#apt-get-update

APT local package cache and Debian mirrors: stale metadata and install-time consistency

APT keeps a local copy of package index data under /var/lib/apt/lists , and that cache is synchronized with a remote Debian mirror only when an explicit update operation runs. The goal is to pin down the interoperability contract at this boundary: what an install operation may assume about how closely the cached lists match the mirror's current state, for th

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package-managementdebianapt