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| [http://www.gentoo.org/proj/en/base/openrc/ OpenRC] is an init system maintained by the Gentoo developers.
| | {{Out of date|OpenRC is no longer supported --Frede H. 08:41, 25 September 2020 (CEST)}} |
| OpenRC is a dependency based init system that works with the system provided init program, normally sysvinit. It is not a replacement for sysvinit.
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| It can be used as an alternative to [http://www.freedesktop.org/wiki/Software/systemd/ systemd], for users that like more control over their system and do not want all the features that systemd provides and automatically activates.
| | __TOC__ |
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| == Installation == | | ==Unsupported on Manjaro== |
| | {{Important|Manjaro does no longer support OpenRC}} |
| | ==Replacement== |
| | {{Important|If you are looking for OpenRC capable Arch have a look at [https://artixlinux.org Artix Linux]}} |
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| OpenRC is currently available from the [https://aur.archlinux.org/packages/?O=0&K=openrc AUR], and from a binary repository curtsy Archbang and artoo. | | ==What is OpenRC== |
| | [https://wiki.gentoo.org/wiki/OpenRC OpenRC] is a dependency based [https://en.wikipedia.org/wiki/Init init] system maintained by the Gentoo developers, that works with the system provided init program, normally [http://savannah.nongnu.org/projects/sysvinit sysvinit]. It is not a replacement for sysvinit. |
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| To use the binary repos, add the following near the end of the ''/etc/pacman.conf'' file:
| | It is an alternative to [http://www.freedesktop.org/wiki/Software/systemd/ systemd] for users that like more control over their system, and do not want all the features that systemd provides and automatically activates. |
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| [openrc]
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| SigLevel = Optional TrustAll
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| Server = http://archbang.org/repos/$repo/$arch
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| [aur-nosystemd]
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| SigLevel = Optional TrustAll
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| Server = http://archbang.org/repos/$repo/$arch
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| And then do '''sudo pacman -Syu''' to synchronise the reposotories.
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| The main package to install is ''openrc-base''. It installs a binary init sysvinit (sysvinit), and the OpenRC base scripts and configuration.
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| To install the ''openrc-base'' package, use:
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| sudo pacman -S openrc-base
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| This package conflicts with ''systemd-sysvcompat'', which will be removed. The output looks like:
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| sudo pacman -S openrc-base
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| resolving dependencies...
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| looking for inter-conflicts...
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| :: openrc-base and systemd-sysvcompat are in conflict. Remove systemd-sysvcompat? [y/N] y
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| Packages (3): systemd-sysvcompat-212-3 [removal] sysvinit-2.88-15
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| openrc-base-0.12.4-12
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| Total Download Size: 0.24 MiB
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| Total Installed Size: 0.96 MiB
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| Net Upgrade Size: 0.95 MiB
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| :: Proceed with installation? [Y/n]
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| After installing the ''openrc-base'' package, OpenRC should boot by default instead of systemd. Note that it will boot to a command line, as the service for a graphical display manager has not yet been installed.
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| On installing the ''openrc-base'' package, you may get messages like:
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| run 'rc-update add cronie default'
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| run 'rc-update add dhcpcd default'
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| Running these commands adds the services to the specified runlevels. For example if you run:
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| sudo rc-update add cronie default
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| Then the cronie service would be added to the default runelevel and would automatically be started at boot.
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| === Additional packages ===
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| ==== Display Manager ====
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| To boot to a graphical display manager, install the '''openrc-displaymanager''' package, and edit the ''/etc/conf.d/xdm'' file to specify your display manager. For example, to use '''lightdm''', I changed the line
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| DISPLAYMANAGER="xdm"
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| DISPLAYMANAGER="lightdm"
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| ''Note:''
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| ''lightdm'' and a ''lightdm-greeter'' should be installed and configured to use lightdm as display manager.
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| An alternative to ''lightdm'' that I find simpler is [https://wiki.archlinux.org/index.php/LXDM LXDM]. However the version in the repos does not automatically start a ck-session on login; alternative [https://aur.archlinux.org/packages/lxdm-consolekit/ lxdm-consolekit] from the [[AUR]] can be used.
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| ==== Audio (ALSA) ====
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| The '''alsa-utils-openrc''' package can be installed. After installing it run:
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| sudo rc-update add alsasound default
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| to automatically start Alsa at boot.
