When I run 'resolvconf -u' I get a warning
/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /etc/resolvconf/run/resolv.conf
when I checked the file properties it appears to me that the symbolic link is point to somewhere different.
lrwxrwxrwx 1 root root 27 Jun 14 13:39 /etc/resolv.conf -> /run/resolvconf/resolv.conf