Difference between revisions of "Beginners' guide"

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(Hardware clock: why would HARDWARECLOCK be set in /etc/rc.conf? You're starting out fresh)
(#REDIRECT Installation guide, merge completed, see Talk:Installation_guide#BG_merge)
 
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#REDIRECT [[Installation guide]]
[[Category:Getting and installing Arch]]
 
[[Category:About Arch]]
 
[[da:Beginners' Guide/Installation]]
 
[[es:Beginners' Guide/Installation]]
 
[[hr:Beginners' Guide/Installation]]
 
[[hu:Beginners' Guide/Installation]]
 
[[it:Beginners' Guide/Installation]]
 
[[ko:Beginners' Guide/Installation]]
 
[[nl:Beginners' Guide/Installatie]]
 
[[pt:Beginners' Guide/Installation]]
 
[[ru:Beginners' Guide/Installation]]
 
[[sr:Beginners' Guide/Installation]]
 
[[zh-CN:Beginners' Guide/Installation]]
 
{{Tip|This is part of a multi-page article for The Beginners' Guide. '''[[Beginners' Guide|Click here]]''' if you would rather read the guide in its entirety.}}
 
</noinclude>
 
== Installation ==
 
 
 
You are now presented with a shell prompt, automatically logged in as root.
 
 
 
=== Change the language ===
 
 
 
{{Tip|These are optional for the majority of users. Useful only if you plan on writing in your own language in any of the configuration files, if you use diacritical marks in the wifi password, or if you would like to receive system messages (e.g. possible errors) in your own language.}}
 
 
 
By default, the keyboard layout is set to {{ic|us}}. If you have a non-[[Wikipedia:File:KB_United_States-NoAltGr.svg|US]] keyboard layout, run:
 
 
 
# loadkeys ''layout''
 
 
 
...where ''layout'' can be {{ic|fr}}, {{ic|uk}}, {{ic|be-latin1}}, etc. See [[KEYMAP#Keyboard_layouts|here]] for a comprehensive list.
 
 
 
The font should also be changed, because most languages use more glyphs than the 26 letter [[Wikipedia:English_alphabet|English alphabet]]. Otherwise some foreign characters may show up as white squares or as other symbols. Note that the name is case-sensitive, so please type it ''exactly'' as you see it:
 
 
 
# setfont Lat2-Terminus16
 
 
 
By default, the language is set to English (US). If you would like to change the language for the install process ''(German, in this example)'', remove the {{ic|#}} in front of the [http://www.greendesktiny.com/support/knowledgebase_detail.php?ref=EUH-483 locale] you want from {{ic|/etc/locale.gen}}, along with English (US). Please choose the {{ic|UTF-8}} entry.
 
 
 
Use {{Keypress|Ctrl+X}} to exit, and when prompted to save changes, press {{Keypress|Y}} and {{Keypress|Enter}} to use the same filename.
 
 
 
{{hc|# nano /etc/locale.gen|
 
en_US.UTF-8 UTF-8
 
de_DE.UTF-8 UTF-8}}
 
 
 
# locale-gen
 
# export LANG=de_DE.UTF-8
 
 
 
Remember, {{Keypress|LAlt+LShift}} activates and deactivates the keymap.
 
 
 
=== Establish an internet connection ===
 
 
 
The {{ic|dhcpcd}} network daemon is started automatically at boot and it will attempt to start a wired connection, if available. Try pinging a website to see if it was successful. And since Google is always on...
 
 
 
{{hc|# ping -c 3 www.google.com|2=
 
PING www.l.google.com (74.125.132.105) 56(84) bytes of data.
 
64 bytes from wb-in-f105.1e100.net (74.125.132.105): icmp_req=1 ttl=50 time=17.0 ms
 
64 bytes from wb-in-f105.1e100.net (74.125.132.105): icmp_req=2 ttl=50 time=18.2 ms
 
64 bytes from wb-in-f105.1e100.net (74.125.132.105): icmp_req=3 ttl=50 time=16.6 ms
 
 
 
--- www.l.google.com ping statistics ---
 
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
 
rtt min/avg/max/mdev = 16.660/17.320/18.254/0.678 ms}}
 
 
 
If you get a {{ic|ping: unknown host}} error, you will need to set up the network manually, as explained below.
 
 
 
Otherwise, move on to [[#Prepare_the_storage_drive|Prepare the storage drive]].
 
 
 
==== Wired ====
 
 
 
Follow this procedure if you need wired connectivity (Ethernet) during the installation process.
 
 
 
If your computer is connected to an Ethernet network, in most cases, you will have one interface, called {{ic|eth0}}. If you have additional network cards (apart from the one integrated on the motherboard, for example), their name will follow the sequence {{ic|eth1}}, {{ic|eth2}}, etc.
 
 
 
You need to know these settings:
 
 
 
* Static IP address.
 
* Subnet mask.
 
* Gateway's IP address.
 
* Name servers' (DNS) IP addresses.
 
