====== Raspbian jessie installation ======

  apt-get update 
  apt-get upgrade
  rpi-upate
  
Modifier /etc/default/tmpfs pour mettre tmp en ram

===== F2FS =====

  wipefs -a /dev/sdi2
  mkfs.f2fs -t 1 -l root /dev/sdi2
  ionice -c 3 rsync -avHAXx /mnt/ALIX/base/ROOT/ /media/roger/root/
  
Editer fstab:

  /dev/mmcblk0p2  /               f2fs    defaults,noatime,discard  0       1

Editer /boot/cmdline.txt

  dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=f2fs elevator=deadline fsck.repair=yes rootwait
===== SWAP =====

Etat de la mémoire:

  free -htl

Mise en place du swap ou état:

  dphys-swapfile setup

Déactivation:
  
  dphys-swapfile swapoff

Supression

  dphys-swapfile uninstall
  systemctl disable dphys-swapfile
===== APACHE =====

/etc/apache2/mods-enabled/mpm_prefork.conf

  <IfModule mpm_prefork_module>
        StartServers                     1
        MinSpareServers           0
        MaxSpareServers          1
        MaxRequestWorkers         5
        MaxConnectionsPerChild   0
  </IfModule>