
<h1>How to report a bug in Debian using reportbug</h1>

<a name="reportbug"></a>
<p>We strongly recommend that you report bugs in Debian using the
<code><a
href="https://packages.debian.org/stable/utils/reportbug">reportbug</a></code>
program.</p>

<p>
reportbug is installed by default on most systems.
If it is not available, it can be installed using the
package management tool available on your system.
</p>

<p>
reportbug can be started from the system section of the menu or
by running <code>reportbug</code> via the command-line.
</p>

<p>It will guide you through the bug reporting process step by step.</p>

<p>If you have questions that the interactive prompts of reportbug do
not resolve, you can refer to the rest of the documentation below or ask the <a
href="mailto:debian-user@lists.debian.org"> Debian user mailing
list</a>.</p>


<h1> How to report a bug in Debian using email
  (and advanced usage of reportbug)</h1>

<h2>Important things to note <strong>before</strong> sending your bug
report</h2>

<a name="whatpackage"></a>
<h3>What package does your bug report belong to?</h3>
<p>You need to know what package your bug report should be filed
against. See <a href="#findpkgver">this example</a> for
information on how to find this information. (You will use this
information to <a href="#filedalready">see if your bug report
has been filed already.</a>)
</p>

<p>If you are unable to determine which package your bug report should
be filed against,
please send e-mail to the <a href="mailto:debian-user@lists.debian.org">
Debian user mailing list</a> asking for advice.</p>

<p>If your problem doesn't
relate just to one package but some general Debian service, there are
several <a href="pseudo-packages">pseudo-packages</a> or even
<a href="../MailingLists/">mailing lists</a> that you can use
to relay your message to us instead.</p>

<a name="filedalready"></a>
<h3>Has your bug report been filed already?</h3>
<p>You should check to see if your bug report has already been filed 
before submitting it. You can see which bugs have been filed in
a specific package using the
<a href="./#pkgreport">package option of the bug search form</a>.
If there is an existing bug report #<var>&lt;number&gt;</var>,
you should submit your comments by sending e-mail to
<var>&lt;number&gt;</var>@bugs.debian.org instead of reporting a
new bug.</p>

<h3>Send multiple reports for multiple bugs</h3>
<p>Please don't report multiple unrelated bugs &mdash; especially ones in
different packages &mdash; in a single bug report.</p>

<h3>Don't file bugs upstream</h3>
<p>If you file a bug in Debian, don't send a copy to the upstream software
maintainers yourself, as it is possible that the bug exists only in
Debian. If necessary, the maintainer of the package will forward the
bug upstream.</p>

<h2>Sending the bug report via e-mail</h2>

<p>You can report bugs in Debian by sending an e-mail to
<a href="mailto:submit@bugs.debian.org"><code>submit@bugs.debian.org</code></a>
with a special format described below. <code>reportbug</code> (<a
href="#reportbug">see above</a>) will properly format the e-mails for you;
please use it!</p>

<h3>Headers</h3>
<p>Like any e-mail you should include a clear, descriptive
<code>Subject</code> line in your main mail header.  The subject you
give will be used as the initial bug title in the tracking system, so
please try to make it informative!</p>

<p>If you'd like to send a copy of your bug report to additional recipients
(such as mailing lists), you shouldn't use the usual e-mail headers, but
<a href="#xcc">a different method, described below</a>.</p>

<h3><a name="pseudoheader">Pseudo-headers</a></h3>
<p>The first part of the bug report are the pseudo-headers which contain
information about what package and version your bug report applies to.
The first line of the message body has to include a pseudo-header.
It should say:</p>

<pre>
Package: &lt;packagename&gt;
</pre>

<p>Replace <code>&lt;packagename&gt;</code> with the <a href="#whatpackage">name of the package</a> which
has the bug.</p>

<p>The second line of the message should say:</p>

<pre>
Version: &lt;packageversion&gt;
</pre>

<p>Replace <code>&lt;packageversion&gt;</code> with the version of the package.
Please don't include any text here other than the version itself, as the
bug tracking system relies on this field to work out which releases are
affected by the bug.</p>

<p>You need to supply a correct <code>Package</code> line in the
pseudo-header in order for the bug tracking system to deliver the message
to the package's maintainer. See <a href="#findpkgver">this example</a> for
information on how to find this information.</p>

<p>For other valid pseudo-headers, see <a
href="#additionalpseudoheaders">Additional pseudo-headers</a></p>

