debian/apt.conf.autoremove

   1 APT
   2 {
   3   NeverAutoRemove
   4   {
   5         "^linux-image.*";
   6         "^linux-restricted-modules.*";
   7         "^linux-ubuntu-modules-.*";
   8   };
   9
  10   Never-MarkAuto-Sections
  11   {
  12         "metapackages";
  13         "restricted/metapackages";
  14         "universe/metapackages";
  15         "multiverse/metapackages";
  16   };
  17 };