oracle 7.3.4 under sco 5.06 problems!!!一定要手动建库吗？

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oracle7:/home2/oracle/dbs>;svrmgrl

Oracle Server Manager Release 2.3.4.0.0 - Production

Copyright (c) Oracle Corporation 1994, 1995. All rights reserved.

Oracle7 Server Release 7.3.4.0.0 - Production
PL/SQL Release 2.3.4.0.0 - Production

SVRMGR>; connect internal/oracledba
Connected to an idle instance.
SVRMGR>; startup nomount pfile="/home2/oracle/dbs/initora734.ora"
ORA-07311: smsdes: name translation failure of sgadef.dbf file name.
Additional information: 7200
ORA-07300: smscre: translation error while expanding ?/dbs/sgadef@.dbf.
Additional information: 7200
SVRMGR>;