<h3>The body of the report</h3>
<p>Please include in your report:</p>

<ul>
<li>The <em>exact</em> and <em>complete</em> text of any error
messages printed or logged.  This is very important!</li>
<li>Exactly what you typed or did to demonstrate the problem.</li>
<li>A description of the incorrect behavior: exactly what behavior
you were expecting, and what you observed.  A transcript of an
example session is a good way of showing this.</li>
<li>A suggested fix, or even a patch, if you have one.</li>
<li>Details of the configuration of the program with the problem.
Include the complete text of its configuration files.</li>
<li>The versions of any packages on which the buggy package depends.</li>
<li>What kernel version you're using (type <code>uname -a</code>), your
shared C library (type <code>ls -l /lib/*/libc.so.6</code> or
<code>apt show libc6 | grep ^Version</code>), and any other details about
your Debian system, if it seems appropriate.  For example, if you had a
problem with a Perl script, you would want to provide the version of the
`perl' binary (type <code>perl -v</code> or <code>dpkg -s perl | grep
^Version:</code>).</li>
<li>Appropriate details of the hardware in your system.  If you're
reporting a problem with a device driver please list <em>all</em> the
hardware in your system, as problems are often caused by IRQ and I/O
address conflicts.</li>
<li>If you have <a
href="https://packages.debian.org/stable/utils/reportbug">reportbug</a>
 installed the output of
 <code>reportbug --template -T none -s none -S normal -b --list-cc
 none -q &lt;package&gt;</code>
will also be useful, as it contains the output of maintainer specific
scripts and version information.</li>
</ul>

<p>Include any detail that seems relevant &mdash; you are in very little danger
of making your report too long by including too much information.  If
they are small, please include in your report any files you were using
to reproduce the problem. (If they are large, consider making them
available on a publicly available website if possible.)</p>

<p>For more advice on how to help the developers solve your problem,
please read <a href="https://www.chiark.greenend.org.uk/~sgtatham/bugs.html">
How to Report Bugs Effectively</a>.</p>


<h2><a name="example">An Example Bug Report</a></h2>

<p>A bug report with header and pseudo-header looks something like this:</p>

<pre>
  To: submit@bugs.debian.org
  From: diligent@testing.linux.org
  Subject: Hello says `goodbye'

  Package: hello
  Version: 1.3-16

  When I invoke `hello' without arguments from an ordinary shell
  prompt it prints `goodbye', rather than the expected `hello, world'.
  Here is a transcript:

  $ hello
  goodbye
  $ /usr/bin/hello
  goodbye
  $

  I suggest that the output string, in hello.c, be corrected.

  I am using Debian GNU/Linux 2.2, kernel 2.2.17-pre-patch-13
  and libc6 2.1.3-10.
</pre>


<h2><a name="xcc">Sending copies of bug reports to other addresses</a></h2>

<p>Sometimes it is necessary to send a copy of a bug report to somewhere
else besides <code>debian-bugs-dist</code> and the package maintainer,
which is where they are normally sent.</p>

<p>You could do this by CC'ing your bug report to the other address(es),
but then the other copies would not have the bug report number put in
the <code>Reply-To</code> field and the <code>Subject</code> line.
When the recipients reply they will probably preserve the
<code>submit@bugs.debian.org</code> entry in the header and have their
message filed as a new bug report.  This leads to many duplicated
reports.</p>

<p>The <em>right</em> way to do this is to use the
<code>X-Debbugs-CC</code> header.  Add a line like this to your
message's mail header:</p>
<pre>
 X-Debbugs-CC: other-list@cosmic.edu
</pre>
<p>This will cause the bug tracking system to send a copy of your report
to the address(es) in the <code>X-Debbugs-CC</code> line as well as to
<code>debian-bugs-dist</code>.</p>

<p>If you want to send copies to more than one address, add them
comma-separated in only one <code>X-Debbugs-CC</code> line.</p>

<p>Avoid sending such copies to the addresses of other bug reports, as
they will be caught by the checks that prevent mail loops. There is
relatively little point in using <code>X-Debbugs-CC</code> for this
anyway, as the bug number added by that mechanism will just be replaced
by a new one; use an ordinary <code>CC</code> header instead.</p>

<p>This feature can often be combined usefully with mailing
<code>quiet</code> &mdash; see below.</p>

<a name="additionalpseudoheaders"></a>
<h1>Additional Pseudoheaders</h1>

<h2><a name="severities">Severity levels</a></h2>

<p>If a report is of a particularly serious bug, or is merely a feature
request, you can set the severity level of the bug as you report
it.  This is not required however, and the package maintainer will assign an
appropriate severity level to your report even if you do not (or pick
the wrong severity).</p>

<p>To assign a severity level, put a line like this one in the
<a href="#pseudoheader">pseudo-header</a>:</p>

<pre>
Severity: &lt;<var>severity</var>&gt;
</pre>

<p>Replace &lt;<var>severity</var>&gt; with one of the available severity
levels, as described in the
<a href="Developer#severities">advanced documentation</a>.</p>