* Domain name (unless you're on a local LAN, in which case you can make it up).
 
 
 
Activate the connected Ethernet interface, e.g. for {{ic|eth0}}:
 
 
 
# ip link set eth0 up
 
 
 
Add the address:
 
 
 
# ip addr add <ip address>/<subnetmask> dev <interface>
 
 
 
For example:
 
 
 
# ip addr add 192.168.1.2/24 dev eth0
 
 
 
For more options, run {{ic|man ip}}.
 
 
 
Add your gateway like this, substituting your own gateway's IP address:
 
 
 
# ip route add default via <ip address>
 
 
 
For example:
 
 
 
# ip route add default via 192.168.1.1
 
 
 
Edit {{ic|resolv.conf}}, substituting your name servers' IP addresses and your local domain name:
 
 
 
{{hc|# nano /etc/resolv.conf|
 
nameserver 61.23.173.5
 
nameserver 61.95.849.8
 
search example.com}}
 
 
 
{{Note|Currently, you may include a maximum of 3 {{ic|nameserver}} lines.}}
 
 
 
You should now have a working network connection. If you do not, check the detailed [[Configuring Network]] page.
 
 
 
==== Wireless ====
 
 
 
Follow this procedure if you need wireless connectivity (WiFi) during the installation process.
 
 
 
The wireless drivers and utilities are now available to you in the live environment of the installation media. A good knowledge of your wireless hardware will be of key importance to successful configuration. Note that the following quick-start procedure ''executed at this point in the installation'' will initialize your wireless hardware for use ''in the live environment of the installation media''. These steps (or some other form of wireless management) '''must be repeated from the actual installed system after booting into it'''.
 
 
 
Also note that these steps are optional if wireless connectivity is unnecessary at this point in the installation; wireless functionality may always be established later.
 
 
 
{{Note|The following examples use {{ic|wlan0}} for the interface and {{ic|linksys}} for the ESSID. Remember to change these values according to your setup.}}
 
 
 
The basic procedure will be:
 
 
 
* (optional) Identify the wireless interface:
 
 
 
# lspci | grep -i net
 
 
 
Or, if using a USB adapter:
 
 
 
# lsusb
 
 
 
* Ensure udev has loaded the driver, and that the driver has created a usable wireless kernel interface with {{ic|iwconfig}}:
 
 
 
{{Note|If you do not see output similar to this, then your wireless driver has not been loaded. If this is the case, you must load the driver yourself. Please see [[Wireless Setup]] for more detailed information.}}
 
 
 
{{hc|# iwconfig|2=
 
lo no wireless extensions.
 
eth0 no wireless extensions.
 
wlan0    unassociated  ESSID:""
 
        Mode:Managed  Channel=0  Access Point: Not-Associated
 
        Bit Rate:0 kb/s  Tx-Power=20 dBm  Sensitivity=8/0
 
        Retry limit:7  RTS thr:off  Fragment thr:off
 
        Power Management:off
 
        Link Quality:0  Signal level:0  Noise level:0
 
        Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
 
        Tx excessive retries:0  Invalid misc:0  Missed beacon:0}}
 
 
 
In this example, {{ic|wlan0}} is the available wireless interface.
 
 
 
* Bring the interface up with:
 
 
 
# ip link set wlan0 up
 
 
 
A small percentage of wireless chipsets also require firmware, in addition to a corresponding driver. If the wireless chipset requires firmware, you are likely to receive this error when bringing the interface up:
 
 
 
{{hc|# ip link set wlan0 up|
 
SIOCSIFFLAGS: No such file or directory}}
 
 
 
If unsure, invoke {{ic|dmesg}} to query the kernel log for a firmware request from the wireless chipset.
 
 
 
Example output from an Intel chipset which requires and has requested firmware from the kernel at boot:
 
 
 
{{hc|# dmesg <nowiki>|</nowiki> grep firmware|
 
firmware: requesting iwlwifi-5000-1.ucode}}
 
 
 
If there is no output, it may be concluded that the system's wireless chipset does not require firmware.
 
 
 
{{Warning|Wireless chipset firmware packages (for cards which require them) are pre-installed under {{ic|/usr/lib/firmware}} in the live environment (on CD/USB stick) '''but must be explicitly installed to your actual system to provide wireless functionality after you reboot into it!''' Package installation is covered later in this guide. Ensure installation of both your wireless module and firmware before rebooting! See [[Wireless Setup]] if you are unsure about the requirement of corresponding firmware installation for your particular chipset.}}
 
 
 
Next, use {{pkg|netcfg}}'s wifi-menu to connect to a network:
 
 
 
# wifi-menu wlan0
 
 
 
You should now have a working network connection. If you do not, check the detailed [[Wireless Setup]] page.
 
 
 
==== xDSL (PPPoE), analog modem or ISDN ====
 
 
 
If you have a router in bridge mode, run:
 
 
 
# pppoe-setup
 
 
 
* Type in the username that the ISP provided you with.
 
