[Bug 1309735] [NEW] The --disk-module=MODULE option of grub-install don't work

[Asuna]

Public bug reported:

My OS is ubuntu14.04.
And the command "grub-install -V" shows that the grub version is  Grub 2.02~beta2-9.
Since I have two disk on my laptop, and one of them is not bootable, I have to use nativedisk option. 
But the "--disk-module=MODULE"  option of grub-install can not work normaly.
Command like:
grub-install --disk-module=native /dev/sda

returns me the following message:
"
 --disk-module: (PROGRAM ERROR) Option should have been recognized!?
Try 'grub-install --help' or 'grub-install --usage' for more information.
"

Grub(-install)2.00 in ubuntu13.10 don't have this bug.

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


** Tags: grub-install

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https://bugs.launchpad.net/bugs/1309735

Title:
  The --disk-module=MODULE option of grub-install don't work

Status in “grub2” package in Ubuntu:
  New

Bug description:
  My OS is ubuntu14.04.
  And the command "grub-install -V" shows that the grub version is  Grub 2.02~beta2-9.
  Since I have two disk on my laptop, and one of them is not bootable, I have to use nativedisk option. 
  But the "--disk-module=MODULE"  option of grub-install can not work normaly.
  Command like:
  grub-install --disk-module=native /dev/sda

  returns me the following message:
  "
   --disk-module: (PROGRAM ERROR) Option should have been recognized!?
  Try 'grub-install --help' or 'grub-install --usage' for more information.
  "

  Grub(-install)2.00 in ubuntu13.10 don't have this bug.

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