Manual: Remove old cruft
This commit is contained in:
Eelco Dolstra
parent
478e3e4649
commit
f8e8dd827e
|
|
@ -1,34 +0,0 @@
|
|||
<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-debug-build">
|
||||
|
||||
<title>Debugging Build Failures</title>
|
||||
|
||||
<para>At the beginning of each phase of the build (such as unpacking,
|
||||
building or installing), the set of all shell variables is written to
|
||||
the file <filename>env-vars</filename> at the top-level build
|
||||
directory. This is useful for debugging: it allows you to recreate
|
||||
the environment in which a build was performed. For instance, if a
|
||||
build fails, then assuming you used the <option>-K</option> flag, you
|
||||
can go to the output directory and <quote>switch</quote> to the
|
||||
environment of the builder:
|
||||
|
||||
<screen>
|
||||
$ nix-build -K ./foo.nix
|
||||
... fails, keeping build directory `/tmp/nix-1234-0'
|
||||
|
||||
$ cd /tmp/nix-1234-0
|
||||
|
||||
$ source env-vars
|
||||
|
||||
<lineannotation>(edit some files...)</lineannotation>
|
||||
|
||||
$ make
|
||||
|
||||
<lineannotation>(execution continues with the same GCC, make, etc.)</lineannotation></screen>
|
||||
|
||||
</para>
|
||||
|
||||
</section>
|
||||
|
|
@ -81,6 +81,4 @@ Just pass the option <link linkend='opt-max-jobs'><option>-j
|
|||
in parallel, or set. Typically this should be the number of
|
||||
CPUs.</para>
|
||||
|
||||
<xi:include href="debug-build.xml" />
|
||||
|
||||
</section>
|
||||
|
|
|
|||
|
|
@ -79,16 +79,6 @@ alice$ ./install
|
|||
|
||||
</para>
|
||||
|
||||
<para>Nix can be uninstalled using <command>rpm -e nix</command> or
|
||||
<command>dpkg -r nix</command> on RPM- and Dpkg-based systems,
|
||||
respectively. After this you should manually remove the Nix store and
|
||||
other auxiliary data, if desired:
|
||||
|
||||
<screen>
|
||||
$ rm -rf /nix</screen>
|
||||
|
||||
</para>
|
||||
|
||||
<para>You can uninstall Nix simply by running:
|
||||
|
||||
<screen>
|
||||
|
|
|
|||
|
|
@ -33,7 +33,4 @@
|
|||
|
||||
</para>
|
||||
|
||||
<para>Nix is fairly portable, so it should work on most platforms that
|
||||
support POSIX threads and have a C++11 compiler.</para>
|
||||
|
||||
</chapter>
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@ to subsequent chapters.</para>
|
|||
<step><para>Install single-user Nix by running the following:
|
||||
|
||||
<screen>
|
||||
$ curl https://nixos.org/nix/install | sh
|
||||
$ bash <(curl https://nixos.org/nix/install)
|
||||
</screen>
|
||||
|
||||
This will install Nix in <filename>/nix</filename>. The install script
|
||||
|
|
|
|||
|
|
@ -12,14 +12,11 @@
|
|||
<firstname>Eelco</firstname>
|
||||
<surname>Dolstra</surname>
|
||||
</personname>
|
||||
<affiliation>
|
||||
<orgname>LogicBlox</orgname>
|
||||
</affiliation>
|
||||
<contrib>Author</contrib>
|
||||
</author>
|
||||
|
||||
<copyright>
|
||||
<year>2004-2014</year>
|
||||
<year>2004-2017</year>
|
||||
<holder>Eelco Dolstra</holder>
|
||||
</copyright>
|
||||
|
||||
|
|
@ -41,7 +38,6 @@
|
|||
<xi:include href="expressions/writing-nix-expressions.xml" />
|
||||
<xi:include href="advanced-topics/advanced-topics.xml" />
|
||||
<xi:include href="command-ref/command-ref.xml" />
|
||||
<xi:include href="troubleshooting/troubleshooting.xml" />
|
||||
<xi:include href="glossary/glossary.xml" />
|
||||
<xi:include href="hacking.xml" />
|
||||
<xi:include href="release-notes/release-notes.xml" />
|
||||
|
|
|
|||
|
|
@ -1,38 +0,0 @@
|
|||
<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-collisions-nixenv">
|
||||
|
||||
<title>Collisions in <command>nix-env</command></title>
|
||||
|
||||
<para>Symptom: when installing or upgrading, you get an error message such as
|
||||
|
||||
<screen>
|
||||
$ nix-env -i docbook-xml
|
||||
...
