dpkg-scanpackages sorts through a tree of Debian binary packages and
creates a Packages file, used by apt(8), dselect(1), etc, to tell the
user what packages are available for installation. These Packages
files are the same as those found on Debian archive sites and CD-
ROMs. You might use dpkg-scanpackages yourself if making a directory
of local packages to install on a cluster of machines.
Note: If you want to access the generated Packages file with apt you
will probably need to compress the file with xz(1) (generating a
Packages.xz file), bzip2(1) (generating a Packages.bz2 file) or
gzip(1) (generating a Packages.gz file). apt ignores uncompressed
Packages files except on local access (i.e. file:// sources).
binary-path is the name of the tree of the binary packages to process
(for example, contrib/binary-i386). It is best to make this relative
to the root of the Debian archive, because every Filename field in
the new Packages file will start with this string.
override-file is the name of a file to read which contains
information about how the package fits into the distribution (the
file can be compressed since dpkg 1.15.5); see deb-override(5).
path-prefix is an optional string to be prepended to the Filename
If more than one version of a package is found only the newest one is
included in the output. If they have the same version and only differ
in architecture only the first one found is used.
-t, --type type
Scan for *.type packages, instead of *.deb.
-e, --extra-override file
Scan file to find supplementary overrides (the file can be
compressed since dpkg 1.15.5). See deb-extra-override(5) for
more information on its format.
-a, --arch arch
Use a pattern consisting of *_all.deb and *_arch.deb instead
of scanning for all debs.
-h, --hash hash-list
Only generate file hashes for the comma-specified list
specified (since dpkg 1.17.14). The default is to generate
all currently supported hashes. Supported values: md5, sha1,
Include all found packages in the output.
-M, --medium id-string
Add an X-Medium field containing the value id-string (since
dpkg 1.15.5). This field is required if you want to generate
Packages.cd files for use by the multicd access method of
Show the usage message and exit.
Show the version and exit.
dpkg-scanpackages outputs the usual self-explanatory errors. It also
warns about packages that are in the wrong subdirectory, are
duplicated, have a Filename field in their control file, are missing
from the override file, or have maintainer substitutions which do not
This page is part of the dpkg (Debian Package Manager) project.
Information about the project can be found at
⟨https://wiki.debian.org/Teams/Dpkg/⟩. If you have a bug report for
this manual page, see
⟨http://bugs.debian.org/cgi-bin/pkgreport.cgi?src=dpkg⟩. This page
was obtained from the project's upstream Git repository
⟨git://git.debian.org/git/dpkg/dpkg.git⟩ on 2017-03-13. If you dis‐
cover any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
1.18.15-3-ga2ef 1970-01-01 dpkg-scanpackages(1)