> > I did not find any code that would change the username and for recent > > years the setting has said "user = root", and before that it was > > "user = debian-sys-maint" > > This is (or used to be) the MySQL default. Is MySQL now also using the > socket authentication and root?
Yes, also MySQL in Debian/Ubuntu has also moved to passwordless root and no new install needs the debian.cnf file anymore. > > One option could potentially be that if dbconfig-common does not find > > the username, it could default to just "root". > > I guess that could work, if it works for MySQL as well. Or does MySQL > still always create the filled /etc/mysql/debian.cnf file? Yes, it will work for MySQL as well. However, I am now about to merge on master the following change: https://salsa.debian.org/mariadb-team/mariadb-10.5/-/commit/a6583c15226ad9a0ca37861e1bd01057bcff32a5 This would partially revert the debian.cnf change on new installs so that dbconfig-common can again find the username entry, while at the same time documenting that in the long run this file should be obsoleted.
