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