* Press {{Keypress|Enter}} for "eth0".
 
* Press {{Keypress|Enter}} for "no", so that it stays up continuously.
 
* Type {{ic|server}} (since this is usually the case).
 
* Press {{Keypress|1}} for a firewall.
 
* Type in the password that the ISP provided you with.
 
* Press {{Keypress|y}} at the end.
 
 
 
To use these settings and connect to your ISP, run:
 
 
 
# pppoe-start
 
 
 
For an analog modem (dial-up) and ISDN, see [[Direct Modem Connection]].
 
 
 
==== Behind a proxy server ====
 
 
 
If you are behind a proxy server, you will need to export the {{ic|http_proxy}} and {{ic|ftp_proxy}} environment variables. '''[[Proxy|Click here]]''' for more information.
 
 
 
=== Prepare the storage drive ===
 
 
 
{{Warning|Partitioning can destroy data. You are '''strongly''' cautioned and advised to backup any critical data before proceeding.}}
 
 
 
Absolute beginners are encouraged to use a graphical partitioning tool. [http://gparted.sourceforge.net/download.php GParted] is a good example, ran from a "live" Linux distribution such as [[Wikipedia:Parted_Magic|Parted Magic]], [[Wikipedia:Ubuntu_(operating_system)|Ubuntu]], [[Wikipedia:Linux_Mint|Linux Mint]], etc. See [[Partitioning]] for some general tips and make sure to format the partitions with a filesystem (e.g. '''ext4''', '''btrfs''', etc) before rebooting.
 
 
 
If you have already done so, proceed to [[#Mount_the_partitions|Mount the partitions]].
 
 
 
Otherwise, see the following example.
 
 
 
==== Example ====
 
 
 
The Arch Linux install media includes the following partitioning tools:
 
 
 
* [[Wikipedia:cfdisk|cfdisk]] – supports only [[MBR]] partition tables.
 
 
 
* [[Wikipedia:gdisk|gdisk]] – supports only [[GPT]] partition tables.
 
 
 
* [[Wikipedia:parted|parted]] – supports both.
 
 
 
This example uses '''cfdisk''', but it can be easily followed using '''gdisk''', which will allow for GPT partitioning.
 
 
 
{{Note|If you are installing to a USB flash key, see [[Installing Arch Linux on a USB key]].}}
 
 
 
{{Note|If you are not dual booting with Windows, then it is advisable to use [[GPT]] instead of [[MBR]]. GPT partitioning can only be done with '''gdisk''' or '''parted'''. Read [[GPT]] for the list of advantages.}}
 
 
 
# cfdisk /dev/sda
 
 
 
The example system will contain a 15GB root ({{ic|/}}) partition, a 1GB {{ic|swap}} partition, and a {{ic|/home}} partition for the remaining space.
 
 
 
It should be emphasized that partitioning is a personal choice and that this example is only for illustrative purposes. See [[Partitioning]].
 
 
 
{{Note|If you have a UEFI motherboard you will need another partition to host the UEFI System partition. Read [[Unified_Extensible_Firmware_Interface#Create_an_UEFI_System_Partition_in_Linux|this article]].}}
 
 
 
;Root
 
 
 
* Choose New (or press {{Keypress|N}}).
 
* Press {{Keypress|Enter}} for Primary.
 
* Type "15440".
 
* Press {{Keypress|Enter}} for Beginning.
 
* Press {{Keypress|Enter}} for Bootable.
 
 
 
;Swap
 
 
 
* Press the down arrow to move to the free space area and choose New (or press {{Keypress|N}}).
 
* Press {{Keypress|Enter}} for Primary.
 
* Type "1024".
 
* Press {{Keypress|Enter}} for Beginning.
 
* Choose Type (or press {{Keypress|T}}).
 
* Press any key to scroll down the list.
 
* Press {{Keypress|Enter}} for {{ic|82}}.
 
 
 
;Home
 
 
 
* Press the down arrow to move to the free space area and choose New (or press {{Keypress|N}}).
 
* Press {{Keypress|Enter}} for Primary.
 
* Press {{Keypress|Enter}} to use the rest of the drive (or you could type in the desired size).
 
 
 
Here's how it should look like:
 
 
 
Name    Flags    Part Type    FS Type          [Label]      Size (MB)
 
-----------------------------------------------------------------------
 
sda1    Boot      Primary    Linux                            15440
 
sda2              Primary    Linux swap / Solaris              1024
 
sda3              Primary    Linux                            133000*
 
 
 
Double check and make sure that you are happy with the partition sizes as well as the partition table layout before continuing.
 
 
 
If you would like to start over, you can simply select Quit (or press {{Keypress|Q}}) to quit without saving changes and then restart cfdisk.
 
 
 
If you are satisfied, choose Write (or press {{Keypress|Shift+W}}) to finalize and to write the partition table to the drive. Type "yes" and choose Quit (or press {{Keypress|Q}}) to exit cfdisk without making any more changes.
 
