Update Arch Linux ARM on a Raspberry Pi

Arch-First-Update.sh

#!/bin/sh
#
# Arch-First-Update.sh
# For Raspberry Pi
#
# Based on archlinuxarm-29-04-2012
# SHA-1 b84d1eaba2ec64982da40ccd7dba06b186f6954
#
# See http://www.raspberrypi.org/phpBB3/viewtopic.php?f=53&t=8512&p=107921#p107921
#
# Script is spilt into functions to allow quick disabling & enabling of various stages
# Comment out any functions you don't need to run within the main processing area of the script.
#
# The following are optional...
# pacman_keys_setup <- will require confirming certificates manually
# additional_installers

# Disclaimer - use at your own risk & have a backup plan, it works for me
# Tested via SSH login


#################
### FUNCTIONS ###
#################


# System Updates
system_updates(){
  echo "system_updates..."
  # Get pacman update first
  pacman -Sy pacman --noconfirm

  # install a quicker 'locate' tool (next 2 lines optional)
  pacman -S mlocate --noconfirm
  updatedb

  # (ignore 'filesystem' then force 'filesystem' update due to /var/run moving)
  # see https://www.archlinux.org/news/filesystem-upgrade-manual-intervention-required-1/
  pacman -Syu --ignore filesystem --noconfirm
  pacman -S filesystem --force --noconfirm
}


# Setup pacman key
# Requires system activity for key generation
pacman_keys_setup(){
  echo "pacman_keys_setup..."
  # 'haveged' needed to setup pacman key over ssh
  # See https://wiki.archlinux.org/index.php/Pacman-key#Initializing_the_keyring
  pacman -S haveged --noconfirm
  rc.d start haveged
  # Generate noise for the key.
  echo "Pacman keygen in progress"
  find / -name '*' -type f 2>/dev/null
  #pacman-key --init # may need 2 calls to pacman-key
  pacman-key --init
  rc.d stop haveged
  # unistall haveged
  pacman -Rs haveged --noconfirm
  # Install the keyring to make this process work
  # See http://www.raspberrypi.org/phpBB3/viewtopic.php?p=107341#p107341
  pacman -S archlinux-keyring --noconfirm
  pacman-key --populate archlinux
  # Additional Pacman setup
  # Set 'SigLevel = Optional TrustAll' in /etc/pacman.conf (uncomment next line)
  #sed -i'' -e's/#SigLevel = Optional TrustAll/SigLevel = Optional TrustAll/' /etc/pacman.conf
}


# Extra installation.
additional_installers() {
  echo "additional_installers..."
  # Add any extra tools you want installing here and uncomment the call to 'additional_installers'
  # e.g. for udev-automount
  #pacman -S --noconfirm udev-automount
}




####################################
### MAIN PROCESSING BEGINS BELOW ###
####################################


# Got root?
if [ "$(id -u)" != "0" ]; then
  clear
  echo "#########################################################"
  echo "Please execute with 'sudo' or -DANGEROUS!!!- as root"
  echo "sudo $0"
  echo "#########################################################"
  exit 1
fi

echo "Starting at ... "
echo `date`
# call functions...
system_updates
pacman_keys_setup
#additional_installers

echo "#########################################################"
echo "####################### DONE ############################"
echo "#########################################################"
echo "Extra steps ..."
echo "find / -name *.pacnew"
echo "... or ..."
echo "locate *.pacnew"
echo "To find new any config files that need merging."
echo "Config info -> https://wiki.archlinux.org/index.php/Beginners%27_Guide#Configure_the_system"
echo "Add a user -> https://wiki.archlinux.org/index.php/Beginners%27_Guide#Adding_a_User"
echo "Add a root password! -> https://wiki.archlinux.org/index.php/Beginners%27_Guide#Root_password"
echo ""
echo "#########################################################"
echo "#########################################################"
echo "#########################################################"
echo ""
echo "Finished at ..."
echo `date`
echo ""
echo "#########################################################"
echo "NOW REBOOT"
echo "#########################################################"

exit 0