APT configuration and Preference

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Operating system/ Linux
| Linux

APT configuration and Preference

APT configuration file

  • /etc/apt/apt.conf
  • /etc/apt/apt.conf.d/
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cat << EOF | sudo tee /etc/apt/apt.conf.d/zz-10-install
APT::Install-Recommends "0";
APT::Install-Suggests "0";

#Acquire::http { Proxy "http://www.example.com:8080"; };
#Acquire::http { Proxy "socks5h://127.0.0.1:10080"; };

Acquire::Languages "none";
Acquire::GzipIndexes "true";
Acquire::CompressionTypes::Order { "xz"; "gz"; };
EOF

APT Configuration Query program

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apt-config dump

Preference control file for APT

  • /etc/apt/preferences
  • /etc/apt/preferences.d/

stable

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cat << EOF | sudo tee /etc/apt/preferences.d/10-stable
Package: *
Pin: release a=stable
Pin-Priority: 500
EOF

testing

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cat << EOF | tee /etc/apt/preferences.d/20-testing
Package: *
Pin: release a=testing
Pin-Priority: 400
EOF

unstable

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cat << EOF | tee /etc/apt/preferences.d/30-unstable
Package: *
Pin: release a=unstable
Pin-Priority: 90
EOF

experimental

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cat << EOF | tee /etc/apt/preferences.d/40-experimental
Package: *
Pin: release a=experimental
Pin-Priority: 1
EOF

Shows available versions of installed packages

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apt-get install -y --no-install-recommends apt-show-versions

apt-show-versions -u -b

Install/Upgrading Testing Packages

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apt-get -t testing install nginx-full

apt-get install -y --no-install-recommends `apt-show-versions -u -b | grep testing`

Show policy settings

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apt-cache policy wireguard-dkms

apt-get -t unstable install wireguard

List of configured APT data sources

  • /etc/apt/sources.list
  • /etc/apt/sources.list.d
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deb http://deb.debian.org/debian/ stable main contrib non-free
deb http://deb.debian.org/debian/ stable-updates main contrib non-free
deb http://deb.debian.org/debian/ stable-proposed-updates main contrib non-free
deb http://deb.debian.org/debian/ stable-backports main contrib non-free

deb http://deb.debian.org/debian/ testing main contrib non-free
deb http://deb.debian.org/debian/ testing-updates main contrib non-free
deb http://deb.debian.org/debian/ testing-proposed-updates main contrib non-free

deb http://deb.debian.org/debian/ unstable main contrib non-free