init.sh

#!/usr/bin/env bash

function configure_init()
{
    set -x
    export PATH=/sbin:/bin
}
function configure_fs()
{
    mount -o remount,rw /

    mount -t proc proc /proc
    mount -t sysfs sys /sys

    # /dev/ptmx
    mkdir -p /dev/pts
    mount -t devpts devpts /dev/pts
}
function configure_net()
{
    ip l s dev lo up
}
function configure_env()
{
    # TODO: parse cmdline
    local env=(
        TERM=xterm
    )
    export "${env[@]}"
}
function configure_tty()
{
    stty rows 50 cols 182
}
function main()
{
    configure_init
    configure_fs
    configure_net
    configure_env
    configure_tty

    tmux || bash
}
main "$@"