yum upgrade -y yada yada yada ....
then lots of errors like:
/usr/share/gnome/help/gdm/fr/gdm.xml:173: parser error : Entity 'eacute' not defined
and so on until
Document is not well-formed XML: /usr/share/gnome/help/gdm/it/gdm.xml
Updating : amtu ##################### [173/520] Updating : grub ##################### [174/520] ...
Is this expected, acceptable, or a bomb waiting to go off later?