Hi, > does anyone install the oracle on the centos? > I try to install the oracle on my computer. but fail. > It has problem on kernel setting and add the swap disk. You should follow the Oracle installation guide. http://download.oracle.com/docs/cd/B28359_01/install.111/b32285/toc.htm Mind you, as far as I know Oracle is not supported on CentOS so if you run into problems with your databases, you're stuck. On the other hand, we have plenty of development environments (Centos 4 and 5) running Oracle 10g and 11g w/o any issues. For production, you should have RHEL or OEL for support. -- Hakan (m1fcj) - http://www.hititgunesi.org