oninit error. Oline Workgroup Server for SCO Open Server 5.0.4

Hello, I have problems with Informix Online Workgroup Server 7.22.UC5 for SCO Open Server 5. I do the following: login: root password: xxx # cd /u/informix # . ./ifmx.sh # oninit oninit: Cannot open chunk '/u/IFMXDATA/bdatos/ROOTDBS.000'. errno = 4oninit: Fatal error in shared memory initialization # The online.log file: Wed Sep 9 20:04:41 1998 20:04:41 Event alarms enabled. ALARMPROG = '/u/informix/etc/log_full.sh' 20:04:45 DR: DRAUTO is 0 (Off) 20:04:46 chunk failed sanity check 20:04:48 I/O error, Primary Chunk '/u/IFMXDATA/bdatos/ROOTDBS.000' -- Offline (sanity) 20:04:48 INFORMIX-OnLine Stopped. 20:04:48 mt_shm_remove: WARNING: may not have removed all/correct segments Please, help me to cofigure correctly my server. Tank you very much. Regards, Francisco Cerd'n. My configuration files are: ifmx.sh INFORMIXDIR=/u/informix ONCONFIG=onconfig.ows INFORMIXSERVER=bdatos_shm INFORMIXSQLHOSTS=/u/informix/etc/sqlhosts INFORMIXTERM=terminfoTERMINFO=/usr/share/lib/terminfo PATH=.:/u/informix/bin:/u/informix/bin:.:/usr/ccs/bin:/usr/ccs/lib:/bin:/usr/bin:/usr/sbin:/usr/etc:/usr/ucb export INFORMIXDIR INFORMIXSERVER ONCONFIG INFORMIXSQLHOSTS PATHINFORMIXTERM TERMINFO onconfig.ows #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.ows # Description: INFORMIX-OnLine Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /u/IFMXDATA/bdatos/ROOTDBS.000 ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 20000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS rootdbs # Location (dbspace) of physical log PHYSFILE 2000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 6 # Number of logical log files LOGSIZE 1000 # Logical log size (Kbytes) # Diagnostics MSGPATH /u/informix/etc/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /u/informix/etc/log_full.sh # Alarm program path # System Archive Tape Device TAPEDEV /dev/null TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 10240 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/null LTAPEBLK 16 # Log tape block size (Kbytes) LTAPESIZE 10240 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # INFORMIX-OnLine/Optical staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a OnLineinstance DBSERVERNAME bdatos # Name of default database server DBSERVERALIASES bdatos_shm # List of alternate dbservernames NETTYPE tlitcp,1,, NETTYPE ipcshm,1,, DEADLOCK_TIMEOUT 60 # Max time to wait of lock in distributed env. RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 0 # 0 for single-processor, 1 formulti-processor NUMCPUVPS 1 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps toone NOAGE 0 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 2000 # Maximum number of locks BUFFERS 200 # Maximum number of shared buffers NUMAIOVPS # Number of IO vps PHYSBUFF 32 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes)LOGSMAX 6 # Maximum number of logical log files CLEANERS 1 # Number of buffer cleaner processes SHMBASE 0x10000000L # Shared memory base address SHMVIRTSIZE 8000 # initial virtual shared memory segment size SHMADD 8192 # Size of new shared memory segments (Kbytes) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 300 # Check point interval (in sec) LRUS 8 # Number of LRU queues LRU_MAX_DIRTY 60 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 50 # LRU percent dirty end cleaning limit LTXHWM 50 # Long transaction high water markpercentage LTXEHWM 60 # Long transaction high water mark (exclusive) TXTIMEOUT 300 # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) # System Page Size # BUFFSIZE - OnLine no longer supports this configuration parameter. # To determine the page size used by OnLine on your platform # see the last line of output from the command, 'onstat -b'. # Recovery Variables # OFF_RECVRY_THREADS: # Number of parallel worker threads during fast recovery or an offline restore. # ON_RECVRY_THREADS: # Number of parallel worker threads during an online restore. OFF_RECVRY_THREADS 10 # Default number of offline worker threads ON_RECVRY_THREADS 1 # Default number of online worker threads # Data Replication Variables # DRAUTO: 0 manual, 1 retain type, 2 reverse type DRAUTO 0 # DR automatic switchover DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec)DRLOSTFOUND /usr/informix/etc/dr.lostfound # DR lost+found file path # Read Ahead Variables RA_PAGES # Number of pages to attempt to read ahead RA_THRESHOLD # Number of pages left before next group # DBSPACETEMP: # OnLine equivalent of DBTEMP for SE. This is the list of dbspaces # that the OnLine SQL Engine will use to create temp tables etc. # If specified it must be a colon separated list of dbspaces that exist # when the OnLine system is brought online. If not specified, or if # all dbspaces specified are invalid, various ad hoc queries will create # temporary files in /tmp instead. DBSPACETEMP # Default temp dbspaces # DUMP*: # The following parameters control the type of diagnostics information which # is preserved when an unanticipated error condition (assertion failure) occurs # during OnLine operations. # For DUMPSHMEM, DUMPG