Add complete guide and all config variants
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renato97
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# Provides standalone GOP driver for EFI era Mac Pro and iMac
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## Releases
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EnableGop version (OpenCore version)
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### 1.4 (0.9.3)
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- Incorporates recent updates to OpenCore console control code, but no difference in behaviour compared
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to version 1.3 is expected on any supported systems.
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### 1.3 (0.9.2)
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- Included fix to GopBurstMode for non-standard frame buffer information on AMD Radeon HD 7970 and similar
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- Applied GopBurstMode even on natively supported cards, as it can provide a noticable speed up
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### 1.2 (0.9.1)
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- Added GopBurstMode support
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*Note 1*: This should provide faster GOP rendering on all EnableGopDirect systems; and rendering at least at
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the same speed as before, and on some systems noticeably faster than before, on almost all EnableGop systems.
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*Note 2*: The compressed driver for version 1.2 is 1KB larger than for version 1.1, so for AMD GPU firmware which is
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tight on space version 1.1 may be used instead to avoid the need for VGA stripping to make additional space.
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### 1.1 (0.9.0)
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- Fixed early verbose boot lines appearing over picker
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- Added EnableGop version number to UI section
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### 1.0 (0.8.9)
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- Initial public release
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## Status
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**Current status: Beta release.**
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This driver has been tested and is working on several iMac models
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with several different GPUs, and on several MacPro4,1/5,1 machines with several different GPUs. However, in the worst
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case (and still possible) scenario, an incompatible or incorrectly installed driver
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in firmware may brick your hardware.
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*In all cases take a backup of the main firmware or GPU firmware which you are modifying, and confirm that
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you can successfully restore from this, before starting.*
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## Recovery from bricked hardware
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- If attempting main firmware insertion on a MacPro4,1/5,1, for recovery from a bricked device you will either
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need a Matt card (which may breach intellectual property laws in some jurisdictions) or the ability to
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desolder and reprogram your own SPI flash chip.
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- If testing via main firmware insertion on an iMac, you will need the ability to disassemble your iMac and
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reprogram its SPI flash chip using a SOIC clip attached to a CH341A controller running on another computer.
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- If testing via GPU firmware insertion (iMac or Mac Pro), you will need the ability to disassemble your system,
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likely remove the heat sink from the graphics card, and then reprogram its SPI flash chip using a SOIC
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clip attached to a CH341A controller running on another computer.
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- If testing via GPU firmware insertion, in some cases it may also be possible
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to use physical electrical connection to your GPU in order to enable booting with no graphics even though the GPU
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is present, then connect to your machine with `ssh` (which must have been enabled beforehand) and reprogram the GPU
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firmware. Advice on this headless boot approach is not provided here, but may be found for instance on the iMac GPU
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related forum threads listed below.
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*If you are not familiar with the above procedures, you are strongly recommended to wait for further testing by
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users who are. No further help can be provided here, and you proceed entirely at your own risk.*
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## Summary
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Targetting EFI-era (~2009-2012) MacPro4,1/5,1 and iMac firmware, this driver gathers and injects the parts of
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OpenCore needed for pre-boot graphics support with non-natively supported GPUs.
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The requirements for using this driver are:
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- EFI-era (~2009-2012) MacPro4,1/5,1 or iMac with most recent main firmware.
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- A GPU which does not produce native pre-boot graphics (such as native picker when pressing ALT key during boot)
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before OpenCore starts (otherwise, you do not need it).
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- A GPU which produces graphics when using OpenCore (this must include successfully showing the native Apple boot
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picker when started via the latest version of OpenCore tool `BootKicker.efi`) (otherwise, the driver will not work).
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- *Note*: If your OpenCore installation includes a required GOP driver for your graphics card, then you would
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also need to burn that driver to the firmware of your graphics card in order to obtain pre-OpenCore graphics;
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instructions for this are outside the scope of this tutorial, although the procedures required for modifying
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GPU firmware are similar to what is covered here.
