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-<!--#include file="header.html" -->
-
-
-<h3>Frequently Asked Questions</h3>
-
-This is a collection of some of the more frequently asked questions
-about BusyBox. Some of the questions even have answers. If you
-have additions to this FAQ document, we would love to add them,
-
-<ol>
-<li><a href="#kernel">Which Linux kernel versions are supported?</a>
-<li><a href="#arch">Which architectures does BusyBox run on?</a>
-<li><a href="#libc">Which C libraries are supported?</a>
-<li><a href="#commercial">Can I include BusyBox as part of the software on my device?</a>
-<li><a href="#bugs">I think I found a bug in BusyBox! What should I do?!</a>
-<li><a href="#job_control">Why do I keep getting "sh: can't access tty; job control
- turned off" errors? Why doesn't Control-C work within my shell?</a>
-<li><a href="#demanding">I demand that you to add &lt;favorite feature&gt; right now! How come
- you don't answer all my questions on the mailing list instantly? I demand
- that you help me with all of my problems <em>Right Now</em>!</a>
-<li><a href="#getting_started">How can I get started using BusyBox?</a>
-<li><a href="#helpme">I need help with BusyBox! What should I do?</a>
-<li><a href="#contracts">I need you to add &lt;favorite feature&gt;! Are the BusyBox developers willing to
- be paid in order to fix bugs or add in &lt;favorite feature&gt;? Are you willing to provide
- support contracts?</a>
-<li><a href="#support">I think you guys are great and I want to help support your work!</a>
-
-
-</ol>
-
-
-<hr />
-<p>
-<h2><a name="kernel">Which Linux kernel versions are supported?</a></h2>
-<p>
-
-
- Full functionality requires Linux 2.2.x or better. A large fraction of the
- code should run on just about anything. While the current code is fairly
- Linux specific, it should be fairly easy to port the majority of the code
- to support, say, FreeBSD or Solaris, or Mac OS X, or even Windows (if you
- are into that sort of thing).
-
-
-<hr />
-<p>
-<h2><a name="arch">Which architectures does BusyBox run on?</a></h2>
-<p>
-
-
- BusyBox in general will build on any architecture supported by gcc.
- Kernel module loading for 2.2 and 2.4 Linux kernels is currently
- limited to ARM, CRIS, H8/300, x86, ia64, x86_64, m68k, MIPS, PowerPC,
- S390, SH3/4/5, Sparc, v850e, and x86_64 for 2.4.x kernels.
-
- With 2.6.x kernels, module loading support should work on all architectures.
-
-
-<hr />
-<p>
-<h2><a name="libc">Which C libraries are supported?</a></h2>
-<p>
-
-
- uClibc and glibc are supported. People have been looking at newlib and
- dietlibc, but they are currently considered unsupported, untested, or
- worse. Linux-libc5 is no longer supported. If you require a small C
- library, you should probably use uClibc.
-
-
-<hr />
-<p>
-<h2><a name="commercial">Can I include BusyBox as part of the software on my device?</h2>
-
- Yes. As long as you <a href="http://busybox.net/license.html">fully comply
- with the generous terms of the GPL BusyBox license</a> you can ship BusyBox
- as part of the software on your device.
-
- <a href="#support">Please consider sharing some of the money you make.</a>
-
-
-<hr />
-<p>
-<h2><a name="bugs">I think I found a bug in BusyBox! What should I do?</h2>
-<p>
-
- If you find a problem with BusyBox, please submit a detailed bug report to
- the BusyBox mailing list at <a href="mailto:busybox@mail.busybox.net">
- busybox@mail.busybox.net</a>. Please do not send private email to Erik
- (the maintainer of BusyBox) asking for private help unless you are planning
- on paying for consulting services. When we answer questions on the BusyBox
- mailing list, it helps everyone, while private answers help only you...
-
- <p>
-
- If you find bugs, please submit a detailed bug report to the BusyBox mailing
- list at busybox@mail.busybox.net. A well-written bug report should include a
- transcript of a shell session that demonstrates the bad behavior and enables
- anyone else to duplicate the bug on their own machine. The following is such
- an example:
-
-<pre>
- To: busybox@mail.busybox.net
- From: diligent@testing.linux.org
- Subject: /bin/date doesn't work
-
- Package: BusyBox
- Version: 1.00
-
- When I execute BusyBox 'date' it produces unexpected results.
- With GNU date I get the following output:
-
- $ date
- Fri Oct 8 14:19:41 MDT 2004
-
- But when I use BusyBox date I get this instead:
-
- $ date
- illegal instruction
-
- I am using Debian unstable, kernel version 2.4.27 on a x86 system,
- and the latest uClibc from CVS. Thanks for the wonderful program!
-
- -Diligent
-</pre>
-
- Note the careful description and use of examples showing not only what BusyBox
- does, but also a counter example showing what an equivalent GNU app does. Bug
- reports lacking proper detail may never be fixed... Thanks for understanding.
-
-<hr />
-<p>
-<h2><a name="job_control">Why do I keep getting "sh: can't access tty; job control
- turned off" errors? Why doesn't Control-C work within my shell?</a></h2>
-<p>
-
- Job control will be turned off since your shell can not obtain a controlling
- terminal. This typically happens when you run your shell on /dev/console.
- The kernel will not provide a controlling terminal on the /dev/console
- device. Your should run your shell on a normal tty such as tty1 or ttyS0
- and everything will work perfectly. If you <em>REALLY</em> want your shell
- to run on /dev/console, then you can hack your kernel (if you are into that
- sortof thing) by changing drivers/char/tty_io.c to change the lines where
- it sets "noctty = 1;" to instead set it to "0". I recommend you instead
- run your shell on a real console...
