Oracle Net Configuration Assistant failed

Question

After installing Oracle Linux 6:

uname -a
Linux ponos 2.6.39-400.109.1.el6uek.x86_64 #1 SMP Tue Jun 4 23:21:51 PDT 2013 x86_64 x86_64 x86_64 GNU/Linux

and making sure that all the pre-required packages are present, I downloaded "Oracle Database 12c Release 1 (12.1.0.1.0) for Linux x86-64", followed the pre-installation instructions and launched the installer.

The installer runs smoothly up to the "Execute Root Scripts" step.

During the "Oracle Database configuration", the "Oracle Net Configuration Assistant" throws error:

[INS-20802] Oracle Net Configuration Assistant failed.

The error log is empty:

-rw-rw----. 1 oracle oinstall 1197690 Jul  8 14:45 installActions2013-07-08_02-18-05PM.log
-rw-rw----. 1 oracle oinstall       0 Jul  8 14:30 oraInstall2013-07-08_02-18-05PM.err
-rw-rw----. 1 oracle oinstall     114 Jul  8 14:30 oraInstall2013-07-08_02-18-05PM.out

Questions:

1. Has anyone encountered the same problem and managed to resolve it?
2. Is this configuration essential to install/run the database?

Answer 1

Without closing the installer, try to do retry. It should work second time.