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| ==== Network Manager ====
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| By default ''dhcpcd'' is installed. However if you use Wifi to connect, or need a graphical network applet, then '''networkmanager-openrc''' can be installed.
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| The ''networkmanager-openrc'' replaces the normal networkmanager package in the repos. Also, it requires ''consolekit'' and ''polkit-consolekit'', which replaces the normal polkit from the repos.
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| ==== Consolekit ====
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| You may also wish to install '''consolekit-openrc''', which supports multi-user setups, mounting of partitions by unauthorised users, etc. See the [https://wiki.gentoo.org/wiki/ConsoleKit Gentoo-Wiki] for more details.
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| Only caveat of installing consolekit is that it requires ''polkit-consolekit'', which conflicts with the normal polkit; so if you boot to systemd you wont be able to mount partitions if you are not in the storage group.
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| However using the command line, or as root user, one can mount any partition or perform most functions that are made available to the normal user via polkit. See the [https://wiki.archlinux.org/index.php/Polkit Arch-wiki] for more details.
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| ==== Others ====
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| For acpi support '''acpid-openrc''' can be installed and enabled.
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| For running the ''ps'' command, the '''procps-ng-nosystemd''' package can be installed.
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| To suspend and hibernate via the command line, '''pm-utils''' can be installed. You may also need the '''upower-nosystemd-pm-utils''' package if suspend and hibernate does not work. Also see the [[Using_OpenRC,_an_alternative_to_systemd#Troubleshooting | troubleshooting]] section for enabling swap.
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| == Troubleshooting ==
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| When booting, you may get errors like:
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| tmpfiles: ignoring invalid entry on line 32 of `/usr/lib/tmpfiles.d//legacy.conf'
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| tmpfiles: ignoring invalid entry on line 33 of `/usr/lib/tmpfiles.d//legacy.conf'
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| tmpfiles: ignoring invalid entry on line 34 of `/usr/lib/tmpfiles.d//legacy.conf'
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| tmpfiles: ignoring invalid entry on line 11 of `/usr/lib/tmpfiles.d//systemd-nologin.conf'
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| tmpfiles: ignoring invalid entry on line 18 of `/usr/lib/tmpfiles.d//x11.conf'
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| To correct, I removed the lines referenced in the above files. These errors have been fixed by the developers on [https://github.com/OpenRC/openrc/issues/17 github], and should be available in the next release.
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| The boot logs for OpenRC are stored in ''/var/log/rc.log''
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| If you were using systemd on a '''GPT''' partitioned hard disk, then you may need to enable swap via ''/etc/fstab''. This is so because systemd handled swap automatically on GPT partitions, and gave error if it was mounted via fstab.
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| I added the following entry to my ''/etc/fstab''
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| # /dev/sda10
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| UUID=0c3e9434-bc5c-461c-a5e4-4e9fe5f9a149 swap swap sw 0 0
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| Also, systemd used to set a ''tmpfs'' by default; to set it manually via ''/etc/fstab'', I added the following lines:
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| tmpfs /tmp tmpfs nodev,nosuid 0 0
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| See the [https://wiki.archlinux.org/index.php/Fstab#tmpfs Arch Wiki] for more details.
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| == Further Reading == | | == Further Reading == |
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| [https://wiki.archlinux.org/index.php/Openrc The Arch Wiki] | | * [https://wiki.archlinux.org/index.php/Openrc The Arch Wiki] |
| | | * [http://blog.notfoss.com/posts/openrc-on-arch-linux/ OpenRC on Arch Linux] |
| [http://blog.notfoss.com/posts/openrc-on-arch-linux/ OpenRC on Arch Linux] | | * [http://systemd-free.org/ systemd-free.org] |
| | | * [https://wiki.gentoo.org/wiki/Handbook:X86/Working/Initscripts Initscripts] |
| [http://abchk1234.wordpress.com/2014/06/03/using-openrc-on-arch-archbang-manjaro-linux/ Using OpenRC on Arch / Archbang / Manjaro Linux] | | * [https://wiki.gentoo.org/wiki//etc/local.d /etc/local.d] |
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| == Support ==
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| Following is a link to this page's forum counterpart where you can post any related feedback: [https://forum.manjaro.org/index.php?topic=14080.0]
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| [[Category:Contents Page]] | | [[Category:Obsolete]] |
