#!/bin/sh
# Bring up the kernel virtual filesystems and runtime dirs before other
# services start. Safe to re-run: each mount is guarded by mountpoint checks.
set -eu
export PATH=/usr/bin:/usr/sbin:/bin:/sbin

mountpoint -q /proc           || mount -t proc     proc     /proc
mountpoint -q /sys            || mount -t sysfs    sysfs    /sys
mountpoint -q /dev            || mount -t devtmpfs devtmpfs /dev
mkdir -p /dev/pts /dev/shm
mountpoint -q /dev/pts        || mount -t devpts   devpts   /dev/pts
mountpoint -q /dev/shm        || mount -t tmpfs    tmpfs    /dev/shm
# NOTE: /run is intentionally NOT remounted here. dinit (PID 1) binds its
# control socket under /run before this script runs; on the all-RAM initramfs
# boot /run is already writable, and a fresh tmpfs mount would hide that socket.
# (A disk-rooted system should instead mount /run before starting dinit.)
mkdir -p /run/user /run/udev