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The current behaviour modifies the first writeable file from amongst .bash_profile, .bash_login and .profile. So .bash_profile (if it is writable) would be modified even if a user has already sourced nix.sh in, say, .profile. This commit introduces a new environment variable, NIX_INSTALLER_NO_MODIFY_PROFILE. If this is set during installation, then the modifications are unconditionally skipped. This is useful for users who have a manually curated set of dotfiles that they are porting to a new machine. In such scenarios, nix.sh is already sourced at a place where the user prefers. Without this change, the nix installer would insist on modifying .bash_profile if it exists. This commit also add documentations for both the current behaviour and the new override.
100 lines
2.9 KiB
XML
100 lines
2.9 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="ch-installing-binary">
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<title>Installing a Binary Distribution</title>
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<para>If you are using Linux or Mac OS X, the easiest way to install
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Nix is to run the following command:
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<screen>
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$ bash <(curl https://nixos.org/nix/install)
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</screen>
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This will perform a single-user installation of Nix, meaning that
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<filename>/nix</filename> is owned by the invoking user. You should
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run this under your usual user account, <emphasis>not</emphasis> as
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root. The script will invoke <command>sudo</command> to create
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<filename>/nix</filename> if it doesn’t already exist. If you don’t
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have <command>sudo</command>, you should manually create
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<command>/nix</command> first as root, e.g.:
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<screen>
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$ mkdir /nix
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$ chown alice /nix
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</screen>
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The install script will modify the first writable file from amongst
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<filename>.bash_profile</filename>, <filename>.bash_login</filename>
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and <filename>.profile</filename> to source
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<filename>~/.nix-profile/etc/profile.d/nix.sh</filename>. You can set
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the <command>NIX_INSTALLER_NO_MODIFY_PROFILE</command> environment
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variable before executing the install script to disable this
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behaviour.
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</para>
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<!--
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<para>You can also manually download and install a binary package.
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Binary packages of the latest stable release are available for Fedora,
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Debian, Ubuntu, Mac OS X and various other systems from the <link
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xlink:href="http://nixos.org/nix/download.html">Nix homepage</link>.
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You can also get builds of the latest development release from our
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<link
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xlink:href="http://hydra.nixos.org/job/nix/master/release/latest-finished#tabs-constituents">continuous
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build system</link>.</para>
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<para>For Fedora, RPM packages are available. These can be installed
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or upgraded using <command>rpm -U</command>. For example,
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<screen>
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$ rpm -U nix-1.8-1.i386.rpm</screen>
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</para>
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<para>For Debian and Ubuntu, you can download a Deb package and
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install it like this:
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<screen>
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$ dpkg -i nix_1.8-1_amd64.deb</screen>
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</para>
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-->
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<para>You can also download a binary tarball that contains Nix and all
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its dependencies. (This is what the install script at
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<uri>https://nixos.org/nix/install</uri> does automatically.) You
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should unpack it somewhere (e.g. in <filename>/tmp</filename>), and
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then run the script named <command>install</command> inside the binary
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tarball:
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<screen>
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alice$ cd /tmp
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alice$ tar xfj nix-1.8-x86_64-darwin.tar.bz2
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alice$ cd nix-1.8-x86_64-darwin
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alice$ ./install
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</screen>
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</para>
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<para>Nix can be uninstalled using <command>rpm -e nix</command> or
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<command>dpkg -r nix</command> on RPM- and Dpkg-based systems,
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respectively. After this you should manually remove the Nix store and
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other auxiliary data, if desired:
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<screen>
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$ rm -rf /nix</screen>
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</para>
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<para>You can uninstall Nix simply by running:
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<screen>
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$ rm -rf /nix
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</screen>
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</para>
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</chapter>
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