Hi, I am using Redhat linux 9. At the time of instllation i omitted the option of SQL server. AFter installing Linux 9 i started installing postgresql 7.4.5. After installing i am unable to enter into the path root$ su postgres su: user postgres does not exist Note: At the time of installing itself i get problem while setting permission as root& chown postgres.postgres /usr/local/pgsql/ chown: `postgres.postgres': invalid user Even if i tried the postgres --version i am getting output as root$ postgres --version postgres (PostgreSQL) 7.4.5 Please help me to enter into $ su postgres -- Warm Regards, S.ElayaRaja Mobile: (+91) 98450 59540 E-Mail: elayaraja.s@xxxxxxxxx raja_nk@xxxxxxxxxxx ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings