Can't install Updates by Software Updater
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
21617
Why can't I press the Install button when installing applications from unknown sources?
35160
Invisible software updates list in Software Updater
138044
How can I stop the Software Updater from nagging me to restart?
56150
Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
90822
How can I install just security updates from the command line?
90937
apt-get update errors
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
138125
dpkg: error: cannot scan updates directory `/var/lib/dpkg/updates/'
107535
Unable to install software or update the system after half installed java
85958
Automatic updates are not auto-downloading
50161
Can't install/uninstall packages in Debian
80106
How do I enable automatic updates?
76905
Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
110896
Package installation - Outdated repository
1520
How to install software or upgrade from an old unsupported release?
12614
Upgrade problem