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65 lines
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HTML
65 lines
2.8 KiB
HTML
<html><head>
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<title>swim - UPGRADING WITH APT
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</title>
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<link rev=made href="mailto:mttrader@access.mountain.net">
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</head><body>
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<h1>
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swim - chapter 9<br>
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UPGRADING WITH APT
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</h1>
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usage: <strong>swim --apt</strong>
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<P>
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options: <strong>[-xyz] [--upgrade] [--dist_upgrade]</strong>
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<P>
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<strong>apt-get</strong> provides powerful methods to change an
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installion. When these methods are called using <strong>--apt</strong>,
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<strong>swim</strong> will not allow you to proceed until you are
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absolutely sure this is what you want to do. Before using these methods do
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a ``<strong>swim --apt --update</strong>'' so that
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<strong>apt-get</strong> knows the newest versions of available packages.
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This major mode requires a combination of <strong>-x</strong>,
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<strong>-xz</strong> or <strong>-xyz</strong> to be used along with either
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<strong>--upgrade</strong> or <strong>--dist_upgrade</strong>.
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<strong>-x</strong> used alone will simulate what would happen if
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<strong>-xz or -xyz</strong> were used (also see <code>-xyz</code> above).
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<P>
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<strong>--upgrade</strong> is somewhat similiar to doing ``<strong>swim
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-qatxz</strong>'' except that it is a more intelligent method because
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<strong>apt</strong> does some behind the scene calculations in regards to
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package relationships, in fact the ``<strong>swim -qatxz</strong>''
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approach will provide totally different results, or maybe these were the
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results you really wanted. ``<strong>swim --apt --upgrade -xz</strong>''
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is the prefered, proper, and built-in way provided by
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<strong>apt-get</strong> to install the newest versions for all packages
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installed on your system. This method will not install any newer versions
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of packages which would change the install status of other packages. Note:
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It is not recommended to combine the query option <strong>-a</strong> with
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<strong>-xz or -xyz</strong>, but combining the query option
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<strong>-a</strong> just with <strong>-x</strong> can be educational.
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<P>
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<strong>--dist_upgrade</strong> combines an <strong>--upgrade</strong>
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with the installation of packages which are not installed. This method
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carefully examines dependencies, and resolves conflicts, and given these
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factors it will upgrade the most important packages before considering the
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installation of less important packages. Less important packages will be
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installed only if there are not any conflicts.
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<hr>
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swim
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- <A href="index.html#copyright">
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Copyright <20> 1999 Jonathan D. Rosenbaum
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</A>
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<br>
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<A href="index.html#toc">Contents</A>; <A href="ch-search.html">next</A>; <A href="ch-query.html">back</A>.
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<br>
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<address>12 March 1999<br>
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Jonathan D. Rosenbaum<A href="mailto:mttrader@access.mountain.net">mttrader@access.mountain.net</A></address>
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</body></html>
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