title: HAProxy doesn't start, can not bind UNIX socket [/run/haproxy/admin.sock]
body: <p>I'm trying to start haproxy (version 1.5.8 2014/10/31) with an "empty" config file and I get:</p>
  
  <pre><code>user@server:~$ sudo service haproxy start
  [....] Starting haproxy: haproxy[ALERT] 126/120540 (7363) : Starting frontend GLOBAL: cannot bind UNIX socket [/run/haproxy/admin.sock]
  </code></pre>
  
  <p>altough it's enabled:</p>
  
  <pre><code>user@server:~$ cat /etc/default/haproxy 
  # Set ENABLED to 1 if you want the init script to start haproxy.
  ENABLED=1
  </code></pre>
  
  <p>Configuration file:</p>
  
  <pre><code>global
      log /dev/log    local0
      log /dev/log    local1 notice
      chroot /var/lib/haproxy
      stats socket /run/haproxy/admin.sock mode 660 level admin
      stats timeout 30s
      user haproxy
      group haproxy
      daemon
  
      # Default SSL material locations
      ca-base /etc/ssl/certs
      crt-base /etc/ssl/private
  
      # Default ciphers to use on SSL-enabled listening sockets.
      # For more information, see ciphers(1SSL).
      ssl-default-bind-ciphers kEECDH+aRSA+AES:kRSA+AES:+AES256:RC4-SHA:!kEDH:!LOW:!EXP:!MD5:!aNULL:!eNULL
      ssl-default-bind-options no-sslv3
  
  defaults
      log     global
      mode    http
      option  httplog
      option  dontlognull
      timeout connect 5000
      timeout client  50000
      timeout server  50000
      errorfile 400 /etc/haproxy/errors/400.http
      errorfile 403 /etc/haproxy/errors/403.http
      errorfile 408 /etc/haproxy/errors/408.http
      errorfile 500 /etc/haproxy/errors/500.http
      errorfile 502 /etc/haproxy/errors/502.http
      errorfile 503 /etc/haproxy/errors/503.http
      errorfile 504 /etc/haproxy/errors/504.http
  </code></pre>
  
  <p>Does anyone have an idea why it can't start?</p>