<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >Errata</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Debian Jigdo mini-HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Frequently Asked Questions" HREF="faq.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Debian Jigdo mini-HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="faq.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" > </TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="ERRATA" ></A >7. Errata</H1 ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="JIGDO-EASY" ></A >7.1. jigdo-easy</H2 ><P >Jigdo-easy, by Anne Bezemer, is a fork of <SPAN CLASS="APPLICATION" >jigdo-lite</SPAN > which is portable to a wider range of systems, including Microsoft Windows, old SunOS, HP-UX and IRIX). It's also easier to use than jigdo-lite but because of changes made to Jigdo, will only work with Potato and Woody. Jigdo-easy will not be able to download Sarge and Sid. See <A HREF="errata.html#LINKS" >Section 7.4</A > and <A HREF="faq.html#OTHERPLATFORMS" >Section 6.14</A >.</P ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="MORE-ABOUT-SCAN" ></A >7.2. More About Scan Sources</H2 ><P >By now you know that when <SPAN CLASS="APPLICATION" >jigdo-lite</SPAN > asks for files to scan, you can use 3 sources: <P ></P ><UL ><LI STYLE="list-style-type: disc" ><P >A mounted copy of an outdated CD or DVD that you wish to update.</P ></LI ><LI STYLE="list-style-type: disc" ><P >A loop-mounted copy of an outdated ISO image file on your hard drive.</P ></LI ><LI STYLE="list-style-type: disc" ><P >A loop-mounted copy of the temporary <TT CLASS="FILENAME" >.iso.tmp</TT > file, when a previous <SPAN CLASS="APPLICATION" >jigdo-lite</SPAN > run aborted.</P ></LI ></UL > </P ><P >As Jens Seidel points out, there is another, rather crafty, source you should use for a scanning source: your apt cache. Apt uses the directory <TT CLASS="FILENAME" >/var/cache/apt/archives</TT > for cache. There will be many Debian packages sitting in this directory, and they can be used for a scan source for <SPAN CLASS="APPLICATION" >jigdo-lite</SPAN >! So when you're asked for a directory to scan, by all means, use this directory too.</P ><P >If you're editing the <TT CLASS="FILENAME" >~/.jigdo-lite</TT > file by hand, be aware that multiple scan directories are space separated, for example:</P ><TABLE BORDER="1" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="SCREEN" > scanMenu='/var/cache/apt/archives/ /cdrom/' </PRE ></FONT ></TD ></TR ></TABLE ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="JIGDO-FILE-CACHE" ></A >7.3. jigdo-file-cache.db</H2 ><P >The cache contains the md5sums of files read when you supply a directory at the <TT CLASS="LITERAL" >Files to scan:</TT > prompt. If you have jigdo-file scan the same directory a second time, the scan will be very fast.</P ><P >This could be useful in the following case: rev0 gets updated to rev1. With the rev1 CD images, some packages may have been pushed from CD <TT CLASS="LITERAL" >n</TT > to CD <TT CLASS="LITERAL" >n+1</TT >, or vice versa. If you had a particularly slow link (e.g. modem), you'd try to avoid downloading these packages again. For this reason, when downloading the new version of CD <TT CLASS="LITERAL" >n</TT >, you'd let jigdo-lite scan the three CDs <TT CLASS="LITERAL" >n-1</TT >, <TT CLASS="LITERAL" >n</TT > and <TT CLASS="LITERAL" >n+1</TT > (or even all 8 CDs if you want to be 100% sure).</P ><P >If you have jigdo-lite scan the same CDs over and over again while updating each of the 8 CD images, the cache will prevent all the data on the CDs from being read multiple times.</P ><P >The cache is much more important when <EM >generating</EM > jigdo files, because you don't want jigdo-file to read in your whole 50GB Debian mirror for every generated jigdo file.</P ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="LINKS" ></A >7.4. Resources</H2 ><P >This HOWTO is winding down to a close, but I thought I'd leave you with a few links and references to learn more about the jigdo tools and how they work.</P ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><A HREF="http://atterer.net/jigdo" TARGET="_top" >http://atterer.net/jigdo</A ></DT ><DD ><P >This is the jigdo home site. You should definitely browse this site; lots of information about ports, GUI clients and everything under the sun relating to jigdo.</P ></DD ><DT ><A HREF="http://cdimage.debian.org/~costar/jigdo" TARGET="_top" >http://cdimage.debian.org/~costar/jigdo</A ></DT ><DD ><P >The Debian page for jigdo-easy (<A HREF="errata.html#JIGDO-EASY" >Section 7.1</A >).</P ></DD ><DT ><A HREF="http://www.debian.org/CD/jigdo-cd" TARGET="_top" >http://www.debian.org/CD/jigdo-cd</A ></DT ><DD ><P >The main Debian page for jigdo.</P ></DD ><DT ><A HREF="http://packages.debian.org/testing/utils/jigdo-file.html" TARGET="_top" >http://packages.debian.org/testing/utils/jigdo-file.html</A ></DT ><DD ><P >The official webpage for the Debian jigdo-file package.</P ></DD ><DT ><A HREF="http://lists.debian.org/search.html" TARGET="_top" >http://lists.debian.org/search.html</A ></DT ><DD ><P >You can use this page to search the debian-cd mailing list archives.</P ></DD ><DT ><A HREF="http://www.debian.org/MailingLists/subscribe" TARGET="_top" >http://www.debian.org/MailingLists/subscribe</A ></DT ><DD ><P >The subscription page for the debian-cd mailing list.</P ></DD ><DT ><A HREF="https://lists.berlios.de/mailman/listinfo/jigdo-user" TARGET="_top" >https://lists.berlios.de/mailman/listinfo/jigdo-user</A ></DT ><DD ><P >The subscription page for the official Jigdo mailing list.</P ></DD ></DL ></DIV ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="faq.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" > </TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Frequently Asked Questions</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" > </TD ></TR ></TABLE ></DIV ></BODY ></HTML >