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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 <[email protected]>
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 [email protected]] If
you have a bug report for this manual page, send it to
[email protected]. This page was obtained from the project's
upstream Git repository
⟨https://salsa.debian.org/debian/debhelper.git⟩ on 2025-02-02.
(At that time, the date of the most recent commit that was found
in the repository was 2025-01-19.) 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
[email protected]
13.11.9 2023-12-22 DH_MOVETOUSR(1)
Pages that refer to this page: debhelper(7)
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HTML rendering created 2025-02-02 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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