<h2><a name="tags">Assigning tags</a></h2>

<p>You can set tags on a bug as you are reporting it. For example, if
you are including a patch with your bug report, you may wish to set the
<code>patch</code> tag. This is not required, however, and the developers
will set tags on your report as and when it is appropriate.</p>

<p>To set tags, put a line like this one in the
<a href="#pseudoheader">pseudo-header</a>:</p>

<pre>
Tags: &lt;<var>tags</var>&gt;
</pre>

<p>Replace &lt;<var>tags</var>&gt; with one or more of the available tags,
as described in the
<a href="Developer#tags">advanced documentation</a>.
Separate multiple tags with commas, spaces, or both.</p>

<pre>
User: &lt;<var>username</var>&gt;
Usertags: &lt;<var>usertags</var>&gt;
</pre>

<p>Replace &lt;<var>usertags</var>&gt; with one or more usertags.
Separate multiple tags with commas, spaces, or both. If you specify a
&lt;<var>username</var>&gt;, that user's tags will be set. Otherwise,
the e-mail address of the sender will be used as the username.</p>

<p>You can set usertags for multiple users at bug submission time by
including multiple User pseudo-headers; each Usertags pseudo-header
sets the usertags for the preceding User pseudo-header. This is especially
useful for setting usertags for a team with multiple users, setting
usertags for multiple teams, or setting the
<a href="https://wiki.debian.org/Teams/Debbugs/ArchitectureTags">architecture usertags</a>
for bugs affecting multiple architectures.
</p>

<pre>
User: &lt;<var>first-username</var>&gt;
Usertags: &lt;<var>first-username usertags</var>&gt;
User: &lt;<var>second-username</var>&gt;
Usertags: &lt;<var>second-username usertags</var>&gt;
</pre>

<h2>Setting Forwarded</h2>
<pre>
Forwarded: <var>foo@example.com</var>
</pre>

<p>
will mark the newly submitted bug as forwarded to foo@example.com. See
<a href="Developer#forward">Recording that you have passed on a bug
report</a> in the developers' documentation for details.
</p>

<h2>Claiming ownership</h2>
<pre>
Owner: <var>foo@example.com</var>
</pre>

<p>
will indicate that foo@example.com is now responsible for fixing this
bug. See <a href="Developer#owner">Changing bug ownership</a> in the
developers' documentation for details.
</p>

<h2>Source Package</h2>
<pre>
Source: <var>foopackage</var>
</pre>

<p>
the equivalent of <code>Package:</code> for bugs present in the source
package of foopackage; for most bugs in most packages you don't want
to use this option.
</p>

<h2><a name="control">Control Commands</a></h2>
<pre>
Control: <var>control commands</var>
</pre>

<p>
Allows for any of the commands which must be sent to
<code>control@bugs.debian.org</code> to work when sent to <code>submit@bugs.debian.org</code> or
<code>nnn@bugs.debian.org</code>. -1 initially refers to the current
    bug (that is, the bug created by a mail to submit@ or the bug
    messaged with nnn@). Please see <a href="server-control">the
    server control documentation</a> for more information on the
    control commands which are valid.</p>

<p>For example, the following pseudoheader in a message  sent
  to <code>12345@bugs.debian.org</code>:</p>

<pre>
Control: retitle -1 this is the title
Control: severity -1 normal
Control: summary -1 0
Control: forwarded -1 https://bugs.debian.org/nnn
</pre>

<p>would cause 12345 to be retitled, its severity changed, summary set,
and marked as forwarded.</p>



<h2>X-Debbugs- headers</h2>
<p>Finally, if your
<acronym title="Mail User Agent" lang="en">MUA</acronym>
doesn't allow you to edit the headers, you can
set the various <code>X-Debbugs-</code> headers in the
<a href="#pseudoheader">pseudo-headers</a>.</p>


<h1>Additional information</h1>

<h2>Different submission addresses (minor or mass bug reports)</h2>

<p>If a bug report is minor, for example, a documentation typo or a trivial
build problem, please adjust the severity appropriately and send it to
<code>maintonly@bugs.debian.org</code> instead of <code>submit@bugs.debian.org</code>.
<code>maintonly</code> will forward the report to the package maintainer
only, it won't forward it to the BTS mailing lists.</p>

<p>If you're submitting many reports at once, you should definitely use
<code>maintonly@bugs.debian.org</code> so that you don't cause too much redundant
traffic on the BTS mailing lists. Before submitting many similar bugs you
may also want to post a summary on <code>debian-bugs-dist</code>.</p>

<p>If wish to report a bug to the bug tracking system that's already been
sent to the maintainer, you can use <code>quiet@bugs.debian.org</code>. Bugs sent to
<code>quiet@bugs.debian.org</code> will not be forwarded anywhere, only filed.</p>

