///// vim:set ts=4 sw=4 syntax=asciidoc noet: ///// rc.conf(5) ========== NAME ---- rc.conf - Arch Linux main configuration file SYNOPSIS -------- /etc/rc.conf DESCRIPTION ----------- The /etc/rc.conf file is the system configuration file for Arch-specific settings. The format is bash. It contains several commonly-edited settings such as time zone, keymap, kernel modules, daemons to load at start-up, etc. It is split up in a few sections to categorize configuration settings: localization, hardware, networking, and daemons. LOCALIZATION[[L]] ----------------- *LOCALE=* This sets your system language, which will be used by all i18n-friendly applications and utilities. See `locale -a` (or locale.gen) for available options. If leave empty, LANG in /etc/locale.conf will be used. If unset in both, it falls back to the C locale. *TIMEZONE=* Specifies the time zone. The setting takes effect on boot by ensuring that /etc/localtime is a symlink to the correct zoneinfo file. Possible time zones are the relative path to a zoneinfo file starting from the directory /usr/share/zoneinfo. For example, a German time zone would be Europe/Berlin, which refers to the file /usr/share/zoneinfo/Europe/Berlin. Note: If empty, /etc/localtime is not changed. This is useful if /etc/localtime is maintained manually or by a third-party tool, or if there is no reason to change it from what was set during install. *HARDWARECLOCK=* How to interpret/update the hardware clock. (used by hwclock) Options: - empty: fall back to the value in /etc/adjtime, which defaults to UTC. - "UTC": allows operating systems to abstract local time and ease DST. - "localtime": apply time zone (and DST) in hardwareclock. Choose this if you dual-boot with an OS which cannot handle UTC BIOS times correctly, like Windows (note that recent Windows versions can use UTC, which is preferable). - any other value will result in the hardware clock being left untouched (useful for virtualization) *CONSOLEFONT=* Defines the console font to load with the setfont program on boot. Possible fonts are found in /usr/share/kbd/consolefonts (only needed for non-US). If both CONSOLEFONT and KEYMAP leave empty, FONT in /etc/vconsole.conf will be used. *CONSOLEMAP=* Defines the console map to load with the setfont program on boot. Possible maps are found in /usr/share/kbd/consoletrans. Set this to a map suitable for the appropriate locale (8859-1 for Latin1, for example) if you're using an UTF-8 locale and use programs that generate 8-bit output. If you're using X11 for everyday work, don't bother, as it only affects the output of Linux console applications. If both CONSOLEFONT and KEYMAP leave empty, FONT_MAP in /etc/vconsole.conf will be used. *KEYMAP=* Defines the keymap to load with the loadkeys program on boot. Possible keymaps are found in /usr/share/kbd/keymaps. Please note that this setting is only valid for your TTYs, not any graphical window managers or X. If both CONSOLEFONT and KEYMAP leave empty, KEYMAP in /etc/vconsole.conf will be used. *USECOLOR=* Use ANSI color sequences in start-up messages, unless set to 'no'. Default: 'yes' HARDWARE[[H]] ------------- *MODULES=* Modules to load at boot-up. Prefix with a ! to blacklist. Alternatively you can add following line in a file in /etc/modprobe.d: blacklist See man modprobe.d(5) for details. If leave empty, contents of modules-load.d will be used. *USEDMRAID=* Scan for FakeRAID (dmraid) volumes at start-up. Default: 'no' *USELVM=* Scan for LVM volume groups at start-up. This is required if you use LVM. Default: 'no' NETWORKING[[N]] --------------- *HOSTNAME=* Hostname of machine. Should also be put in /etc/hosts, unless nss-myhostname is used. If leave empty, the contents of /etc/hostname (if exists) will be used. The following settings help you setting up a wired network. *interface=* Name of device. Use `ip addr` or `ls /sys/class/net/` to see all available interfaces. Required for manual configuration. If using DHCP, it can be left unset, see dhcpcd(5) for details. *address=* IP address. Required for manual configuration. If left empty, DHCP will be used. *netmask=* Subnet mask. Defaults to 255.255.255.0. Ignored when using DHCP. *broadcast=* Broadcast address. Optional for manual configuration, ignored for DHCP. *gateway=* Default route. Required for manual configuration, ignored for DHCP. The following options might be needed for advanced use-cases. *NETWORK_PERSIST=* Setting this to "yes" will skip network shutdown. This is required if your root device is on NFS. DAEMONS[[D]] ------------ *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 you are sure nothing else touches your hardware clock (such as ntpd or by dual-booting), you might want to enable 'hwclock'. Note that this will only make a difference if the hwclock program has been calibrated correctly. If you use a network filesystem, you should enable 'netfs'. Default: (syslog-ng network crond) SEE ALSO -------- hostname(5), vconsole.conf(5), locale.conf(5), hwclock(8), modules-load.d(5), modprobe.d(5), ip(8), dhcpcd(8) AUTHORS ------- Written by Dieter Plaetinck, Tom Gundersen, and others.