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diff --git a/howto/subhurd.html b/howto/subhurd.html new file mode 100644 index 00000000..ad01a515 --- /dev/null +++ b/howto/subhurd.html @@ -0,0 +1,95 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" + "http://www.w3.org/TR/REC-html40/strict.dtd"> + +<HTML> + <HEAD> + <TITLE>GNU Hurd - Free Software Foundation (FSF)</TITLE> + <LINK REV="made" HREF="mailto:web-hurd@gnu.org"> + </HEAD> + +<BODY BGCOLOR="#000000" LINK="#8888EE" VLINK="#9F00DD" ALINK="#000088"> +<IMAGE SRC="/graphics/hurd_sm_mf_invert.jpg"> +<TABLE width="100%" border="0" cellspacing="0" cellpadding="20"> +<TR> +<TD ALIGN="LEFT" VALIGN="TOP"> +<A HREF="hurd.html#contents"><STRONG>The GNU Hurd</STRONG></A><BR> +<A HREF="learning-more-about-hurd.html#contents">About the Hurd</A><BR> +<A HREF="learning-more-about-microkernels.html#contents">About Microkernels</A><BR> +<P> +<A HREF="software.html#contents"><STRONG>Software</STRONG></A><BR> +<A HREF="trying-out-hurd.html#contents">Trying out the Hurd</A><BR> +<A HREF="getting-help.html#contents">Getting Help</A><BR> +<p> +<a href="whatis">Whatis?</a><br> +<a href="howto">Howto?</a><br> +</p> + +<P> +<!---A HREF="mirrors.html#contents">Mirrors</A><BR---> +<A HREF="acknowledgements.html#contents">Acknowledgements</A><BR> +<!---A HREF="copyright.html#contents">Copyright Notice</A---> +</TD> +<TD ALIGN="LEFT" VALIGN="TOP" TEXT="#000000" BGCOLOR="#FFFFFF"> +<h1>Running a Subhurd</h1> +<p class="author">By Roland McGrath</p> +<p>The most useful thing you can do when trying to troubleshoot the boot +sequence of the Hurd is try to run your the system in a +sub-hurd, while watching it using ps and gdb from the working hurd. Since +the sub-hurd is never going to make it all the way up, you don't even +really need to make a separate filesystem for it; you can just boot the +sub-hurd read-only on your main root filesystem if you like.</p> + +<p>The way to boot the sub-hurd is with `boot'. I would suggest something +like this: boot -d -I -Tdevice /boot/servers.boot hd0s6</p> + +<p>The -d says to pause before the start-up of each server and wait for you to +hit return, which gives you time to go attach gdb to the task before it +starts running. The -I says to leave the terminal signals normal, so +hitting C-z will suspend boot rather than sending a C-z to the virtual +console device of the sub-hurd. (Note that suspending boot does not +suspend the sub-hurd, just boot itself; boot acts as the server for device +access from the sub-hurd, so the sub-hurd's attempts to write to its +console or open devices block while boot is suspended.)</p> + +<p>When you do `ps -A' on the main hurd, the sub-hurd tasks will appear as +unknown processes. You can figure out which is which just by looking at +the order of unknown processes that appear with higher PIDs than the boot +process. They appear in the order you see in the "bootstrap: ..." +messages, i.e. the first unknown after boot will be ext2fs.static, the +second exec, then init, then proc.</p> + + +<HR> + +Return to <A HREF="/home.html" TARGET="_parent">GNU's home page</A>. +<P> + +Please send FSF & GNU inquiries & questions to + +<A HREF="mailto:gnu@gnu.org"><EM>gnu@gnu.org</EM></A>. +There are also <A HREF="/home.html#ContactInfo" TARGET="_parent">other ways to +contact</A> the FSF. +<P> + +Please send comments on these web pages to + +<A HREF="mailto:webmasters@www.gnu.org"><EM>webmasters@www.gnu.org</EM></A>, +send other questions to +<A HREF="mailto:gnu@gnu.org"><EM>gnu@gnu.org</EM></A>. +<P> +Copyright (C) 1998, 1999 Free Software Foundation, Inc., +59 Temple Place - Suite 330, Boston, MA 02111, USA +<P> +Verbatim copying and distribution of this entire article is +permitted in any medium, provided this notice is preserved.<P> +Updated: +<!-- hhmts start --> +23 Jan 1999 matthias +<!-- hhmts end --> +<HR> +</TD> +</TR> +</TABLE> + +</BODY> +</HTML> |