Oracle Error Message
ORA-06449: The list IO or the sysvendor is not installed.
Reason for the Error
ORACLE tries to use the sysvendor interface (INIT.ORA parameter use_sysvendor=true) but the UNIX kernel does not have the ORACLE sysvendor interface linked in.
Solution
Set use_sysvendor=false in INIT.ORA, if you don’t want to use this interface or link the UNIX kernel with this interface so that ORACLE can use it.