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Note that such a driver is added by the OCLP **Enable AMD GOP** option, which is enabled automatically on some
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systems by recent versions of OpenCore Legacy Patcher, as a way to enable the OpenCore menu in cards such as ex-mining GPUs.
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When installed, the driver should enable:
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- Native boot picker via ALT key
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- Firmware password UI
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- Target disk mode UI
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- macOS boot progress screen
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- etc.
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Compiled versions of the driver files and these instructions may be found in the `Utilities/EnableGop`
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directory of the OpenCore release package.
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For GPUs needing `DirectGopRendering` in OpenCore configuration, use `EnableGopDirect.efi`, otherwise use `EnableGop.efi`
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as it renders faster on most other systems.
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The driver may be installed to GPU or main motherboard firmware. It is expected that most Mac Pro users will use main firmware insertion
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and most iMac users will chose GPU firmware insertion, however both techniques work on both systems (but it is harder to modify the
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iMac main firmware, since there is no simple way to enable writing to it).
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Further discussion and community support for this driver is available at:
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- https://forums.macrumors.com/threads/pre-opencore-gop-support-for-efi-era-imacs-and-mac-pros.2378942/
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## Usage
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## Install to main firmware
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For reading and writing to main firmware on the Mac Pro, @Macschrauber's [Rom Dump](https://github.com/Macschrauber/Macschrauber-s-Rom-Dump) works
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well. Alternatively the kexts and executables which this uses can be sourced individually (or extracted from the Rom Dump app) and
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run from the command line.
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The main firmware on the iMac cannot be updated without an initial hardware flash (SOIC clip plus CH341A controller), therefore
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the recommended approach on iMac systems is [GPU firmware injection](#install-to-gpu-firmware). However, the below instructions for firmware
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injection do work, if you are willing to do a hardware flash of the resulting firmware file, or if you have already
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[unprotected your iMac firmware](https://forums.macrumors.com/threads/imac-2011-see-more-uefi-firmware-mod.2257435/page-3?post=31087001#post-31087001) -
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which reduces security, and is only recommended for those actively developing firmware modifications.
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The `.ffs` file provided in this directory can be manually added to the extracted firmware file using [`UEFITool`](https://github.com/LongSoft/UEFITool),
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or automatically added using @dosdude1's [`DXEInject`](https://dosdude1.com/apps/). Once more, if you are not familiar with these procedures,
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you are recommended to proceed with extreme caution.
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### Using DXEInject
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To install the driver via `DXEInject`, the command is:
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- `DXEInject {original}.rom {modified}.rom EnableGop.ffs`
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The file `{modifed}.rom` is ready for burning, although the result can be checked using UEFITool, if required.
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> *Note*: If only reading a file with UEFITool, the latest version is recommended, as it provides the most information.
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For writing, the older version 0.25.1 must be used, as described below.
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### Using UEFITool
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The `.ffs` file may be inserted anywhere within the same firmware volume which contains `DuetBds`
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(file GUID `A6F691AC-31C8-4444-854C-E2C1A6950F92`). However, for simplicity, these instructions
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will insert it in the same place that `DXEInject` does:
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- Use UEFITool 0.25.1 (it must be that old version, not the newer NE or new engine versions, which
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cannot yet edit)
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- Perform a header-only GUID search for `BAE7599F-3C6B-43B7-BDF0-9CE07AA91AA6`
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- Double-click on the search result
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- Right-click on the DXE driver with that GUID which should then appear
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- Choose "Insert after..." and select `EnableGop.ffs`
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- Save the modified firmware
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The end result, after saving and re-loading, should look like this:
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<img src="UEFITool_Inserted_Screenshot.png">
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## Install to GPU firmware
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Instructions and a script for inserting the driver into Nvidia or AMD GPU firmware (aka VBIOS) are provided.
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Please note all the cautions already given above about the difficulty of recovering, unless you are familiar with
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the procedures necessary, if this process fails.
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To use the provided `vBiosInsert.sh` script:
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- Locate an appropriate version of the `nvflash` tool (Nvidia) or `amdvbflash` tool (AMD) (both are available for
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Linux and Windows), which can be used to read from and write to the GPU firmware.
