[postgres@localhost PostgresForest-4.0.2]$ ./build.sh PostgreSQL version: 8.1 Applying lock-timeout support patch to pl/java. （中略） ln -s libforest_recovery.so.0.0 libforest_recovery.so [postgres@localhost PostgresForest-4.0.2]$ su パスワード:                                           ← rootユーザのパスワードを入力 [root@localhost PostgresForest-4.0.2]# ./install.sh PostgreSQL version: 8.1 （中略） =============================================== ====== All files installed successfully. ====== =============================================== [root@localhost PostgresForest-4.0.2]# exit           ← postgresユーザに戻ります exit