With alsactl from alsa-utils-1.2.7 there occur in
/var/log/boot.log
the messages
alsa-lib parser.c:2775:(load_toplevel_config) Unable to find the top-level configuration file '/usr/share/alsa/ucm2/ucm.conf'.
and
alsa-lib main.c:1542:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
There are at least three ways to handle them:
1) ignore them
2) install alsa-ucm-conf
when needed
3) replace alsactl restore
in
/etc/init.d/system.sh
by
alsactl --no-ucm restore