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- Use that tool to read a copy of the GPU firmware.
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- Run `./vBiosInsert.sh [-a|-n] {original}.rom EnableGop.efi {modified}.rom`, with `-a` for AMD and `-n` for Nvidia.
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- If you have any problems with `vBiosInsert.sh` from a specific release
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of EnableGop, please try the version included with the latest release of OpenCore
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before reporting any issues.
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The script receives updates to support additional graphics cards independently
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of any bumps to the release version of EnableGop. If you need to, you can use
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the latest version of `vBiosInsert.sh` to inject older versions of EnableGop.
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- The new file `{modified}.rom` may be burnt to the GPU firmware.
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In the case of AMD, considerably less space is normally available, due to a strict limit of 128k for legacy and EFI
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parts of the larger ROM image. If there is not enough space (i.e. script reports
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data would be truncated) then it is necessary to [strip some legacy VGA parts of the
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GPU firmware](https://github.com/Ausdauersportler/IMAC-EFI-BOOT-SCREEN/wiki/Deleting-the-VGA). This is beyond the scope
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of these instructions.
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If required to manually detect the GOP offset (this should normally be autodetected):
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> Using a hex editor, search in the GPU firmware dump for the byte sequence `F1 0E 00 00` with the byte sequence `55 AA` coming
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close before it; the start address of the `55 AA` is the GOP offset value needed.
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For further information on GPU firmware modification, see:
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- https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/
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- https://forums.macrumors.com/threads/imac-2011-maxwell-and-pascal-gpu-upgrade.2300989/
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- https://github.com/Ausdauersportler/IMAC-EFI-BOOT-SCREEN/wiki
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- https://winraid.level1techs.com/t/amd-and-nvidia-gop-update-no-requests-diy/30917
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#!/bin/bash
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#
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# Copyright © 2023 Mike Beaton. All rights reserved.
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Insert EFI into AMD or Nvidia VBIOS.
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# Tested back to Mac OS X 10.11 El Capitan.
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#
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usage() {
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echo "Usage: ./${SELFNAME} [args] {rom-file} {efi-file} {out-file}"
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echo "Args:"
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echo " -a : AMD"
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echo " -n : Nvidia"
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echo " -o {GOP offset} : GOP offset (auto-detected if Homebrew grep is installed)"
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echo " Can specify 0x{hex} or {decimal}"
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echo " -t {temp dir} : Specify temporary directory, and keep temp files"
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echo " -m {max size} : Specify VBIOS max size (Nvidia only)"
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echo " (For AMD first 128KB is modified, any remainder is kept)"
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echo "Examples:"
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echo " ./${SELFNAME} -n -o 0xFC00 nv.rom EnableGop.efi nv_mod.rom"
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echo " ./${SELFNAME} -n nv.rom EnableGop.efi nv_mod.rom"
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echo " ./${SELFNAME} -a amd.rom EnableGop.efi amd_mod.rom"
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echo ""
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}
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SELFNAME="$(/usr/bin/basename "${0}")"
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commands=(
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"EfiRom"
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"UEFIRomExtract"
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"hexdump"
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"grep"
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)
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FOUND=1
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for command in "${commands[@]}"; do
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if ! command -v "$command" 1>/dev/null ; then
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echo "${command} not available!"
