#2 /etc/rc.conf

Hoy voy a poner mi /etc/rc.conf ya que siempre se olvidan demonios o módulos detalles.

#
# /etc/rc.conf - Main Configuration for Arch Linux
#
# -----------------------------------------------------------------------
# LOCALIZATION
# -----------------------------------------------------------------------
#
# LOCALE: available languages can be listed with the 'locale -a' command
# DAEMON_LOCALE: If set to 'yes', use $LOCALE as the locale during daemon
# startup and during the boot process. If set to 'no', the C locale is used.
# HARDWARECLOCK: set to "", "UTC" or "localtime", any other value will result
# in the hardware clock being left untouched (useful for virtualization)
# Note: Using "localtime" is discouraged, using "" makes hwclock fall back
# to the value in /var/lib/hwclock/adjfile
# TIMEZONE: timezones are found in /usr/share/zoneinfo
# Note: if unset, the value in /etc/localtime is used unchanged
# KEYMAP: keymaps are found in /usr/share/kbd/keymaps
# CONSOLEFONT: found in /usr/share/kbd/consolefonts (only needed for non-US)
# CONSOLEMAP: found in /usr/share/kbd/consoletrans
# USECOLOR: use ANSI color sequences in startup messages
#
LOCALE="es_ES.UTF-8"
DAEMON_LOCALE="no"
HARDWARECLOCK=""
TIMEZONE="Europe/Warsaw"
KEYMAP="es"
CONSOLEFONT="iso08.16"
CONSOLEMAP=
USECOLOR="yes"
# -----------------------------------------------------------------------
# HARDWARE
# -----------------------------------------------------------------------
#
# MODULES: Modules to load at boot-up. Blacklisting is no longer supported.
# Replace every !module by an entry as on the following line in a file in
# /etc/modprobe.d:
# blacklist module
# See "man modprobe.conf" for details.
#
MODULES=(fuse acpi-cpufreq cpufreq_ondemand loop)
# Udev settle timeout (default to 30)
UDEV_TIMEOUT=30
# Scan for FakeRAID (dmraid) Volumes at startup
USEDMRAID="no"
# Scan for BTRFS volumes at startup
USEBTRFS="no"
# Scan for LVM volume groups at startup, required if you use LVM
USELVM="no"
# -----------------------------------------------------------------------
# NETWORKING
# -----------------------------------------------------------------------
#
# HOSTNAME: Hostname of machine. Should also be put in /etc/hosts
#
HOSTNAME="GLaDOS"
# Use 'ip addr' or 'ls /sys/class/net/' to see all available interfaces.
#
# Wired network setup
# - interface: name of device (required)
# - address: IP address (leave blank for DHCP)
# - netmask: subnet mask (ignored for DHCP) (optional, defaults to 255.255.255.0)
# - broadcast: broadcast address (ignored for DHCP) (optional)
# - gateway: default route (ignored for DHCP)
#
# Static IP example
# interface=eth0
# address=192.168.0.2
# netmask=255.255.255.0
# broadcast=192.168.0.255
# gateway=192.168.0.1
#
# DHCP example
# interface=eth0
# address=
# netmask=
# gateway=
interface=eth0
address=
netmask=
broadcast=
gateway=
# Setting this to "yes" will skip network shutdown.
# This is required if your root device is on NFS.
NETWORK_PERSIST="no"
# Enable these netcfg profiles at boot-up. These are useful if you happen to
# need more advanced network features than the simple network service
# supports, such as multiple network configurations (ie, laptop users)
# - set to 'menu' to present a menu during boot-up (dialog package required)
# - prefix an entry with a ! to disable it
#
# Network profiles are found in /etc/network.d
#
# This requires the netcfg package
#
#NETWORKS=(main)
# -----------------------------------------------------------------------
# DAEMONS
# -----------------------------------------------------------------------
#
# Daemons to start at boot-up (in this order)
# - prefix a daemon with a ! to disable it
# - prefix a daemon with a @ to start it up in the background
#
# If something other takes care of your hardware clock (ntpd, dual-boot...)
# you should disable 'hwclock' here.
#
DAEMONS=(hwclock syslog-ng dbus networkmanager !wicd hal fam netfs alsa @cpusd @timidity++ !dropboxd-userspace crond)

Cosas a destacar:

• HARDWARECLOCK: Al tener Windows instalado antes con poner localtime o UTC iba bien (si no era con uno, era con otro, por no acordarme ha nacido este blog) a día de hoy me va mejor no poniendo nada. Queda pendiente explicar cómo arreglar la hora, ya que es un problema muy molesto.
• CONSOLEFONT: Si da problemas es porque el valor puesto no existe en /usr/share/kbd/consolefonts
• MODULES: El módulo «loop» es necesario para poder montar particiones cifradas, es decir para poder usar el ecryptfs.
• DAEMONS: Si instalamos wicd hay que quitarle la negación y ponérsela al networkmanager. Y hal y fam están obsoletos, gamin¹ ha sustituido a fam y no es un demonio, así que no hay que ponerlo en la lista.

Nota importante: Los comentarios del propio fichero ayudan mucho para su comprensión, no hay que irse muy lejos para entender este .conf.
¹ Gracias a aetsu.