 
 
Simply partitioning is not enough; the partitions also need a [[File Systems|filesystem]]. To format the partitions with an ext4 filesystem:
 
 
 
# mkfs.ext4 /dev/sda1
 
# mkfs.ext4 /dev/sda3
 
 
 
Format and activate the swap partition:
 
 
 
# mkswap /dev/sda2
 
# swapon /dev/sda2
 
 
 
=== Mount the partitions ===
 
 
 
Each partition is identified with a number suffix. For example, {{ic|sda1}} specifies the first partition of the first drive, while {{ic|sda}} designates the entire drive.
 
 
 
To see the current partition layout:
 
 
 
# lsblk /dev/sda
 
 
 
Pay attention, because the mounting order is important.
 
 
 
First, mount the root partition on {{ic|/mnt}}. Following the example above (yours may be different), it would be:
 
 
 
# mount /dev/sda1 /mnt
 
 
 
Then mount any other separate partition (/home, /boot, /var, etc), if you have any:
 
 
# mkdir /mnt/home
 
# mount /dev/sda3 /mnt/home
 
# mkdir /mnt/boot
 
# mount /dev/sda''x'' /mnt/boot
 
 
 
=== Select a mirror ===
 
 
 
Before installing, you may want to edit the {{ic|mirrorlist}} file and place your preferred mirror first. A copy of this file will be installed on your new system by {{ic|pacstrap}} as well, so it's worth getting it right.
 
 
 
{{hc|# nano /etc/pacman.d/mirrorlist|2=
 
##
 
## Arch Linux repository mirrorlist
 
## Sorted by mirror score from mirror status page
 
## Generated on 2012-MM-DD
 
##
 
 
 
Server = http://mirror.example.xyz/archlinux/$repo/os/$arch
 
...}}
 
 
 
* {{Keypress|Alt+6}} to copy a {{ic|Server}} line.
 
* {{Keypress|PageUp}} key to scroll up.
 
* {{Keypress|Ctrl+U}} to paste it at the top of the list.
 
* {{Keypress|Ctrl+X}} to exit, and when prompted to save changes, press {{Keypress|Y}} and {{Keypress|Enter}} to use the same filename.
 
 
 
If you want, you can make it the ''only'' mirror available by getting rid of everything else (using {{Keypress|Ctrl+K}}), but it's usually a good idea to have a few more, in case the first one goes offline.
 
 
 
{{Tip|Use the [http://www.archlinux.org/mirrorlist/ Mirrorlist Generator] to get an updated list for your country. HTTP mirrors are faster than FTP, because of something called [[Wikipedia:Keepalive|keepalive]]. With FTP, pacman has to send out a signal each time it downloads a package, resulting in a brief pause.}}
 
 
 
=== Install the base system ===
 
 
 
The base system is installed using the [https://github.com/falconindy/arch-install-scripts/blob/master/pacstrap.in pacstrap] script.
 
 
 
# pacstrap /mnt base base-devel
 
 
 
* {{Grp|base}}: Software packages from the [core] repo to provide the minimal base environment.
 
 
 
* {{Grp|base-devel}}: Extra tools from [core] such as {{ic|make}}, and {{ic|automake}}. Most beginners should choose to install it, as it will likely be needed to expand the system. The ''base-devel'' group will be required to install software from the [[Arch User Repository]].
 
 
 
This will give you a basic Arch system. Other packages can be installed later using [[pacman]].
 
 
 
{{Note|If pacman fails to verify your packages, check your system time. If the system date is invalid (e.g. it shows year 2010), signing keys will be considered expired (or invalid), signature checks on packages will fail and installation will be interrupted. Make sure to correct the system time, either by doing so manually or with the {{Pkg|ntp}} client, and retry running the pacstrap command. Refer to [[Time]] page for more information on correcting system time.}}
 
 
 
=== Generate an fstab ===
 
 
 
Generate an [[fstab]] file with the following command. If you prefer to use UUIDs or labels, add the {{ic|-U}} or {{ic|-L}} option, respectively. It's also a good idea to check it before continuing:
 
 
 
# genfstab -p /mnt > /mnt/etc/fstab
 
# nano /mnt/etc/fstab
 
 
 
Only the root ({{ic|/}}) partition needs {{ic|1}} for the last field. Everything else should have either {{ic|2}} or {{ic|0}} (see [[Fstab#Field_definitions|Field definitions]]).
 
 
 
Also, {{ic|1=data=ordered}} should be removed because it will be automatically used whether you specify it or not.
 
 
 
=== Chroot and configure the base system ===
 
 
 
Next, we [[chroot]] into our newly installed system:
 
 
 
# arch-chroot /mnt
 
 
 
At this stage of the installation, you will configure the primary configuration files of your Arch Linux base system. These can either be created if they do not exist, or edited if you wish to change the defaults.
 
 
 
Closely following and understanding these steps is of key importance to ensure a properly configured system.
 