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FOUND=0
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fi
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done
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if [ "$FOUND" -eq 0 ] ; then
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exit 1
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fi
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AMD=0
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AMD_SAFE_SIZE="0x20000"
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NVIDIA_SAFE_SIZE="0x40000"
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GOP_OFFSET="-"
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NVIDIA=0
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POS=0
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TRUNCATE=0
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while true; do
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if [ "$1" = "-a" ] ; then
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AMD=1
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NVIDIA=0
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shift
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elif [ "$1" = "-n" ] ; then
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AMD=0
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NVIDIA=1
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shift
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elif [ "$1" = "-o" ] ; then
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shift
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if [ "$1" != "" ] && ! [ "${1:0:1}" = "-" ] ; then
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GOP_OFFSET=$1
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shift
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else
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echo "No GOP offset specified" && exit 1
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fi
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elif [ "$1" = "-s" ] ; then # semi-secret option to modify AMD safe size
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shift
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if [ "$1" != "" ] && ! [ "${1:0:1}" = "-" ] ; then
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AMD_SAFE_SIZE=$1
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shift
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else
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echo "No AMD safe size specified" && exit 1
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fi
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elif [ "$1" = "-m" ] ; then
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shift
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if [ "$1" != "" ] && ! [ "${1:0:1}" = "-" ] ; then
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TRUNCATE=1
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TRUNCATE_SIZE=$1
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NVIDIA_SAFE_SIZE=$TRUNCATE_SIZE
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shift
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else
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echo "No max size specified" && exit 1
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fi
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elif [ "$1" = "-t" ] ; then
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shift
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if [ "$1" != "" ] && ! [ "${1:0:1}" = "-" ] ; then
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TEMP_DIR=$1
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shift
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else
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echo "No temp dir specified" && exit 1
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fi
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elif [ "${1:0:1}" = "-" ] ; then
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echo "Unknown option: ${1}" && exit 1
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elif [ "$1" != "" ] ; then
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case "$POS" in
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0 )
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ROM_FILE="$1"
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;;
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1 )
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EFI_FILE="$1"
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;;
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2 )
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OUT_FILE="$1"
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;;
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* )
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echo "Too many filenames specified" && exit 1
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;;
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esac
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POS=$(($POS+1))
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shift
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else
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break
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fi
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done
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if [ "$ROM_FILE" = "" ] ||
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[ "$EFI_FILE" = "" ] ||
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[ "$OUT_FILE" = "" ] ; then
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usage
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exit 0
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fi
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if [ "$AMD" -eq 0 ] && [ "$NVIDIA" -eq 0 ] ; then
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echo "Must specify -a or -n" && exit 1
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fi
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if [ "$AMD" -eq 1 ] && [ "$TRUNCATE" -eq 1 ] ; then
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echo "-m is not valid with -a" && exit 1
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fi
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if [ "$TEMP_DIR" != "" ] ; then
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mkdir -p "$TEMP_DIR" || exit 1
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tmpdir="$TEMP_DIR"
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else
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# https://unix.stackexchange.com/a/84980/340732
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tmpdir=$(mktemp -d 2>/dev/null || mktemp -d -t 'vbios') || exit 1
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fi
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ORIGINAL_SIZE=$(stat -f%z "$ROM_FILE") || exit 1
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if [ "$AMD" -eq 1 ] ; then
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# For AMD we can only modify the first 128KB, anything above 128KB
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# should not be moved, and is not mapped to memory visible by the CPU
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# for loading EFI drivers.
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TRUNCATE=1
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TRUNCATE_SIZE="$AMD_SAFE_SIZE"
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# Also works, with empty keep_part.rom, in the atypical case where we
|
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# are provided with only the used part of the ROM below 128KB.
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dd bs=1 if="$ROM_FILE" of="$tmpdir/modify_part.rom" count="$AMD_SAFE_SIZE" 2>/dev/null || exit 1
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dd bs=1 if="$ROM_FILE" of="$tmpdir/keep_part.rom" skip="$AMD_SAFE_SIZE" 2>/dev/null || exit 1
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else
|
||||
if [ "$TRUNCATE" -eq 0 ] ; then
|
||||
# If original size is a plausible ROM size (exact power of two, 64KB or
|
||||
# larger; 64KB chosen partly for neat regexp) treat it as the full available
|
||||
# size of the VBIOS chip unless overridden with -m.
|
||||
printf '%x' "$ORIGINAL_SIZE" | grep -Eq "^(1|2|4|8)0000+$" && TRUNCATE=1
|
||||
if [ "$TRUNCATE" -eq 1 ] ; then
|
||||
echo "Detected standard ROM size."