|
||||
adding /nix/store/s5hyxgm62gk2...-docbook-xml-4.2
|
||||
collision between `/nix/store/s5hyxgm62gk2...-docbook-xml-4.2/xml/dtd/docbook/calstblx.dtd'
|
||||
and `/nix/store/06h377hr4b33...-docbook-xml-4.3/xml/dtd/docbook/calstblx.dtd'
|
||||
at /nix/store/...-builder.pl line 62.</screen>
|
||||
|
||||
</para>
|
||||
|
||||
<para>The cause is that two installed packages in the user environment
|
||||
have overlapping filenames (e.g.,
|
||||
<filename>xml/dtd/docbook/calstblx.dtd</filename>. This usually
|
||||
happens when you accidentally try to install two versions of the same
|
||||
package. For instance, in the example above, the Nix Packages
|
||||
collection contains two versions of <literal>docbook-xml</literal>, so
|
||||
<command>nix-env -i</command> will try to install both. The default
|
||||
user environment builder has no way to way to resolve such conflicts,
|
||||
so it just gives up.</para>
|
||||
|
||||
<para>Solution: remove one of the offending packages from the user
|
||||
environment (if already installed) using <command>nix-env
|
||||
-e</command>, or specify exactly which version should be installed
|
||||
(e.g., <literal>nix-env -i docbook-xml-4.2</literal>).</para>
|
||||
|
||||
<!-- FIXME: describe priorities -->
|
||||
|
||||
</section>
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
<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-links-nix-store">
|
||||
|
||||
<title><quote>Too many links</quote> Error in the Nix store</title>
|
||||
|
||||
|
||||
<para>Symptom: when building something, you get an error message such as
|
||||
|
||||
<screen>
|
||||
...
|
||||
<literal>mkdir: cannot create directory `/nix/store/<replaceable>name</replaceable>': Too many links</literal></screen>
|
||||
|
||||
</para>
|
||||
|
||||
<para>This is usually because you have more than 32,000 subdirectories
|
||||
in <filename>/nix/store</filename>, as can be seen using <command>ls
|
||||
-l</command>:
|
||||
|
||||
<screen>
|
||||
$ ls -ld /nix/store
|
||||
drwxrwxrwt 32000 nix nix 4620288 Sep 8 15:08 store</screen>
|
||||
|
||||
The <literal>ext2</literal> file system is limited to an inode link
|
||||
count of 32,000 (each subdirectory increasing the count by one).
|
||||
Furthermore, the <literal>st_nlink</literal> field of the
|
||||
<function>stat</function> system call is a 16-bit value.</para>
|
||||
|
||||
<para>This only happens on very large Nix installations (such as build
|
||||
machines).</para>
|
||||
|
||||
<para>Quick solution: run the garbage collector. You may want to use
|
||||
the <option>--max-links</option> option.</para>
|
||||
|
||||
<para>Real solution: put the Nix store on a file system that supports
|
||||
more than 32,000 subdirectories per directory, such as ext4. (This
|
||||
doesn’t solve the <literal>st_nlink</literal> limit, but ext4 lies to
|
||||
the kernel by reporting a link count of 1 if it exceeds the
|
||||
limit.)</para>
|
||||
|
||||
</section>
|
||||
|
|
@ -1,16 +0,0 @@
|
|||
<appendix 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="ch-troubleshooting">
|
||||
|
||||
<title>Troubleshooting</title>
|
||||
|
||||
<para>This section provides solutions for some common problems. See
|
||||
the <link xlink:href="https://github.com/NixOS/nix/issues">Nix bug
|
||||
tracker</link> for a list of currently known issues.</para>
|
||||
|
||||
<xi:include href="collisions-nixenv.xml" />
|
||||
<xi:include href="links-nix-store.xml" />
|
||||
|
||||
</appendix>
|
||||
Loading…
Reference in a new issue