Package: aptitude Version: 0.8.10-9 Here it says it is marking the (uninstalled) package as hold, but we observe it doesn't actually.
# set openjdk-11-jre-headless # aptitude search $@ p openjdk-11-jre-headless - OpenJDK Java runtime, using Hotspot JIT (headless) # aptitude hold $@ Marking package openjdk-11-jre-headless (hold) # aptitude search $@ p openjdk-11-jre-headless - OpenJDK Java runtime, using Hotspot JIT (headless) # aptitude forbid-version $@ Package openjdk-11-jre-headless is not installed, cannot forbid an upgrade At least forbid-version is more truthful.

