initrafms-toolkit is a toolkit that allows to extract and compress initramfs cpio, useful for Linux kernel exploitation.
Here is the list of the available compression systems:
- gzip
- bzip2
- lz4
- lzma
- lzop
- xz
- zstd
You can also use the tool to compress/extract cpio without any compression system.
The usage for this tool is very basic, here is the help page:
env@Ruulian:~$ ./extract-initramfs -h
Usage: ./extract-initramfs initrd/initramfs [-o output_directory] [-f]
Options:
-o : Specify the output directory (default: 'initrd-root')
-f : Force creation of output directory (overwrite if already exists)
-h : Print this help message
Note: This tool allows by default to extract cpios concatenated in one archive
env@Ruulian:~$ ./compress-initramfs -h
Usage: ./compress-initramfs compression_type input_directory [-o output_filename]
Compression type:
You can choose among the following types: [ lzma lz4 xz cpio zstd gzip bzip2 lzop ]
Input directory:
Choose the directory fs to archive
Options:
-o : Specify output file name
-h : Print this help message
To use this toolkit, the following packages are needed:
cpio gzip bzip2 xz-utils zstd lz4 lzop
Pull requests are welcome. Feel free to open an issue if you encounter any problem or want to add any feature.