Found while attempting to build from source for the first time. https://sourceware.org/git/?p=lvm2.git;a=blob;f=INSTALL;h=8d0d54de333dbdf6a4fa040d6b87565c2e518229;hb=HEAD Line 27, should doc/example.conf be conf/example.conf instead?
In practice it's somewhat outdated - user should use: lvm dumpconfig --type default --unconfigured --withgeneralpreamble --withcomments --ignorelocal --withspaces to obtain runtime info. We are likely heading towards 'minimalistic' lvm.conf file in /etc/lvm dir, so we will see which approach would be the best. We might as well install this 'config' into doc dir of installed lvm2 package.