#!/bin/sh
# 00-early-mount.sh — Mount essential virtual filesystems

mount -t proc proc /proc 2>/dev/null || true
mount -t sysfs sysfs /sys 2>/dev/null || true
mount -t devtmpfs devtmpfs /dev 2>/dev/null || true
mount -t tmpfs tmpfs /tmp
mount -t tmpfs tmpfs /run

mkdir -p /dev/pts /dev/shm
mount -t devpts devpts /dev/pts
mount -t tmpfs tmpfs /dev/shm

# Mount cgroup2 unified hierarchy
mkdir -p /sys/fs/cgroup
mount -t cgroup2 cgroup2 /sys/fs/cgroup 2>/dev/null || {
    log_warn "cgroup v2 mount failed; attempting v1 fallback"
    mount -t tmpfs cgroup /sys/fs/cgroup
    for subsys in cpu cpuacct memory devices freezer pids; do
        mkdir -p "/sys/fs/cgroup/$subsys"
        mount -t cgroup -o "$subsys" "cgroup_${subsys}" "/sys/fs/cgroup/$subsys" 2>/dev/null || true
    done
}