shutdown


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#!/usr/bin/ash

findmnt -Rruno TARGET /oldroot | awk '
BEGIN { i = 0 }
! /^\/(proc|dev|sys)/ {
    i++
    mounts[i] = $0
}
END {
    for (j = i; j > 0; j--) {
        print mounts[j]
    }
}
' | while read -r mount; do
    umount -l "$mount"
done

case $1 in
    poweroff|shutdown|halt)
        "$1" -f
        ;;
    *)
        type kexec >/dev/null && kexec -e
        reboot -f
        ;;
esac

# vim: ft=sh ts=4 sw=4