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