[bug #51570] UEFI Simple filesystem is not supported

[Janne Heß]

URL:
  <http://savannah.gnu.org/bugs/?51570>

                 Summary: UEFI Simple filesystem is not supported
                 Project: GNU GRUB
            Submitted by: das_j
            Submitted on: Tue 25 Jul 2017 12:12:45 PM UTC
                Category: Booting
                Severity: Major
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: 2.02
         Reproducibility: Every Time
         Planned Release: None

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Details:

When chainloading a .efi binary, it cannot use SIMPLE_FILESYSTEM_PROTOCOL
because it is unsupported (UEFI error code 3).
When booting the .efi binary without GRUB, it works.

An example is the HashTool.efi from the efitools package, which tries to read
key files.
The failing source code (including line) can be found here: [1]

1:
https://git.kernel.org/pub/scm/linux/kernel/git/jejb/efitools.git/tree/lib/simple_file.c#n28




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