Linux 2.6 - man page for deb-split (linux section 5)
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deb-split(5) Debian deb-split(5)
deb-split - Debian multi-part binary package format
The multi-part .deb format is used to split big packages into smaller pieces to ease
transport in small media.
The file is an ar archive with a magic value of !<arch>. The file names might contain a
trailing slash (since dpkg 1.15.6).
The first member is named debian-split and contains a series of lines, separated by new-
lines. Currently seven lines are present. The first is the format version number, 2.1 at
the time this manual page was written. The second is the package name. The third is the
package version. The fourth is the md5sum of the package. The fifth is the total size of
the package. The sixth is the maximum part size. The seventh is the current part number,
followed by a slash and the total amount of parts (as in '1/10').
Programs which read multi-part archives should be prepared for additional lines to be
present, and should ignore these if this is the case.
If the version number has changed, an incompatible change has been made and the program
should stop. If it has not, then the program should be able to safely continue, unless it
encounters an unexpected member in the archive (except at the end), as described below.
The second, last required member is named data.N, where N denotes the part number. It con-
tains the raw part data.
These members must occur in this exact order. Current implementations should ignore any
additional members after data.N. Further members may be defined in the future, and (if
possible) will be placed after these two.
Debian Project 2010-01-28 deb-split(5)
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