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||||
TRUNCATE_SIZE="$ORIGINAL_SIZE"
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||||
else
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||||
if [ "$ORIGINAL_SIZE" -gt "$((NVIDIA_SAFE_SIZE))" ] ; then
|
||||
echo " - File size of ${ORIGINAL_SIZE} bytes must be no more than $((NVIDIA_SAFE_SIZE)) bytes; use -m or check file" && exit 1
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||||
fi
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||||
TRUNCATE=1
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||||
TRUNCATE_SIZE="$NVIDIA_SAFE_SIZE"
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||||
fi
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||||
fi
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||||
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||||
cp "$ROM_FILE" "$tmpdir/modify_part.rom" || exit 1
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||||
fi
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||||
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||||
if [ "$GOP_OFFSET" = "-" ] ; then
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echo "Auto-detecting GOP offset..."
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||||
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||||
# nicer techniques which do not assume nice alignment of what is being searched for do not work on older Mac OS X
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||||
OUTPUT=$(hexdump -C "$tmpdir/modify_part.rom" | grep '55 aa .. .. f1 0e 00 00' | head -1)
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# Make macOS bash to split as expected:
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||||
# shellcheck disable=SC2206
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||||
GOP_ARRAY=($OUTPUT)
|
||||
GOP_OFFSET=${GOP_ARRAY[0]}
|
||||
if [ "$GOP_OFFSET" != "" ] ; then
|
||||
GOP_OFFSET="0x${GOP_OFFSET}"
|
||||
GOP_OFFSET=$(($GOP_OFFSET))
|
||||
else
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||||
GOP_OFFSET=-1
|
||||
fi
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||||
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||||
if [ "$GOP_OFFSET" -eq -1 ] ; then
|
||||
echo " - No GOP found in ROM!" && exit 1
|
||||
fi
|
||||
fi
|
||||
|
||||
dd bs=1 if="$tmpdir/modify_part.rom" of="$tmpdir/original_first_part.rom" count=$(($GOP_OFFSET)) 2>/dev/null || exit 1
|
||||
dd bs=1 if="$tmpdir/modify_part.rom" of="$tmpdir/original_last_part.rom" skip=$(($GOP_OFFSET)) 2>/dev/null || exit 1
|
||||
|
||||
echo "Compressing EFI using EfiRom..."
|
||||
if [ "$AMD" -eq 1 ] ; then
|
||||
EfiRom -o "$tmpdir/insert.rom" -ec "$EFI_FILE" -f 0xAAAA -i 0xBBBB -l 0x30000 -p || exit 1
|
||||
else
|
||||
EfiRom -o "$tmpdir/insert.rom" -ec "$EFI_FILE" -f 0xAAAA -i 0xBBBB -l 0x30000 || exit 1
|
||||
fi
|
||||
|
||||
if [ "$NVIDIA" -eq 1 ] ; then
|
||||
dd bs=1 if="$tmpdir/insert.rom" of="$tmpdir/insert_first_part" count=$((0x38)) 2>/dev/null || exit 1
|
||||
dd bs=1 if="$tmpdir/insert.rom" of="$tmpdir/insert_last_part" skip=$((0x38)) 2>/dev/null || exit 1
|
||||
|
||||
# TODO: truncation logic should be fixed for when there is not enough spare padding in output of EfiRom;
|
||||
# we currently assume without checking that there is enough space to fit in the NPDE header (if not,
|
||||
# script will report failure to verify with UEFIRomExtract below).
|
||||
INSERT_SIZE=$(stat -f%z "$tmpdir/insert.rom") || exit 1
|
||||
|
||||
# Calculate NPDE size from original GOP and add to new image
|
||||
EfiImageOffset=$(dd if="$tmpdir/original_last_part.rom" ibs=1 skip=$((0x16)) count=2 2>/dev/null | od -t u4 -An | xargs)
|
||||
if [ "$EfiImageOffset" -eq $((0x50)) ] ; then
|
||||
NpdeSize=$((0x18))
|
||||
elif [ "$EfiImageOffset" -eq $((0x4C)) ] ; then
|
||||
NpdeSize=$((0x14))
|
||||
elif [ "$EfiImageOffset" -eq $((0x38)) ] ; then
|
||||
NpdeSize=0
|
||||
else
|
||||
# Note: We need at least 0x14 NPDE size for the patch-ups we do below for size and end-marker to make sense
|
||||
printf "Unsupported EFI Image Offset 0x%x, cannot calculate NPDE Size!\n" "$EfiImageOffset"
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ "$NVIDIA" -eq 1 ] && [ "$NpdeSize" -ne 0 ] ; then
|
||||
echo "Adding Nvidia header..."