 
 
==== Locale ====
 
 
 
Locales are used by '''glibc''' and other locale-aware programs or libraries for rendering text, correctly displaying regional monetary values, time and date formats, alphabetic idiosyncrasies, and other locale-specific standards.
 
 
 
There are two files that need editing: {{ic|locale.gen}} and {{ic|locale.conf}}.
 
 
 
* The {{ic|locale.gen}} file is empty by default (everything is commented out) and you need to remove the {{ic|#}} in front of the line(s) you want. You may uncomment more lines than just English (US), as long as you choose their {{ic|UTF-8}} encoding:
 
 
 
{{hc|# nano /etc/locale.gen|
 
en_US.UTF-8 UTF-8
 
de_DE.UTF-8 UTF-8}}
 
 
 
# locale-gen
 
 
 
This will run on every '''glibc''' upgrade, generating all the locales specified in {{ic|/etc/locale.gen}}.
 
 
 
* The {{ic|locale.conf}} file doesn't exist by default. Setting only {{ic|LANG}} should be enough. It will act as the default value for all other variables.
 
 
 
# echo LANG=en_US.UTF-8 > /etc/locale.conf
 
# export LANG=en_US.UTF-8
 
 
 
{{Note|If you set some other language than English at the beginning of the install, the above commands would be something like:
 
# echo LANG<nowiki>=</nowiki>de_DE.UTF-8 > /etc/locale.conf
 
# export LANG<nowiki>=</nowiki>de_DE.UTF-8
 
}}
 
 
 
To use other {{ic|LC_*}} variables, first run {{ic|locale}} to see the available options. An advanced example can be found [[Locale#Setting_system-wide_locale|here]].
 
 
 
{{Warning|Using the {{ic|LC_ALL}} variable is strongly discouraged because it overrides everything.}}
 
 
 
==== Console font and keymap ====
 
 
 
If you set a keymap at [[#Change_the_language|the beginning]] of the install process, load it now, as well, because the environment has changed. For example:
 
 
 
# loadkeys ''de-latin1''
 
# setfont Lat2-Terminus16
 
 
 
To make them available after reboot, edit {{ic|vconsole.conf}}:
 
 
 
{{hc|# nano /etc/vconsole.conf|2=
 
KEYMAP=de-latin1
 
FONT=Lat2-Terminus16
 
FONT_MAP=}}
 
 
 
* {{ic|KEYMAP}} – Please note that this setting is only valid for your TTYs, not any graphical window managers or '''Xorg'''.
 
 
 
* {{ic|FONT}} – Available alternate console fonts reside in {{ic|/usr/share/kbd/consolefonts/}}. The default (blank) is safe, but some foreign characters may show up as white squares or as other symbols. It's recommended that you change it to {{ic|Lat2-Terminus16}}, because according to {{ic|/usr/share/kbd/consolefonts/README.Lat2-Terminus16}}, it claims to support "about 110 language sets".
 
 
 
* {{ic|FONT_MAP}} – Defines the console map to load at boot. Read {{ic|man setfont}}. The default (blank) is safe.
 
 
 
See [[Fonts#Console_fonts|Console fonts]] and {{ic|man vconsole.conf}} for more information.
 
 
 
==== Timezone ====
 
 
 
Available time zones and subzones can be found in the {{ic|/usr/share/zoneinfo/<Zone>/<SubZone>}} directories.
 
 
 
To view the available <Zone>, check the directory {{ic|/usr/share/zoneinfo/}}:
 
 
 
# ls /usr/share/zoneinfo/
 
 
 
Similarly, you can check the contents of directories belonging to a <SubZone>:
 
 
 
# ls /usr/share/zoneinfo/Europe
 
 
 
Create a symbolic link {{ic|/etc/localtime}} to your zone file {{ic|/usr/share/zoneinfo/<Zone>/<SubZone>}} using this command:
 
 
 
# ln -s {{ic|/usr/share/zoneinfo/<Zone>/<SubZone>}} /etc/localtime
 
 
 
'''Example:'''
 
 
 
# ln -s /usr/share/zoneinfo/Europe/Minsk /etc/localtime
 
 
 
If you are using systemd's timedated, you might wish to also edit the file {{ic|/etc/timezone}} and write your {{ic|Zone}}/{{ic|Subzone}}.
 
 
 
'''Example:'''
 
 
 
{{hc|# nano /etc/timezone|
 
Europe/Minsk}}
 
 
 
Read {{ic|man tzset}} for more options.
 
 
 
The need for {{ic|/etc/timezone}} might go away in the future [http://cgit.freedesktop.org/systemd/systemd/commit/?id=9cb48731b29f508178731b45b0643c816800c05e].
 
 
 
==== Hardware clock ====
 
 
 
Set the hardware clock mode uniformly between your operating systems. Otherwise, they may overwrite the hardware clock and cause time shifts.
 
