=?GB2312?B?zfXP/ruq?= <jacob.xiaohua@xxxxxxxxx> writes: > /usr/local/pgsql/bin/postmaster -o "-i" -D /usr/local/pgsql/data That should be just /usr/local/pgsql/bin/postmaster -i -D /usr/local/pgsql/data You seem to be confusing pg_ctl syntax with postmaster syntax. regards, tom lane