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doc: Add a note and warning regarding the usage of deb packs.

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* doc/guix.texi (Invoking guix pack): Move to the end of the table, and add a
note and warning regarding the usage of deb packs.
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Hartmut Goebel 2020-08-19 10:44:27 +02:00 committed by Maxim Cournoyer
parent b7d70aeb0b
commit 364db4fdf6
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doc/guix.texi
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@ -6028,11 +6028,6 @@ This produces a SquashFS image containing all the specified binaries and
symlinks, as well as empty mount points for virtual file systems like
procfs.
@item deb
This produces a Debian archive (a package with the @samp{.deb} file
extension) containing all the specified binaries and symbolic links,
that can be installed on top of any dpkg-based GNU/Linux distribution.
@quotation Note
Singularity @emph{requires} you to provide @file{/bin/sh} in the image.
For that reason, @command{guix pack -f squashfs} always implies @code{-S
@ -6047,6 +6042,27 @@ If you forget the @code{bash} (or similar) package, @command{singularity
run} and @command{singularity exec} will fail with an unhelpful ``no
such file or directory'' message.
@end quotation
@item deb
This produces a Debian archive (a package with the @samp{.deb} file
extension) containing all the specified binaries and symbolic links,
that can be installed on top of any dpkg-based GNU(/Linux) distribution.
@quotation Note
Because archives produced with @command{guix pack} contain a collection
of store items and because each @command{dpkg} package must not have
conflicting files, in practice that means you likely won't be able to
install more than one such archive on a given system.
@end quotation
@quotation Warning
@command{dpkg} will assume ownership of any files contained in the pack
that it does @emph{not} know about. It is unwise to install
Guix-produced @samp{.deb} files on a system where @file{/gnu/store} is
shared by other software, such as a Guix installation or other, non-deb
packs.
@end quotation
@end table
@cindex relocatable binaries