diff options
| author | Julian Andres Klode <jak@debian.org> | 2025-05-19 14:17:23 +0200 |
|---|---|---|
| committer | Julian Andres Klode <jak@debian.org> | 2025-05-19 15:20:09 +0000 |
| commit | 7724d170751b3dc1717ba7a08881437cf7151996 (patch) | |
| tree | 9f76923fbd5b856904a414fa615116940d2afff6 /doc | |
| parent | 2ddc16b9f8edff1329f5ac3e46b0c0cf9bde661d (diff) | |
Introduce apt why, apt why-not
These are implemented somewhat differently from aptitudes
why and why-not commands: They produce the actual solver
trace for why a particular decision has been taken.
For the why-not case, we need to explicitly discover our
specified package, as if nothing else depends on it in
our graph, it would otherwise always be undiscovered and
conflicts not detected (see e.g. level-3 in the test).
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/apt.8.xml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/apt.8.xml b/doc/apt.8.xml index 7af915e89..8dd1d019b 100644 --- a/doc/apt.8.xml +++ b/doc/apt.8.xml @@ -121,6 +121,17 @@ </para></listitem> </varlistentry> + <varlistentry><term><option>why, why-not</option></term> + <listitem> + <para>These commands print the reasoning path from the solver. They are similar to the equivalent aptitude commands for many use cases, but are different in that they print the actual reason the solver picked rather than the potential strongest path.</para> + <para>The <option>why</option> command determines why an installed package is installed. This + provides reasonable feedback as to why an automatically installed package is installed; for a + manually installed package no other reason is given. If the package is not installed, no reason + can be determined.</para> + <para>The <option>why-not</option> command determines why a package was determined to not be installable. This + may not always yield a result, even if a package is uninstallable.</para> + <para>Both commands take a single argument, the name of a package.</para> + </listitem></varlistentry> <varlistentry><term><option>search</option> (&apt-cache;)</term> <listitem><para><option>search</option> can be used to search for the given |