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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | AUTHOR | COLOPHON |
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DH_MOVETOUSR(1) Debhelper DH_MOVETOUSR(1)
dh_movetousr - canonicalize location according to merged-/usr
dh_movetousr [debhelper options] [--fail-noop | --warn-noop]
dh_movetousr is a debhelper program that canonicalizes paths
inside packages according to merged-/usr. Shipping aliased paths
is known to cause problems with dpkg, so this helper moves all
affected files to /usr regardless of how they were installed.
The compatibility symlinks ensure that converted packages
continue to work. In the process, absolute symbolic links may
become relative or vice versa due to Debian policy section 10.5.
Please keep in mind that moving files in this way is known to
cause problems. Known problems have been documented at
<https://people.debian.org/~helmutg/dep17.html>. For instance,
if files have been moved between packages, use of this tool may
cause file loss during upgrades (P1). Most problems can be
detected by <https://salsa.debian.org/helmutg/dumat>, which uses
the Debian bug tracking for feedback. Therefore, it is
recommended to upload to experimental when moving files (e.g.
using this helper) or restructuring packages that earlier moved
files. A particular problem not being detected is about dpkg-
statoverride (P5). Please review uses of dpkg-statoverride in
maintainer scripts and update them as needed. For these reasons,
dh_movetousr is not automatically enabled in e.g. a compatibility
level.
While we want to move files to /usr in trixie and beyond, we do
not want to move them in bookworm and earlier. This poses
challenges to backporting packages, because any such moves have
to be reverted during the backport. A backport of debhelper to
bookworm shall include a stub for this helper doing nothing to
achieve this goal. For packages that do not need to be
backported (e.g. packages targeting forky and beyond), consider
updating locations instead of using this helper. When the only
affected type of file is systemd units, consider using
dh_installsystemd or detecting the unit location from "pkgconf
--variable=systemdsystemunitdir systemd" instead of this helper
as both will work in backports.
For further information on the state of the transition refer to
<https://wiki.debian.org/UsrMerge>.
dh_movetousr shall be removed from debhelper during forky+1 is
release cycle.
--fail-noop
Fail if no files were found in aliased locations and
therefore no change has been performed.
--warn-noop
Warn if no files were found in aliased locations and
therefore no change has been performed.
Build-Depends: dh-sequence-movetousr
Enable this tool in a package that uses dh.
debhelper(7)
This program is a part of debhelper.
Helmut Grohne <helmut@subdivi.de>
This page is part of the debhelper (helper programs for
debian/rules) project. Information about the project can be
found at [unknown -- if you know, please contact man-
pages@man7.org] If you have a bug report for this manual page,
send it to submit@bugs.debian.org. This page was obtained from
the project's upstream Git repository
⟨https://salsa.debian.org/debian/debhelper.git⟩ on 2023-12-22.
(At that time, the date of the most recent commit that was found
in the repository was 2023-12-19.) If you discover 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 to
man-pages@man7.org
13.11.9 2023-12-22 DH_MOVETOUSR(1)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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