|
||||
|
||||
dd bs=1 if="$tmpdir/original_last_part.rom" of="$tmpdir/insert_first_part" skip=$((0x38)) seek=$((0x38)) count="$NpdeSize" 2>/dev/null || exit 1
|
||||
cat "$tmpdir/insert_first_part" "$tmpdir/insert_last_part" > "$tmpdir/insert_oversize.rom" || exit 1
|
||||
# Note: `truncate` command is not present by default on macOS
|
||||
dd bs=1 if="$tmpdir/insert_oversize.rom" of="$tmpdir/insert_fixed.rom" count="$INSERT_SIZE" 2>/dev/null || exit 1
|
||||
|
||||
# Patch size in NPDE
|
||||
dd bs=1 if="$tmpdir/insert.rom" of="$tmpdir/insert_fixed.rom" skip=$((0x2)) seek=$((0x48)) count=1 conv=notrunc 2>/dev/null || exit 1
|
||||
else
|
||||
cp "$tmpdir/insert.rom" "$tmpdir/insert_fixed.rom" || exit 1
|
||||
fi
|
||||
|
||||
# patch with vendor and device id from original GOP
|
||||
dd bs=1 if="$tmpdir/original_last_part.rom" of="$tmpdir/insert_fixed.rom" skip=$((0x20)) seek=$((0x20)) count=4 conv=notrunc 2>/dev/null || exit 1
|
||||
|
||||
if [ "$NVIDIA" -eq 1 ] && [ "$NpdeSize" -ne 0 ] ; then
|
||||
# Patch EFI image offset in PCIR
|
||||
dd bs=1 if="$tmpdir/original_last_part.rom" of="$tmpdir/insert_fixed.rom" skip=$((0x16)) seek=$((0x16)) count=1 conv=notrunc 2>/dev/null || exit 1
|
||||
|
||||
# Patch end marker in NPDE in fixed ROM (leave PCIR correct and EFI extractable from fixed ROM)
|
||||
echo -n -e '\x00' | dd bs=1 of="$tmpdir/insert_fixed.rom" seek=$((0x4A)) conv=notrunc 2>/dev/null || exit 1
|
||||
fi
|
||||
|
||||
echo "Combining..."
|
||||
cat "$tmpdir/original_first_part.rom" "$tmpdir/insert_fixed.rom" "$tmpdir/original_last_part.rom" > "$tmpdir/combined.rom" || exit 1
|
||||
|
||||
# If new ROM is larger than truncate size, determine overflow by seeing
|
||||
# whether truncated ROM still has padding.
|
||||
# For Nvidia we would need to parse and navigate NVGI and NPDE headers
|
||||
# to calculate true occupied VBIOS space. To calcuate AMD occupation below
|
||||
# 128KB limit, we could navigate normal PCI expansion ROM headers.
|
||||
COMBINED_SIZE=$(stat -f%z "$tmpdir/combined.rom") || exit 1
|
||||
if [ "$COMBINED_SIZE" -le "$(($TRUNCATE_SIZE))" ] ; then
|
||||
TRUNCATE=0
|
||||
fi
|
||||
if [ "$TRUNCATE" -eq 1 ] ; then
|
||||
echo "Truncating to original size..."
