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dev-manual: Applied review edits to section on hostname changing 

Edits to the "Customizing an Image Hostname" section from Ross.
Updated the last paragraph to not imply incorrect information.

Fixes [YOCTO #7417]

(From yocto-docs rev: 8997be297077ee0052a5afbe50b9864cdef14058)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark 2015-03-20 15:25:31 -07:00 committed by Richard Purdie
parent 12c7efe40a
commit 4783ead254
1 changed files with 13 additions and 11 deletions
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24
documentation/dev-manual/dev-manual-common-tasks.xml
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@ -1175,7 +1175,7 @@
<title>Customizing an Image Hostname</title> <title>Customizing an Image Hostname</title>
<para> <para>
By default the configured hostname (i.e. By default, the configured hostname (i.e.
<filename>/etc/hostname</filename>) in an image is the <filename>/etc/hostname</filename>) in an image is the
same as the machine name. same as the machine name.
For example, if For example, if
@ -1186,12 +1186,9 @@
<para> <para>
You can customize this name by altering the value of the You can customize this name by altering the value of the
"hostname" variable in the base-files recipe using either "hostname" variable in the
<filename>base-files</filename> recipe using either
an append file or a configuration file. an append file or a configuration file.
<note>
Setting the variable to "" causes no hostname to be
written to <filename>/etc/hostname</filename>.
</note>
Use the following in an append file: Use the following in an append file:
<literallayout class='monospaced'> <literallayout class='monospaced'>
hostname="myhostname" hostname="myhostname"
@ -1218,11 +1215,16 @@
</para> </para>
<para> <para>
Another point of interest is that if you leave the variable Another point of interest is that if you unset the variable,
"hostname" unset, the image will have no default hostname the image will have no default hostname in the filesystem.
in the filesystem. Here is an example that unsets the variable in a
This condition is suitable for environments that use configuration file:
dynamic hostnames such as virtual machines. <literallayout class='monospaced'>
hostname_pn-base-files = ""
</literallayout>
Having no default hostname in the filesystem is suitable for
environments that use dynamic hostnames such as virtual
machines.
</para> </para>
</section> </section>
</section> </section>