Tag: debian

Apt says packages have been kept back during upgrade. What the message means on Debian 12 and Ubuntu, why it happens, and how to install those packages safely.

Upgrade one package with apt and leave the rest alone. The exact flag, why apt upgrade nginx does not work, version pinning, and held package behaviour.

The official, no-nonsense way to install Docker Engine on Ubuntu and Debian, repository setup, key import, and one command to verify it works.

Old kernels pile up in /boot and eat disk space, safely remove unused kernels on Ubuntu and Debian with apt and dpkg.