 
 
You can generate {{ic|/etc/adjtime}} automatically by using one of the following commands:
 
 
 
* '''UTC''' (recommended)
 
 
 
: {{Note|Using [[Wikipedia:Coordinated Universal Time|UTC]] for the hardware clock does not mean that software will display time in UTC.}}
 
 
 
: {{bc|# hwclock --systohc --utc}}
 
 
 
* '''localtime''' (discouraged; used by default in Windows)
 
 
 
: {{Warning|Using ''localtime'' may lead to several known and unfixable bugs. However, there are no plans to drop support for ''localtime''.}}
 
 
 
: {{bc|# hwclock --systohc --localtime}}
 
 
 
If you have (or planning on having) a dual boot setup with Windows:
 
 
 
* Recommended: Set both Arch Linux and Windows to use UTC. A quick [[Time#UTC_in_Windows|registry fix]] is needed. Also, be sure to prevent Windows from synchronizing the time on-line, because the hardware clock will default back to ''localtime''. If you want such functionality (NTP sync), you should use [[ntpd]] on your Arch Linux installation instead.
 
 
 
* Not recommended: Set Arch Linux to ''localtime'' and remove any time-related daemons from {{ic|/etc/rc.conf}}. This will let Windows take care of hardware clock corrections and you will need to remember to boot into Windows at least two times a year (in Spring and Autumn) when [[Wikipedia:Daylight_savings_time|DTS]] kicks in. So please don't ask on the forums why the clock is one hour behind or ahead if you usually go for days or weeks without booting into Windows.
 
 
 
==== Kernel modules ====
 
 
 
{{Tip|This is just an example, you do not need to set it. All needed modules are automatically loaded by udev, so you will rarely need to add something here. Only add modules that you know are missing.}}
 
 
 
For kernel modules to load during boot, place a {{ic|*.conf}} file in {{ic|/etc/modules-load.d/}}, with a name based on the program that uses them.
 
 
 
{{hc|# nano /etc/modules-load.d/virtio-net.conf|
 
# Load 'virtio-net.ko' at boot.
 
 
 
virtio-net}}
 
 
 
If there are more modules to load per {{ic|*.conf}}, the module names can be separated by newlines. A good example can be found [[VirtualBox#Auto-start_modules|here]].
 
 
 
Empty lines and lines starting with {{ic|#}} or {{ic|;}} are ignored.
 
 
 
==== Daemons ====
 
 
 
{{Tip|The {{ic|DAEMONS}} line need not be changed at this time, but it is useful to explain what daemons are, as they will be addressed later in this guide.}}
 
 
 
[[Wikipedia:Daemon (computing)|Daemons]] are programs that run in the background, waiting for events to occur and offering services. A few good examples are: a web server that waits for a request to deliver a page (e.g. {{ic|httpd}}), an SSH server waiting for a user to log in (e.g. {{ic|sshd}}), a daemon which writes system messages to a log file (e.g. {{ic|syslog-ng}}), a BitTorrent client (e.g. {{ic|rtorrent}}, {{ic|deluged}}), a music player (e.g. {{ic|mpd}}), a login manager (e.g. {{ic|gdm}}, {{ic|slim}}), a firewall (e.g. {{ic|iptables}}), etc. While these are full-featured applications, their work is usually not that visible. Their main advantage is that even if Xorg crashes (or is absent from the system), they will continue to work.
 
 
 
Daemons can be added to the {{ic|DAEMONS}} line in {{ic|/etc/rc.conf}} and they will start when the system boots, in the order that they are placed. Their names are the equivalent scripts from {{ic|/etc/rc.d/}}.
 
 
 
{{hc|# nano /etc/rc.conf|2=
 
DAEMONS=(network @syslog-ng netfs @crond)}}
 
 
 
* If a script name is prefixed with a bang ({{ic|!}}), it is not run.
 
 
 
* If a script is prefixed with an "at" symbol ({{ic|@}}), it is run in the background; the startup sequence will not wait for successful completion of this daemon before continuing to the next (this may shorten system boot time). Do not background daemons that are needed by other daemons. For example, {{ic|mpd}} depends on {{ic|network}}, so backgrounding {{ic|network}} may cause {{ic|mpd}} to break.
 
 
 
* Edit this line whenever new system services are installed, if starting them automatically during boot is desired.
 
 
 
A list of available services (and their running status) can be found using the command:
 
 
 
# rc.d list
 
 
 
==== Hostname ====
 
 
 
Add your ''hostname'' in {{ic|/etc/hostname}}:
 
 
 
# echo '''myhostname''' > /etc/hostname
 
 
 
Set it to your liking (e.g. ''arch''). This is the name of your computer. And add it to {{ic|/etc/hosts}}, as well:
 
 
 
{{Warning|This format, including {{ic|localhost}} and your actual hostname, is required for program compatibility. Errors in these entries may cause poor network performance and/or certain programs to open very slowly, or not work at all.}}
 
 
 
{{hc|# nano /etc/hosts|
 
127.0.0.1  localhost.localdomain  localhost '''myhostname'''
 
::1        localhost.localdomain  localhost '''myhostname'''
 
 
#192.168.1.100 '''myhostname'''.domain.org '''myhostname'''  #Uncomment if you use a static IP and remove this comment.}}
 
 
 
{{Note|{{ic|::1}} is the IPv6 equivalent of {{ic|127.0.0.1}} and should be added.}}
 
 
 
{{Tip|For convenience, you may also use {{ic|/etc/hosts}} aliases for hosts on your network, and/or on the Web.
 
