nixpkgs/nixos/doc/manual/installation/installing-usb.xml
davidak 3270aa896b replace "Mac OS X" and "OS X" with "macOS"
as it is the official name since 2016

https://en.wikipedia.org/wiki/Macintosh_operating_systems#Desktop

exception are parts refering to older versions of macOS like

"GUI support for Mac OS X 10.6 - 10.12. Note that Emacs 23 and later [...]"
2017-08-07 21:41:30 +02:00

46 lines
2.1 KiB
XML

<section xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xi="http://www.w3.org/2001/XInclude"
version="5.0"
xml:id="sec-booting-from-usb">
<title>Booting from a USB Drive</title>
<para>For systems without CD drive, the NixOS live CD can be booted from
a USB stick. You can use the <command>dd</command> utility to write the image:
<command>dd if=<replaceable>path-to-image</replaceable>
of=<replaceable>/dev/sdb</replaceable></command>. Be careful about specifying the
correct drive; you can use the <command>lsblk</command> command to get a list of
block devices. If you're on macOS you can run <command>diskutil list</command>
to see the list of devices; the device you'll use for the USB must be ejected
before writing the image.</para>
<para>The <command>dd</command> utility will write the image verbatim to the drive,
making it the recommended option for both UEFI and non-UEFI installations. For
non-UEFI installations, you can alternatively use
<link xlink:href="http://unetbootin.sourceforge.net/">unetbootin</link>. If you
cannot use <command>dd</command> for a UEFI installation, you can also mount the
ISO, copy its contents verbatim to your drive, then either:
<itemizedlist>
<listitem>
<para>Change the label of the disk partition to the label of the ISO
(visible with the blkid command), or</para>
</listitem>
<listitem>
<para>Edit <filename>loader/entries/nixos-livecd.conf</filename> on the drive
and change the <literal>root=</literal> field in the <literal>options</literal>
line to point to your drive (see the documentation on <literal>root=</literal>
in <link xlink:href="https://www.kernel.org/doc/Documentation/kernel-parameters.txt">
the kernel documentation</link> for more details).</para>
</listitem>
<listitem>
<para>If you want to load the contents of the ISO to ram after bootin
(So you can remove the stick after bootup) you can append the parameter
<literal>copytoram</literal>to the <literal>options</literal> field.</para>
</listitem>
</itemizedlist>
</para>
</section>