title: Change boot2docker memory assignment
body: <p>I've been playing around with docker on a mac so I need to install boot2docker to make it work.</p>
  
  <p>I have a pretty powerful machine and a very resource hungry app so I want to up the available memory from the default which is <a href="https://github.com/boot2docker/boot2docker/blob/master/doc/FAQ.md">1GB</a> to something like 8GB.</p>
  
  <hr>
  
  <p><strong>This is what I've tried</strong></p>
  
  <p>Booting boot2dock with the --memory param</p>
  
  <pre><code>boot2docker --memory=8116 boot
  </code></pre>
  
  <p>Change the config file</p>
  
  <pre><code>Verbose = true
  VBM = "VBoxManage"
  SSH = "ssh"
  SSHGen = "ssh-keygen"
  SSHKey = "/Users/mjsilva/.ssh/id_boot2docker"
  VM = "boot2docker-vm"
  Dir = "/Users/mjsilva/.boot2docker"
  ISO = "/Users/mjsilva/.boot2docker/boot2docker.iso"
  VMDK = ""
  DiskSize = 20000
  Memory = 8116
  SSHPort = 2022
  DockerPort = 2375
  HostIP = "192.168.59.3"
  DHCPIP = "192.168.59.99"
  NetMask = [255, 255, 255, 0]
  LowerIP = "192.168.59.103"
  UpperIP = "192.168.59.254"
  DHCPEnabled = true
  Serial = false
  SerialFile = "/Users/mjsilva/.boot2docker/boot2docker-vm.sock"
  </code></pre>
  
  <p>and then booting boot2docker</p>
  
  <pre><code>boot2docker boot
  </code></pre>
  
  <p>None of this approaches seem to work. I only end up only having the default memory.</p>
  
  <hr>
  
  <p>The only way I manage to change was going to virtualbox GUI shutdown boot2docker, change it manually and boot it again.</p>
  
  <p>Am I missing something?</p>