David Wright wrote: >> It seemed to install vmlinuz-4.9.0-5-686-pae (and associated config and >> image files, etc) in place of 4.9.0-4-686-pae versions. Now the system > > ↑↑↑↑↑↑↑↑↑↑↑ really? It's a different package so > it should install alongside the old one.
no, this is one and the same package - just a different debian revision - so the previous gets replaced AFAIK regards