On Thu, Apr 15, 2010 at 7:55 PM, Saad Khan <saad4u@xxxxxxxxx> wrote: > > Any expert opinion folks?? > > I am not going to claim expert status on this - I've never seen the error. The context of the error though tells me that some process is attempting start the listener on port 1526, and there is already a process using port 1526 - probably the listener that is already running. Verify what processes are attached to the port with fuser. This must be run as root: fuser -v -n tcp 1526 example: fuser -v -n tcp 1521 here: 1521 USER PID ACCESS COMMAND 1521/tcp oracle 16134 f.... tnslsnr Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist Oracle Blog: http://jkstill.blogspot.com Home Page: http://jaredstill.com