkdsk on the esp from windows?

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https://bugs.launchpad.net/bugs/1090829

Title:
  grub-efi fails to install with Input/output error

Status in “dosfstools” package in Ubuntu:
  Confirmed
Status in “grub2” package in Ubuntu:
  Incomplete

Bug description:
  HP G6 laptop with Windows 8 installed, and looking to have a dual-boot
  with Ubuntu 12.10

  With SecureBoot enabled: http://paste.ubuntu.com/1421098
  And with SecureBoot disabled: http://paste.ubuntu.com/1421155

  grub-efi fails writing on the original ESP:

  # grub-install --efi-directory=/boot/efi --target=x86_64-efi
  mkdir: cannot create directory `/boot/efi/EFI/ubuntu': Input/output error

  Remark: this is similar but not duplicate of Bug #1091477

  **************** WORKAROUND:
  1) via Gparted create another EFI partition (FAT32, 200MB, located in the first 100GB of the disk), move the 'boot' flag on it
  2) make Ubuntu use this new ESP (eg via Boot-Repair).

  Example: http://paste.ubuntu.com/1442264

  *************** Computers that come with a locked ESP:
  - HP G6 laptop: see original bug description
  - Samsung Series 9 NP900X4C-A07US: http://paste.ubuntu.com/1442902

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