Apt: Difference between revisions
From DWIKI
m (→FAQ) |
m (→HOWTO) |
||
| (10 intermediate revisions by the same user not shown) | |||
| Line 14: | Line 14: | ||
==Extract files from .deb== | ==Extract files from .deb== | ||
dpkg-deb | dpkg-deb | ||
==Pin a version== | |||
*[https://help.ubuntu.com/community/PinningHowto Pinning Howto] | |||
==List installed packages== | |||
apt list --installed | |||
= FAQ = | = FAQ = | ||
| Line 27: | Line 34: | ||
== have been kept back == | == have been kept back == | ||
Usually means you should run | Usually means you should run | ||
apt install <kept-back-package> | |||
or | |||
apt upgrade packagename | |||
otherwise | |||
apt dist-upgrade | |||
==Unable to correct problems, you have held broken packages.== | ==Unable to correct problems, you have held broken packages.== | ||
| Line 44: | Line 56: | ||
==Could not handshake: The TLS connection was non-properly terminated.== | ==Could not handshake: The TLS connection was non-properly terminated.== | ||
try http instead of https | try http instead of https | ||
==Depends: but it is not going to be installed== | ==Depends: but it is not going to be installed== | ||
| Line 54: | Line 62: | ||
==E: Unable to correct problems, you have held broken packages.== | ==E: Unable to correct problems, you have held broken packages.== | ||
==Which services should be restarted?== | |||
That's from '''needrestart''' | |||
==Prevent restarting all services when installing a package== | |||
NEEDRESTART_MODE=i apt install somepackage | |||
==What repository provides package== | |||
apt policy <packagename> | |||
==Error messages== | |||
===Key is stored in legacy trusted.gpg keyring=== | |||
Check [https://itsfoss.com/apt-key-deprecated/ apt-key is deprecated] | |||
===Certificate verification failed: The certificate is NOT trusted.=== | |||
try | |||
deb [trusted=yes] ... | |||
in sources.list, but things might be worse than that, in case of launchpad change to | |||
https://ppa.launchpadcontent.net/ | |||
==The following upgrades have been deferred due to phasing== | |||
apt install <whatever package it lists> | |||
Latest revision as of 09:31, 5 November 2024
Debian/Ubuntu package manager
Unattended upgrades
Disable unattended upgrades
In /etc/apt/apt.conf.d/20auto-upgrades
APT::Periodic::Unattended-Upgrade "0";
HOWTO
Extract files from .deb
dpkg-deb
Pin a version
List installed packages
apt list --installed
FAQ
Show version of packages before installing
apt-get -s install somepackage
or
apt install madison-lite apt-cache madison somepackage
or
apt-show packagename
have been kept back
Usually means you should run
apt install <kept-back-package>
or
apt upgrade packagename
otherwise
apt dist-upgrade
Unable to correct problems, you have held broken packages.
Try
dpkg --get-selections | grep hold
What packages depend on package
apt-cache rdepends --installed libc6-dev
Clear cache
apt-get clean
Could not handshake: The TLS connection was non-properly terminated.
try http instead of https
Depends: but it is not going to be installed
First try
apt-get update && apt-get upgrade
E: Unable to correct problems, you have held broken packages.
Which services should be restarted?
That's from needrestart
Prevent restarting all services when installing a package
NEEDRESTART_MODE=i apt install somepackage
What repository provides package
apt policy <packagename>
Error messages
Key is stored in legacy trusted.gpg keyring
Check apt-key is deprecated
Certificate verification failed: The certificate is NOT trusted.
try
deb [trusted=yes] ...
in sources.list, but things might be worse than that, in case of launchpad change to
https://ppa.launchpadcontent.net/
The following upgrades have been deferred due to phasing
apt install <whatever package it lists>
