Mini Shell

#!/usr/bin/bash
# This file is part of dracut.
# SPDX-License-Identifier: GPL-2.0-or-later

# Prerequisite check(s) for module.
check() {

    # If the binary(s) requirements are not fulfilled the module can't be installed.
    require_binaries bash || return 1

    # Return 255 to only include the module, if another module requires it.
    return 255

}

# Module dependency requirements.
depends() {

    # Return 0 to include the dependent module(s) in the initramfs.
    return 0

}

# Install the required file(s) and directories for the module in the initramfs.
install() {

    inst /bin/bash

    # Prefer bash as default shell if no other shell is preferred.
    [[ -L $initdir/bin/sh ]] || ln -sf bash "${initdir}/bin/sh"

}