> root@foobar:~# /usr/lib/usrmerge/convert-usrmerge
>
> FATAL ERROR:
> Both /lib/udev/rules.d/60-libsane1.rules and /usr/lib/udev/rules.d/60-libsane1.rules exist.
The problem is that "usrmerge" needs to unify those two and doesn't
know how. So you need to do it by hand.
E.g. get rid of one of those two (or maybe if you can make
them 100% identical `usrmerge` will be happy as well).
Stefan