<p>When you use different submission addresses, the bug tracking system will
set the <code>Reply-To</code> of any forwarded message so that the replies
will by default be processed in the same way as the original report. That
means that, for example, replies to <code>maintonly</code> will go to
<var>nnn</var><code>-maintonly@bugs.debian.org</code> instead of
<var>nnn</var><code>@bugs.debian.org</code>, unless of course one overrides this
manually.</p>


<h2>Acknowledgements</h2>

<p>Normally, the bug tracking system will return an acknowledgement to you
by e-mail when you report a new bug or submit additional information to an
existing bug. If you want to suppress this acknowledgement, include an
<code>X-Debbugs-No-Ack</code> header or pseudoheader in your e-mail
(the contents of this header do not matter). If you report a new bug
with this header, you will need to check the web interface yourself to
find the bug number.</p>

<p>Note that this header will not suppress acknowledgements from the
<code>control@bugs.debian.org</code> mailserver, since those acknowledgements may
contain error messages which should be read and acted upon.</p>

<h2>Spamfighting and missing mail</h2>

<p>The bug tracking system implements a rather extensive set of rules
  designed to make sure that spam does not make it through the BTS.
  While we try to minimize the number of false positives, they do
  occur. If you suspect your mail has triggered a false positive, feel
  free to contact <code>owner@bugs.debian.org</code> for assistance.
  Another common cause of mail not making it through to the BTS is
  utilizing addresses which match procmail's FROM_DAEMON, which
  includes mail from addresses like <code>mail@foobar.com</code>. If
  you suspect your mail matches FROM_DAEMON,
  see <a href="https://manpages.debian.org/cgi-bin/man.cgi?query=procmailrc">procmailrc(5)</a>
  to verify, and then resend the mail using an address which does not
  match FROM_DAEMON.</p>


<h2>Bug reports against unknown packages</h2>

<p>If the bug tracking system doesn't know who the maintainer of the
relevant package is it will forward the report to
<code>debian-bugs-dist</code> even if <code>maintonly</code> was used.</p>

<p>When sending to <code>maintonly@bugs.debian.org</code> or
<var>nnn</var><code>-maintonly@bugs.debian.org</code> you should make sure that
the bug report is assigned to the right package, by putting a correct
<code>Package</code> at the top of an original submission of a report,
or by using <A href="server-control">the
<code>control@bugs.debian.org</code> service</A> to (re)assign the report
appropriately.</p>


<h2><a name="findpkgver">Using <code>dpkg</code> to find the package and
version for the report</a></h2>

<p>When using <code>reportbug</code> to report a bug in a command, say
<code>grep</code>, the following will automatically select the right package
and let you write the report right away: <code>reportbug --file $(which
grep)</code></p>

<p>You can also find out which package installed it by using <code>dpkg
--search</code>. You can find out which version of a package you have
installed by using <code>dpkg --list</code> or <code>dpkg --status</code>.
</p>

<p>For example:</p>
<pre>
$ which apt-get
/usr/bin/apt-get
$ type apt-get
apt-get is /usr/bin/apt-get
$ dpkg --search /usr/bin/apt-get
apt: /usr/bin/apt-get
$ dpkg --list apt
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  apt            0.3.19         Advanced front-end for dpkg
$ dpkg --status apt
Package: apt
Status: install ok installed
Priority: standard
Section: base
Installed-Size: 1391
Maintainer: APT Development Team &lt;deity@lists.debian.org&gt;
Version: 0.3.19
Replaces: deity, libapt-pkg-doc (&lt;&lt; 0.3.7), libapt-pkg-dev (&lt;&lt; 0.3.7)
Provides: libapt-pkg2.7
Depends: libapt-pkg2.7, libc6 (&gt;= 2.1.2), libstdc++2.10
Suggests: dpkg-dev
Conflicts: deity
Description: Advanced front-end for dpkg
 This is Debian's next generation front-end for the dpkg package manager.
 It provides the apt-get utility and APT dselect method that provides a
 simpler, safer way to install and upgrade packages.
 .
 APT features complete installation ordering, multiple source capability
 and several other unique features, see the Users Guide in
 /usr/doc/apt/guide.text.gz

</pre>

<a name="otherusefulcommands"></a>
<h2>Other useful commands and packages</h2>

<p>
The <kbd>querybts</kbd> tool, available from the same package as
<a href="https://packages.debian.org/stable/utils/reportbug">reportbug</a>,
provides a convenient text-based interface to the bug tracking system.</p>

<p>Emacs users can also use the debian-bug command provided by the
<code><a href="https://packages.debian.org/stable/utils/debian-el">\
debian-el</a></code> package. When called with <kbd>M-x
debian-bug</kbd>, it will ask for all necessary information in a
similar way to <code>reportbug</code>.</p>

<hr />


