103 lines
2.5 KiB
Text
103 lines
2.5 KiB
Text
# dpkg manual page - deb-split(5)
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#
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# Copyright © 2009-2012 Guillem Jover <guillem@debian.org>
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#
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# This is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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=encoding utf8
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=head1 NAME
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deb-split - Debian multi-part binary package format
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=head1 SYNOPSIS
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I<filename>B<.deb>
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=head1 DESCRIPTION
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The multi-part B<.deb> format is used to split big packages into smaller
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pieces to ease transport in small media.
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=head1 FORMAT
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The file is an B<ar> archive with a magic value of B<!E<lt>archE<gt>>.
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The file names might contain a trailing slash (since dpkg 1.15.6).
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The first member is named B<debian-split> and contains a series
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of lines, separated by newlines.
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Currently eight lines are present:
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=over
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=item *
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The format version number, B<2.1> at the time this manual page was
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written.
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=item *
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The package name.
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=item *
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The package version.
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=item *
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The md5sum of the package.
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=item *
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The total size of the package.
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=item *
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The maximum part size.
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=item *
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The current part number, followed by a slash and the total amount of
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parts (as in ‘1/10’).
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=item *
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The package architecture (since dpkg 1.16.1).
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=back
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Programs which read multi-part archives should be prepared for the minor
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format version number to be increased and additional lines to be present,
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and should ignore these if this is the case.
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If the major format version number has changed, an incompatible change has
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been made and the program should stop.
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If it has not, then the program should
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be able to safely continue, unless it encounters an unexpected member
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in the archive (except at the end), as described below.
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The second, last required member is named B<data.>I<N>, where I<N>
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denotes the part number.
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It contains the raw part data.
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These members must occur in this exact order.
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Current implementations
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should ignore any additional members after B<data.>I<N>.
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Further members may be defined in the future, and (if possible) will be
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placed after these two.
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=head1 SEE ALSO
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L<deb(5)>,
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L<dpkg-split(1)>.
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