Packages, updates & system information
Identify the operating system, inspect package state and plan controlled updates with the correct distribution tools.
How do I identify a server’s Linux distribution, kernel and CPU architecture?
Identify a Linux server’s distribution, release, running kernel and architecture before choosing compatible packages or commands.
Read the answer Packages, updates & system informationHow do I check whether a Linux package is installed and which version it uses?
Query an installed Linux package version using Debian or RPM tools, and distinguish package state from a running application version.
Read the answer Packages, updates & system informationHow do I check pending Linux updates without installing them?
Review pending Linux package updates with APT or DNF, recognise metadata refreshes, and interpret update-check exit codes correctly.
Read the answer Packages, updates & system informationHow do I install one approved Linux utility and review its dependencies first?
Preview and install one approved Linux package through trusted repositories, then verify its version without running downloaded shell scripts.
Read the answer Packages, updates & system informationHow do I preview a Linux upgrade before scheduling maintenance?
Preview Linux upgrade transactions, identify package removals and service impact, and plan validation before installing changes.
Read the answer Packages, updates & system informationWhat should I do when APT says another process holds the package lock?
Diagnose an APT or dpkg lock on Debian and Ubuntu, identify legitimate background updates, and avoid corrupting package state.
Read the answer Packages, updates & system informationHow do I investigate an interrupted Debian or Ubuntu package installation?
Inspect unfinished Debian package configuration and dependency problems before choosing a controlled package-repair transaction.
Read the answer Packages, updates & system informationHow do I check which repository supplies a Linux package?
Inspect Linux package candidates and repository origin, understand cached metadata, and keep signature verification intact.
Read the answer Packages, updates & system informationHow do I tell whether a kernel update is installed but not yet running?
Compare a Linux server’s active kernel with installed kernel packages and plan a controlled reboot when required by the distribution.
Read the answer Packages, updates & system informationHow do I check server time, timezone and clock synchronisation?
Check Linux server time, timezone and synchronisation status so logs, certificates and scheduled jobs use a consistent time reference.
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