 
 
192.168.1.90 media
 
192.168.1.88 data
 
 
 
The above example would allow you access a media and data server on your network by name and without the need for typing out their respective IP addresses.}}
 
 
 
=== Configure the network ===
 
 
 
You need to configure the network again, but this time for your newly installed environment. The procedure and prerequisites are very similar to the one described [[#Establish_an_internet_connection|above]], except we are going to make it persistent and automatically run at boot.
 
 
 
{{Note|For more in-depth information on network configration, visit [[Configuring Network]] and [[Wireless Setup]].}}
 
 
 
==== Wired ====
 
 
 
If you only use a single fixed wired network connection, you can use the {{ic|network}} daemon, a simple solution for both dynamic and static IP addressing.
 
 
 
First, ensure that the daemon is listed in the {{ic|DAEMONS}} array:
 
 
 
{{hc|# nano /etc/rc.conf|2=
 
DAEMONS=(... network ...)}}
 
 
 
Then configure the {{ic|NETWORKING}} section of {{ic|/etc/rc.conf}} as follows, depending on your IP addressing type:
 
 
 
; Dynamic IP
 
 
 
Assuming the network interface to activate at start is {{ic|eth0}}, use this configuration:
 
 
 
interface=eth0
 
address=
 
netmask=
 
gateway=
 
 
 
Your DNS server addresses will be automatically filled in by the {{ic|dhcpcd}} daemon.
 
 
 
; Static IP
 
 
 
If you have a static IP address, use this configuration:
 
 
 
interface=eth0
 
address=192.168.0.2
 
netmask=255.255.255.0
 
broadcast=192.168.0.255
 
gateway=192.168.0.1
 
 
 
You will also need to add your name servers' (DNS) IP addresses and your local domain name to your {{ic|/etc/resolv.conf}} like this:
 
 
 
nameserver 61.23.173.5
 
nameserver 61.95.849.8
 
search example.com
 
 
 
{{Tip|The {{ic|network}} daemon is suitable for systems connecting wired to a single network. For multiple network configurations (e.g. using a laptop), it is recommended to use a network manager program, such as [[netcfg]], which has been designed to manage both wired and wireless connections.}}
 
 
 
==== Wireless ====
 
 
 
The {{ic|network}} daemon is not sufficient to handle wireless networking. You will need to install other programs to configure and manage wireless network profiles, such as [[netcfg]].
 
 
 
[[NetworkManager]] and [[Wicd]] are other popular alternatives.
 
 
 
* Install the required packages:
 
 
 
# pacman -S wireless_tools netcfg
 
 
 
If you use WPA/WPA2 encryption, install:
 
 
 
# pacman -S wpa_supplicant wpa_actiond
 
 
 
If your wireless adapter requires a firmware (as described in the above [[#Wireless|Establish an internet connection]] section and also [[Wireless_Setup#Drivers_and_firmware|here]]), install the package containing your firmware. For example:
 
 
 
# pacman -S zd1211-firmware
 
 
 
* Connect to the network with {{ic|wifi-menu}} (optionally checking the interface name with {{ic|ip link}}, but usually it's {{ic|wlan0}}), which will generate a profile file in {{ic|/etc/network.d}} named after the SSID. There are also templates available in {{ic|/etc/network.d/examples/}} for manual configuration.
 
 
 
# wifi-menu
 
 
 
* Add {{ic|net-auto-wireless}} to the {{ic|DAEMONS}} array in {{ic|/etc/rc.conf}}, daemon which will connect to known networks and gracefully handle roaming and disconnects:
 
 
 
{{Note|[[Netcfg]] also provides {{ic|net-auto-wired}}, which can be used in conjunction with {{ic|net-auto-wireless}}.}}
 
 
 
{{hc|# nano /etc/rc.conf|2=
 
DAEMONS=(... net-auto-wireless ...)}}
 
 
 
* Make sure that the correct wireless interface (usually {{ic|wlan0}}) is set in {{ic|/etc/conf.d/netcfg}}:
 
 
 
{{hc|# nano /etc/conf.d/netcfg|2=
 
WIRELESS_INTERFACE="wlan0"}}
 
 
 
It is also possible to define a list of network profiles that should be automatically connected, using the {{ic|AUTO_PROFILES}} variable in {{ic|/etc/conf.d/netcfg}}. If {{ic|AUTO_PROFILES}} is not set, all known wireless networks will be tried.
 
 
 
==== xDSL (PPPoE), analog modem or ISDN ====
 
 
 
For xDSL, analog modem (dial-up) and ISDN, see [[Direct Modem Connection]].
 
