[root@localhost ~]# yum list postgres\*
Loading "installonlyn" plugin
Setting up repositories
core                      100% |=========================| 1.1 kB    00:00     
updates                   100% |=========================| 1.2 kB    00:00     
extras                    100% |=========================| 1.1 kB    00:00     
Reading repository metadata in from local files
primary.xml.gz            100% |=========================| 1.5 MB    00:12     
################################################## 4778/4778
Installed Packages
postgresql.i386                          8.1.4-1.1              installed       
postgresql-libs.i386                     8.1.4-1.1              installed       
postgresql-python.i386                   8.1.4-1.1              installed       
postgresql-server.i386                   8.1.4-1.1              installed       
Available Packages
postgresql-contrib.i386                  8.1.4-1.1              core            
postgresql-devel.i386                    8.1.4-1.1              core            
postgresql-docs.i386                     8.1.4-1.1              core            
postgresql-jdbc.i386                     8.1.407-1jpp.4         core            
postgresql-odbc.i386                     08.01.0200-3.1         core            
postgresql-pl.i386                       8.1.4-1.1              core            
postgresql-tcl.i386                      8.1.4-1.1              core            
postgresql-test.i386                     8.1.4-1.1              core            
[root@localhost ~]# service postgresql start
Initializing database: mkdir: cannot create directory `/var/lib/pgsql/data/pg_log': File exists
                                                           [FAILED]
Starting postgresql service:                               [FAILED]