6b3ce5fdcc
When setting up coredump handling, if there are old mounts in a deleted state (e.g. from an older installation), systemd might fail to activate the new `.mount` unit properly because it assumes the path is already mounted. Explicitly unmount `/var/lib/systemd/coredump` before proceeding with the setup to ensure a clean state. Fix: scylladb/scylla-enterprise#5692 Closes scylladb/scylladb#28300