Admin server doesnt start...

Question

I am getting the following exception, please help. I have tried putting the user name and password in boot.properties file but it didnt help me.
####<May 26, 2011 7:56:14 AM CEST> <Critical> <WebLogicServer> <tna-06-7437> <AdminServer> <main> <<WLS Kernel>> <> <> <1306389374937> <BEA-000386> <Server subsystem failed. Reason: weblogic.security.SecurityInitializationException: User weblogic is not permitted to boot the server; The server policy may have changed in such a way that the user is no longer able to boot the server.Reboot the server with the administrative user account or contact the system administrator to update the server policy definitions.
weblogic.security.SecurityInitializationException: User weblogic is not permitted to boot the server; The server policy may have changed in such a way that the user is no longer able to boot the server.Reboot the server with the administrative user account or contact the system administrator to update the server policy definitions.
     at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.doBootAuthorization(CommonSecurityServiceManagerDelegateImpl.java:1009)
     at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.initialize(CommonSecurityServiceManagerDelegateImpl.java:1050)
     at weblogic.security.service.SecurityServiceManager.initialize(SecurityServiceManager.java:875)
     at weblogic.security.SecurityService.start(SecurityService.java:141)
     at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
>
####<May 26, 2011 7:56:14 AM CEST> <Notice> <WebLogicServer> <tna-06-7437> <AdminServer> <main> <<WLS Kernel>> <> <> <1306389374953> <BEA-000365> <Server state changed to FAILED>
####<May 26, 2011 7:56:14 AM CEST> <Error> <WebLogicServer> <tna-06-7437> <AdminServer> <main> <<WLS Kernel>> <> <> <1306389374953> <BEA-000383> <A critical service failed. The server will shut itself down>
####<May 26, 2011 7:56:14 AM CEST> <Notice> <WebLogicServer> <tna-06-7437> <AdminServer> <main> <<WLS Kernel>> <> <> <1306389374953> <BEA-000365> <Server state changed to FORCE_SHUTTING_DOWN>
####<May 26, 2011 7:56:14 AM CEST> <Info> <WebLogicServer> <tna-06-7437> <AdminServer> <main> <<WLS Kernel>> <> <> <1306389374953> <BEA-000236> <Stopping execute threads.>

Answer 1

You probably changed the roles of the admin user, maybe you used something like:
sr = cmo.getSecurityConfiguration().getDefaultRealm();
rm = sr.lookupRoleMapper('XACMLRoleMapper');
expr = rm.getRoleExpression(None,'Admin');
print expr;
rm.setRoleExpression(None,'Admin',expr+'|Usr(employee)');and forgot to add the old groups and users to the admin role.
You can try editing your boot.properties and enter a valid user which has the admin role.
The boot.properties file is locate in the <domain-home>/servers/AdminServer/security directory.
If this does not help, you can use the embedded LDAP backup files, locate in the <domain-home>/servers/AdminServer/data/ldap/backup.
Replace the existing files (in the /data/ldap/ldapfiles directory) with the backed-up ones.
Or delete the whole ldap directory and let the files be re-created on server start-up