2.8.11 Install permissions on Ubunut Lucid 10.04 (solved)

built from revision 7387
After installing I got segfaults with preceding messages of missing permissions, even though having 0022 umask at sudo installation. After changing the appropriate permissions I still had segfault, but without any other significant error messages.
After some investigating, there were files under /etc/ardour2 without read permissions to others but root. After fixing this all was good.