Deb: On upgrades, stop both mysqld and mariadbd for backwards compat

Author: ottok

debian/mariadb-server-10.5.postrm

@@ -18,9 +18,12 @@ stop_server() {
  # Return immediately if there are no mysql processes running
  # as there is no point in trying to shutdown in that case.
  if ! pgrep -x mariadbd > /dev/null; then return; fi
+ # Compatibility with versions that ran 'mysqld'
+ if ! pgrep -x mysqld > /dev/null; then return; fi
 
  set +e
  invoke-rc.d mariadb stop
+ invoke-rc.d mysql stop # Backwards compatibility
  errno=$?
  set -e
 

debian/mariadb-server-10.5.preinst

@@ -31,9 +31,12 @@ stop_server() {
  # Return immediately if there are no mysql processes running
  # as there is no point in trying to shutdown in that case.
  if ! pgrep -x --ns $$ mariadbd > /dev/null; then return; fi
+ # Compatibility with versions that ran 'mysqld'
+ if ! pgrep -x --ns $$ mysqld > /dev/null; then return; fi
 
  set +e
  invoke-rc.d mariadb stop
+ invoke-rc.d mysql stop # Backwards compatibility
  errno=$?
  set -e