[Bug 1091477] [NEW] grub-efi cannot install on locked ESP (read-only error)

YannUbuntu yannubuntu at gmail.com
Mon Dec 17 23:48:00 UTC 2012


Public bug reported:

Some Windows8 computers come with a locked ESP that prevents writing
outside the /EFI/Boot and /EFI/Microsoft folders, thus preventing the
creation of a /EFI/ubuntu folder.

This leads to a "Read-only" error when trying to install grub-efi.

Example: http://ubuntuforums.org/showthread.php?p=12409846#post12409846

Remark: this is similar but not duplicate of Bug #1090829

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

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1091477

Title:
  grub-efi cannot install on locked ESP (read-only error)

Status in “grub2” package in Ubuntu:
  New

Bug description:
  Some Windows8 computers come with a locked ESP that prevents writing
  outside the /EFI/Boot and /EFI/Microsoft folders, thus preventing the
  creation of a /EFI/ubuntu folder.

  This leads to a "Read-only" error when trying to install grub-efi.

  Example:
  http://ubuntuforums.org/showthread.php?p=12409846#post12409846

  Remark: this is similar but not duplicate of Bug #1090829

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

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