 
 
=== Create an initial ramdisk environment ===
 
 
 
{{Tip|Most users can skip this step and use the defaults provided in {{ic|mkinitcpio.conf}}. The initramfs image (from the {{ic|/boot}} folder) has already been generated based on this file when the {{Pkg|linux}} package (the Linux kernel) was installed earlier with {{ic|pacstrap}}.}}
 
 
 
Here you need to set the right [[Mkinitcpio#HOOKS|hooks]] if the root is on a USB drive, if you use RAID, LVM, or if {{ic|/usr}} is on a separate partition.
 
 
 
Edit {{ic|/etc/mkinitcpio.conf}} as needed and re-generate the initramfs image with:
 
 
 
# mkinitcpio -p linux
 
 
 
=== Install and configure a bootloader ===
 
 
 
Install either Syslinux or GRUB. There is no need to install both. Syslinux is considered to be easier to understand and to configure because it has only one configuration file. In spite of GRUB's many configuration files ''(for which the recommended method is to re-generate the {{ic|grub.cfg}} file each time you change anything in one of those files)'', using GRUB could make it more comfortable to transition to BURG in the future, a much more [http://code.google.com/p/burg/wiki/Screenshots customizable] GRUB fork. Of course, Syslinux can also be customized. [https://bbs.archlinux.org/viewtopic.php?pid=1109328#p1109328 (*)]
 
 
 
==== Syslinux ====
 
 
 
{{Note|Syslinux does not yet support [[UEFI]].}}
 
 
 
Install the {{Pkg|syslinux}} package along with {{Pkg|gptfdisk}} (this package comes with {{ic|sgdisk}}, which will be used to set the ''legacy_boot'' flag on GPT-partitioned drives). Then use the {{ic|syslinux-install_update}} script to automatically ''install'' the files ({{ic|-i}}), mark the partition ''active'' by setting the boot flag ({{ic|-a}}), and install the ''MBR'' boot code ({{ic|-m}}):
 
 
 
# pacman -S syslinux <font color=grey>gptfdisk  #Install ''gptfdisk'' as well, if you have a GPT-partitioned drive.</font>
 
# syslinux-install_update -iam
 
 
 
Configure {{ic|syslinux.cfg}} to point to the right root partition. This step is vital. If it points to the wrong partition, Arch Linux will not boot. Change {{ic|/dev/sda3}} to reflect your root partition ''(if you partitioned your drive as we did in [[#Prepare_the_storage_drive|the example]], your root partition is sda1)''. Do the same for the fallback entry.
 
 
 
{{hc|# nano /boot/syslinux/syslinux.cfg|2=
 
...
 
LABEL arch
 
        ...
 
        APPEND root=/dev/sda3 ro
 
        ...}}
 
 
 
For more information on configuring and using Syslinux, see [[Syslinux]].
 
 
 
==== GRUB ====
 
 
 
* For BIOS motherboards:
 
 
 
{{Note|Please do not use something like {{ic|sda1}}. You want to install to the MBR, not to a partition (which is [[GRUB#Install_to_Partition_or_Partitionless_Disk|discouraged]]).}}
 
 
 
# pacman -S grub-bios
 
# grub-install --target=i386-pc --recheck /dev/sda
 
 
 
Create the {{ic|grub.cfg}} file:
 
 
 
{{Tip|To automatically search for other operating systems on your computer, install {{Pkg|os-prober}} before running the next command:
 
# pacman -S os-prober
 
}}
 
 
 
# grub-mkconfig -o /boot/grub/grub.cfg
 
 
 
* For UEFI motherboards:
 
 
 
{{Note|In rare cases you may need to use {{ic|grub-efi-i386}} instead; on older macs for instance, where Apple hardware uses some kind of mixture between UEFI v1.x and v2.x. In such cases, GRUB would only work with 32 bit modules, even though the CPU may be 64 bit.}}
 
 
 
{{Note|GRUB is not the only UEFI bootloader available. See [[UEFI Bootloaders]].}}
 
 
 
# pacman -S grub-efi-x86_64
 
# grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=arch_grub --recheck
 
 
 
Don't forget to generate a {{ic|grub.cfg}} as described above.
 
 
 
For more information on configuring and using GRUB, see [[GRUB]].
 
 
 
=== Set the root password ===
 
 
 
You can set the root password with:
 
 
 
# passwd
 
 
 
=== Unmount the partitions and reboot ===
 
 
 
Exit from the chroot environment:
 
 
 
# exit
 
 
 
Since the partitions are mounted under {{ic|/mnt}}, we use the following command to unmount them:
 
 
 
# umount /mnt/{boot,home,}
 
 
 
Reboot the computer:
 
 
 
# reboot
 
 
 
{{Tip|Be sure to remove the installation media, otherwise you will boot back into it.}}<noinclude>
 
{{Beginners' Guide navigation}}</noinclude>
 

Latest revision as of 11:34, 23 August 2016

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