|
||||
|
||||
dd bs=1 if="$tmpdir/combined.rom" of="$tmpdir/truncated.rom" count="$TRUNCATE_SIZE" 2>/dev/null || exit 1
|
||||
|
||||
COUNT=$(hexdump -v -e '1/8 " %016X\n"' "$tmpdir/truncated.rom" | tail -n 8 | grep "FFFFFFFFFFFFFFFF" | wc -l)
|
||||
if [ "$COUNT" -ne 8 ] ; then
|
||||
# Some Nvidia ROMs, at least, incorrectly have 00000000 padding after active contents
|
||||
# (it is incorrect, since writing only active contents using nvflash resets the rest to ffffffff).
|
||||
# May also be relevant if we ever have any truly 00000000 default ROM images.
|
||||
COUNT=$(hexdump -v -e '1/8 " %016X\n"' "$tmpdir/truncated.rom" | tail -n 8 | grep "0000000000000000" | wc -l)
|
||||
fi
|
||||
|
||||
if [ "$COUNT" -ne 8 ] ; then
|
||||
echo " - Not enough space within $((TRUNCATE_SIZE / 1024))k limit - aborting!" && exit 1
|
||||
fi
|
||||
|
||||
if [ "$AMD" -eq 1 ] ; then
|
||||
cat "$tmpdir/truncated.rom" "$tmpdir/keep_part.rom" > "$OUT_FILE" || exit 1
|
||||
else
|
||||
cp "$tmpdir/truncated.rom" "$OUT_FILE" || exit 1
|
||||
fi
|
||||
else
|
||||
cp "$tmpdir/combined.rom" "$OUT_FILE" || exit 1
|
||||
fi
|
||||
|
||||
# patch end marker in PCIR in out file
|
||||
echo -n -e '\x00' | dd bs=1 of="$OUT_FILE" seek=$(($GOP_OFFSET + 0x31)) conv=notrunc 2>/dev/null || exit 1
|
||||
|
||||
printf "Verifying (starting at 0x%X)...\n" "$GOP_OFFSET"
|
||||
dd bs=1 if="$OUT_FILE" of="$tmpdir/out_efi_part.rom" skip=$(($GOP_OFFSET)) 2>/dev/null || exit 1
|
||||
# UEFIRomExtract error messages are on stdout, so we cannot suppress unwanted normal output here
|
||||
UEFIRomExtract "$tmpdir/out_efi_part.rom" "$tmpdir/extracted.efi" || exit 1
|
||||
ERROR=0
|
||||
diff "$tmpdir/extracted.efi" "$EFI_FILE" 1>/dev/null || ERROR=1
|
||||
|
||||
if [ "$ERROR" -ne 0 ] ; then
|
||||
echo " - Failure comparing extracted EFI to original!"
|
||||
fi
|
||||
|
||||
OLD_EFI_COUNT=$(EfiRom -d "$tmpdir/original_last_part.rom" | grep "0x0EF1" | wc -l) || exit 1
|
||||
OLD_EFI_COUNT=$(($OLD_EFI_COUNT)) || exit 1
|
||||
|
||||
NEW_EFI_COUNT=$(EfiRom -d "$tmpdir/out_efi_part.rom" | grep "0x0EF1" | wc -l) || exit 1
|
||||
NEW_EFI_COUNT=$(($NEW_EFI_COUNT)) || exit 1
|
||||
|
||||
if [ "$NEW_EFI_COUNT" -ne $(($OLD_EFI_COUNT + 1)) ] ; then
|
||||
echo " - ${OLD_EFI_COUNT} EFI parts in original ROM, and detected ${NEW_EFI_COUNT} EFI parts in modified ROM, expected $(($OLD_EFI_COUNT + 1))!"
|
||||
ERROR=1
|
||||
fi
|
||||
|
||||
if [ "$ERROR" -eq 0 ] ; then
|
||||
echo "SUCCESS."
|
||||
else
|
||||
echo "*** WARNING - FAIL ***"
|
||||
fi
|
||||
|
||||
if [ "$TEMP_DIR" = "" ] ; then
|
||||
rm -rf "$tmpdir" || exit 1
|
||||
fi
|
||||
|
||||
echo "Done."
|
||||
Reference in New Issue
Block a user