O que exatamente o sudo apt-get -f install faz?

Question

Eu já vi isso antes. Eu só estou querendo saber o que exatamente isso faz?

    

Answer 1

De man apt-get :

   -f, --fix-broken
       Fix; attempt to correct a system with broken dependencies in place. This
       option, when used with install/remove, can omit any packages to permit APT
       to deduce a likely solution. If packages are specified, these have to
       completely correct the problem. The option is sometimes necessary when
       running APT for the first time; APT itself does not allow broken package
       dependencies to exist on a system. It is possible that a system's dependency
       structure can be so corrupt as to require manual intervention (which usually
       means using dselect(1) or dpkg --remove to eliminate some of the offending
       packages). Use of this option together with -m may produce an error in some
       situations. Configuration Item: APT::Get::Fix-Broken.

    

Answer 2

Aqui é onde eu achei muito útil. Eu executei um comando dpkg para instalar alguns pacotes .deb, mas a instalação falhou porque algumas dependências estavam faltando.

Eu então corri

apt-get -f install

e instalou exatamente as dependências necessárias. Eu pude então executar novamente o comando dpkg e tudo funcionou.