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I am trying to find files installed from libboost-all-dev using dpkg, but it does not work. First, an indication of that I have installed the package:

$ find /usr/lib/ -name '*boost*sys*'
/usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.67.0
/usr/lib/x86_64-linux-gnu/libboost_filesystem.a
/usr/lib/x86_64-linux-gnu/libboost_filesystem.so
/usr/lib/x86_64-linux-gnu/libboost_system.so.1.67.0
/usr/lib/x86_64-linux-gnu/libboost_system.a
/usr/lib/x86_64-linux-gnu/libboost_system.so

Now running:

$ dpkg -l boost
dpkg-query: no packages found matching boost
$ dpkg -L libboost-all-dev
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libboost-all-dev
/usr/share/doc/libboost-all-dev/copyright
/usr/share/doc/libboost-all-dev/changelog.gz

so it only shows two files: copyright and changelog.gz. All libraries and headers are missing. The strange thing is that dpkg -l cannot find anything at all:

$ dpkg -l a
dpkg-query: no packages found matching a
  • What is the output of dpkg -S /usr/lib/x86_64-linux-gnu/libboost_system.so – Ravexina Jul 29 '19 at 19:04
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    Basically this package is just a meta package depending on bunch of other packages: packages.ubuntu.com/disco/libboost-all-dev – Ravexina Jul 29 '19 at 19:05
  • The output is : libboost-system1.67-dev:amd64: /usr/lib/x86_64-linux-gnu/libboost_system.so. If I run dpkg -L libboost-system1.67-dev:amd64 it shows the files, but why is not dpkg -l libboost showing anything? – Håkon Hægland Jul 29 '19 at 19:07
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    dpkg -l package-name expects a correct package name, use dpkg -l libboost* instead. – Ravexina Jul 29 '19 at 19:12
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    This might help you find about all files: apt-cache depends libboost-all-dev | grep Depends: | awk '{print $2}' | xargs -I PKGS dpkg -L PKGS 2> /dev/null. – Ravexina Jul 29 '19 at 19:27
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Basically this package is just a meta package depending on bunch of other packages.

For example here is a chain of dependencies:

libboost-all-dev --> libboost-system-dev --> libboost-system1.67-dev

Which /usr/lib/x86_64-linux-gnu/libboost_system.so comes from.

You can use dpkg -S PATH to find which package has created the corresponding file.

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