[Koha] Adventures upgrading Ubuntu

[Nombre]

Hello all...

I had Ubuntu 14.04 LTS with koha 16 installed as a local server to make
tests and personal training.

Today I've decided upgrade to Ubuntu 16 LTS, running update-manager, but
update-manager decide by itself to uninstall koha-common, why?. O.K. is
not an official package, but it's my package, please respect me and may
koha....

I've copied /etc/koha, var/lib/koha and /var/spool/koha and made a dump
from Maria-DB databases, and I'm waiting for upgrade finish.

I'll tell you about results...

Regards