[Bug 1087653] [NEW] grub2-signed doesn't support vfat file system on USB drive.

[Shih-Yuan Lee]

Public bug reported:

grub2-signed=1.9+2.00-7ubuntu11 in quantal.

* Reproduce Steps
1.  Generate a bootable USB drive by the following commands:
$ sudo grub-install --removable --uefi-secure-boot --root-directory /media/username/UsbStick /dev/sdb1
$ cp /boot/grub/grub.cfg /media/username/UsbStick/boot/grub/
2. Use this USB drive to boot on UEFI BIOS.

* Expected Result
We can see the GRUB menu.

* Actually Result
We can not see the GRUB menu comparing to the USB drive made by the following commands:
$ sudo grub-install --removable --no-uefi-secure-boot --root-directory /media/username/UsbStick /dev/sdb1
$ cp /boot/grub/grub.cfg /media/username/UsbStick/boot/grub/

** Affects: oem-priority
     Importance: Undecided
         Status: New

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

** Description changed:

- grub2-signed=1.9+2.00-7ubuntu11
+ grub2-signed=1.9+2.00-7ubuntu11 in quantal.
  
  * Reproduce Steps
  1.  Generate a bootable USB drive by the following commands:
  $ sudo grub-install --removable --uefi-secure-boot --root-directory /media/username/UsbStick /dev/sdb1
  $ cp /boot/grub/grub.cfg /media/username/UsbStick/boot/grub/
  2. Use this USB drive to boot on UEFI BIOS.
  
  * Expected Result
  We can see the GRUB menu.
  
  * Actually Result
  We can not see the GRUB menu comparing to the USB drive made by the following commands:
  $ sudo grub-install --removable --no-uefi-secure-boot --root-directory /media/username/UsbStick /dev/sdb1
  $ cp /boot/grub/grub.cfg /media/username/UsbStick/boot/grub/

** Also affects: oem-priority
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1087653

Title:
  grub2-signed doesn't support vfat file system on USB drive.

Status in OEM Priority Project:
  New
Status in “grub2-signed” package in Ubuntu:
  New

Bug description:
  grub2-signed=1.9+2.00-7ubuntu11 in quantal.

  * Reproduce Steps
  1.  Generate a bootable USB drive by the following commands:
  $ sudo grub-install --removable --uefi-secure-boot --root-directory /media/username/UsbStick /dev/sdb1
  $ cp /boot/grub/grub.cfg /media/username/UsbStick/boot/grub/
  2. Use this USB drive to boot on UEFI BIOS.

  * Expected Result
  We can see the GRUB menu.

  * Actually Result
  We can not see the GRUB menu comparing to the USB drive made by the following commands:
  $ sudo grub-install --removable --no-uefi-secure-boot --root-directory /media/username/UsbStick /dev/sdb1
  $ cp /boot/grub/grub.cfg /media/username/UsbStick/boot/grub/

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