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MagiskBoot - Boot Image Modification Tool

The most complete tool for unpacking and repacking Android boot images.

Note: This is a minimal (dirty) copy of topjohnwu's MagiskBoot.

Documentation

Build

  • Using MSYS2 clang64 environment with mingw-w64-clang-x86_64-toolchain packages group, LLVM version 14 and up, run mingw32-make command. (magiskboot.exe will appear in the out folder).
  • if built a non-static variant, all DLLs in out/obj/lib/shared must be present in your PATH for successful execution.

What's changed:

  • cpio action extract with no paramaters to ramdisk folder in current directory.
    • it creates cpio file to allow mode/uid/gid changes in Windows (with sync or pack)
  • new cpio action sync that synchronize incpio entries with ramdisk directory (as new cpio). Any changes will be captured and dumped to incpio.
  • new cpio action pack as follows: cpio pack [-c <config>] <infolder> <outcpio>
    • if <config> is undefined cpio is looked-up instead.

For Windows

  • There's some UBs/SFs that needs to be addressed (test and report).
  • Tested and working operations are limited.

magiskboot's People

Contributors

canyie avatar svoboda18 avatar topjohnwu avatar vvb2060 avatar yujincheng08 avatar

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magiskboot's Issues

should add some notes for MSYS2 users

nice work

@affggh told me this project doesn't build on MSYS2 with the MINGW64 environment (see also the document here about these "environments" on MSYS2)
so i found out it's mainly because of the C and C++ standard library this project uses
when building in the MINGW64 environment, i had basically got these errors:

  1. some headers are missing (it turned out to be a C++ standard library issue, after installing the libc++ package (yes in the MINGW64 environment it uses the libstdc++ as the default C++ standard library and clang++ uses that too, so the libc++ isn't installed by default) it worked)
  2. some functions are not declared (i had to include some extra headers in some source files to fix this. i think it is because of the default C++ standard library again (probably the compiler is not configured to use any C++ standard library other than libstd++ in this environment))
  3. some symbols are undefined when linking (it happens when you try to do static linking for any C++ program that uses libc++ and the new/delete operator, so maybe the compiler isn't configured to work in this case (dynamic linking works just fine))

when i try to build the project in the UCRT64 environment (this environment uses UCRT as the default C standard library, but still uses libstdc++ as the default C++ standard library), i still get the third error

finally, i am able to successfully build and run magiskboot without any problem when i use the CLANG64 environment (since it uses libc++ as the default C++ standard library)

How to use cpio patch ?

Hi, nice port. Thank

Have a question, how set the KEEPFORCEENCRYPT or KEEPVERITY ? (On Windows. By default is false ?)

The latest binary doesn't works

This is the error i get when i try to run the latest binary although the previous one works as expected

####Latest Binary######

~\Downloads\magiskboot
❯ .\magiskboot.exe
Program 'magiskboot.exe' failed to run: The file or directory is corrupted and unreadableAt line:1 char:1

  • .\magiskboot.exe

At line:1 char:1

  • .\magiskboot.exe
  •   + CategoryInfo          : ResourceUnavailable: (:) [], ApplicationFailedException
      + FullyQualifiedErrorId : NativeCommandFailed
    
    
    

####Previous Binary######

~\Downloads\magiskboot(1)
❯ .\magiskboot.exe
MagiskBoot - Boot Image Modification Tool

Usage: C:\Users\Hari\Downloads\magiskboot(1)\magiskboot.exe [args...]

Supported actions:
unpack [-n] [-h] [outdir]
Unpack to its individual components, each component to
a file with its corresponding file name in the current directory.
Supported components: kernel, kernel_dtb, ramdisk.cpio, second,
dtb, extra, and recovery_dtbo.
By default, each component will be automatically decompressed
on-the-fly before writing to the output file.
If '-n' is provided, all decompression operations will be skipped;
each component will remain untouched, dumped in its original format.
If '-h' is provided, the boot image header information will be
dumped to the file 'header', which can be used to modify header
configurations during repacking.
Return values:
0:valid 1:error 2:chromeos

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