-
-
-<hr />
-<p>
-<h2><a name="getting_started">How can I get started using BusyBox?</a></h2>
-<p>
-
- An easy method to build your own basic BusyBox based system, is to
- follow these simple steps:
- <ul>
- <li> Point your web browser <a href="/cgi-bin/cvsweb/buildroot/">here</a>
- <li> Click on "Download tarball"
- <li> Unpack the tarball on your Linux system somewhere
- <li> run 'make' and configure things to taste.
- <li> run 'unset CC'. Some Linux systems (i.e. Gentoo) set 'CC'
- in the system environment which messes up cross compiles.
- <li> run 'make'
- <li> go have lunch, drink a pop, call a friend, play a video game, etc
- till it finishes downloading software and compiling things.
- <li> You should now have a shiny new BusyBox based system.
- </ul>
-
-
-<hr />
-<p>
-<h2><a name="demanding">I demand that you to add &lt;favorite feature&gt; right now! How come
- you don't answer all my questions on the mailing list instantly? I demand
- that you help me with all of my problems <em>Right Now</em>!</a></h2>
-<p>
-
- You have not paid us a single cent and yet you still have the product of
- many years of our work. We are not your slaves! We work on BusyBox
- because we find it useful and interesting. If you go off flaming us, we
- will ignore you.
-
-
-<hr />
-<p>
-<h2><a name="helpme">I need help with BusyBox! What should I do?</a></h2>
-<p>
-
- If you find that you need help with BusyBox, you can ask for help on the
- BusyBox mailing list at busybox@mail.busybox.net. In addition to the BusyBox
- mailing list, Erik (andersee), Manuel (mjn3) and others are known to hang out
- on the uClibc IRC channel: #uclibc on irc.freenode.net.
-
- <p>
-
- <b>Please do not send private email to Erik, Manuel, or the other BusyBox
- contributors asking for private help unless you are planning on paying for
- consulting services.</b>
-
- <p>
-
- When we answer questions on the BusyBox mailing list, it helps everyone
- since people with similar problems in the future will be able to get help
- by searching the mailing list archives. Private help is reserved as a paid
- service. If you need to use private communication, or if you are serious
- about getting timely assistance with BusyBox, you should seriously consider
- paying for consulting services.
-
- <p>
-
-
-
-<hr />
-<p>
-<h2><a name="contracts">I need you to add &lt;favorite feature&gt;! Are the BusyBox
- developers willing to be paid in order to fix bugs or add in &lt;favorite feature&gt;?
- Are you willing to provide support contracts?</a></h2>
-<p>
-
- Sure! Now you have our attention! What you should do is contact <a
- href="mailto:andersen@codepoet.org">Erik Andersen</a> of <a
- href="http://codepoet-consulting.com/">CodePoet Consulting</a> to bid
- on your project. If Erik is too busy to personally add your feature, there
- are many other active BusyBox contributors who will almost certainly be able
- to help you out. Erik can contact them privatly, and may even let you to
- post your request for services on the mailing list.
-
-
-<hr />
-<p>
-<h2><a name="support">I think you guys are great and I want to help support your work!</a></h2>
-<p>
-
- Wow, that would be great! Erik personally pays for all the bandwidth, and
- all servers used for busybox.net out of his own pocket. If you would like
- to make a donation to help support BusyBox, and/or request features, you
- can click here:
-
- <!-- Begin PayPal Logo -->
- <center>
- <form action="https://www.paypal.com/cgi-bin/webscr" method="post">
- <input type="hidden" name="cmd" value="_xclick">
- <input type="hidden" name="business" value="andersen@codepoet.org">
- <input type="hidden" name="item_name" value="Support BusyBox">
- <input type="hidden" name="image_url" value="http://codepoet-consulting.com/images/codepoet.png">
- <input type="hidden" name="no_shipping" value="1">
- <input type="image" src="images/donate.png" name="submit" alt="Make donation using PayPal">
- </form>
- </center>
- <!-- End PayPal Logo -->
-
- If you prefer to contact Erik directly to make a donation, donate hardware,
- request support, etc, you can contact
- <a href="http://codepoet-consulting.com/">CodePoet Consulting</a> here.
- CodePoet Consulting can accept both Visa and MasterCard for those that do not
- trust PayPal...
-
-<hr />
-<p>
-<h2><a name="optimize">I want to make busybox even smaller, how do I go about it?</a></h2>
-<p>
- To conserve bytes it's good to know where they're being used, and the
- size of the final executable isn't always a reliable indicator of
- the size of the components (since various structures are rounded up,
- so a small change may not even be visible by itself, but many small
- savings add up).
-</p>
-<p>
- To examine a busybox binary with an eye to saving bytes, build an
- optimized debug version and run the "nm" command against it, like so:
-</p>
-<p>
- make clean && make STRIPCMD=/bin/true && nm --size-sort busybox
-</p>
-<p>
- This gives a list of symbols and the amount of space allocated for
- each one, sorted by size. (Note: do not enable CONFIG_DEBUG for this,
- as that disables compiler optimization which is great for running gdb
- but misleading when trying to figure out how much space each component
- is really using under normal circumstances.)
-</p>
-<hr />
-
-
-
-<br>
-<br>
-<br>
-
-<!--#include file="footer.html" -->
-