mkinitfs is a tool for generating an initramfs. It was originally designed for postmarketOS, but a long term design goal is to be as distro-agnostic as possible. It's capable of generating a split initramfs, in the style used by postmarketOS, and supports running boot-deploy to install/finalize boot files on a device.

Building

Building this project requires a Go compiler/toolchain and make:

$ make

To install locally:

$ make install

Installation prefix can be set in the generally accepted way with setting PREFIX:

$ make PREFIX=/some/location
# make PREFIX=/some/location install

Other paths can be modified from the command line as well, see the top section of the Makefile for more information.

Tests (functional and linting) can be executed by using the test make target:

$ make test

Usage

The tool can be run with no options:

# mkinitfs

Configuration is done through a series of flat text files that list directories and files, and by placing scripts in specific directories. See man 1 mkinitfs for more information.