Description of problem:
Sorry about the classification of this.  I didn't see Spacewalk anywhere in Bugzilla!  Anyway, on the webpage https://fedorahosted.org/spacewalk/wiki/OracleXeSetup#Install, the install instructions don't work as advertised.  There, it says
    "Configure the Oracle XE database by running
    # /etc/init.d/oracle-xe configure"
This did not set the system/sys name correctly.  Yes, I know, the oracle-xe command comes from Oracle themselves, but on my RHEL53 machine it just refused to set the password correctly.  Did I try to do it 10 times or more?  Yes I did, and it did not work at all.  Did I fat finger my password every single lousy time I tried it?  No I did not, for I was able to create my password as easy as you please using my workaround below.

Version-Release number of selected component (if applicable):
oracle-xe-univ-10.2.0.1-1.0
oracle-instantclient-basic-10.2.0.4-1
oracle-instantclient-sqlplus-10.2.0.4-1

How reproducible:
Every time.

Steps to Reproduce:
1.  Do this on RHEL53 x86_64.  Install the Oracle-XE software as listed.
2.  Follow the instructions on https://fedorahosted.org/spacewalk/wiki/OracleXeSetup#Install, up to and including the "Test Your Connection with SQLPlus" part.
3.  You fail to login.
  
Actual results:
Fail to login.

Expected results:
Successful login.

Additional info:
The workaround is to perform the following after running /etc/init.d/oracle-xe configure : 

su - oracle
. /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/oracle_env.sh
/usr/lib/oracle/10.2.0.4/client64/bin/sqlplus /NOLOG
CONNECT / AS SYSDBA
alter user sys identified by password;        
alter user system identified by password;
sqlplus64 'sys@xe as sysdba'