sudo apt-get install mariadb-server

例えば、/home/scott で、

tar xvfj phpBB-phpBB-3.0.12.tar.bz2
unzip japanese_1_0_5.zip

cp -r japanese_1_0_5/language phpBB3
cp -r japanese_1_0_5/styles phpBB3

cd /var/www
ln -s /home/scott/phpBB3 .