3707831 - DB6: Database seed mismatch. dbCfg->db_seed / file->dbSeed following a db2start.

Following an Operatiing System upgrade, db2start fails with errors
Database seed mismatch. dbCfg->db_seed / file->dbSeed 
DIA8414C Logging can not continue due to an error.

The db2diag.log reports call stack. 

2026-01-25-08.37.36.611849+120 I280146513E2818       LEVEL: Error
PID     : XXXXX               TID : XXXXXPROC : db2sysc 0
INSTANCE: db2<sid> NODE : 000            DB   : XXX
APPHDL  : 0-7                  APPID: *LOCAL.XXXXXXXXXXX
AUTHID  : DB2<SID>               HOSTNAME: XXXXXXXXXXX
EDUID   : 00                  EDUNAME: db2agent 0
FUNCTION: DB2 UDB, data protection services, sqlpMasterDbcb::sqlpgOpenAndLoadGLFH, probe:258
MESSAGE : ZRC=0x8610000D=-2045771763=SQLP_BADLOG "Log File cannot be used"
          DIA8414C Logging can not continue due to an error.
DATA #1 : String, 54 bytes
Database seed mismatch. dbCfg->db_seed / file->dbSeed:
DATA #2 : unsigned integer, 4 bytes
2629966936
DATA #3 : unsigned integer, 4 bytes
3646362030
CALLSTCK: (Static functions may not be resolved correctly, as they are resolved to the nearest symbol)
  [0] 0x00007F60D4C3EBA3 _Z25sqlpgValidateDbSeedInFileI9SQLP_GLFHEiPK9SQLP_DBCBPKT_j + 0x1A3
  [1] 0x00007F60D4C3F649 _ZN14sqlpMasterDbcb20sqlpgOpenAndLoadGLFHEv + 0x1F9
  [2] 0x00007F60D4C3F80F _ZN14sqlpMasterDbcb31sqlpgOpenAndLoadLogControlFilesEv + 0x2F
  [3] 0x00007F60D4A8B891 _Z8sqlpinitP8sqeAgentP16sqeLocalDatabaseP5sqlcam + 0x5E1
  [4] 0x00007F60D2375782 _Z8sqledintP8sqeAgentP16sqeLocalDatabaseP5sqlcacPciPbm + 0xD42
  [5] 0x00007F60D2396593 _ZN16sqeLocalDatabase12FirstConnectEP8SQLE_BWARcP8sqeAgentP8sqlo_gmtiiPb + 0x7CC3
  [6] 0x00007F60D2358E86 _ZN8sqeDBMgr23StartUsingLocalDatabaseEP8SQLE_BWAP8sqeAgentRccP8sqlo_gmtPb + 0x14D6
  [7] 0x00007F60D222E2E8 _ZN14sqeApplication13AppStartUsingEP8SQLE_BWAP8sqeAgentccP5sqlcaPc + 0x808
  [8] 0x00007F60D223554B _Z22sqleProcessConnectTypeP14db2UCinterfaceP8SQLE_BWAP8sqeAgentP5sqlcaP22SQLELOST_STATUS_VECTOR + 0x8B
  [9] 0x00007F60D2236B4B _ZN14sqeApplication13AppLocalStartEP14db2UCinterface + 0x7BB
  [10] 0x00007F60D2649881 _Z11sqlelostWrpP14db2UCinterface + 0x41
  [11] 0x00007F60D2648A55 _Z14sqleUCengnInitP14db2UCinterfacet + 0x715
  [12] 0x00007F60D264D4EF sqleUCagentConnect + 0x30F
  [13] 0x00007F60D29751A3 _Z18sqljsConnectAttachP13sqljsDrdaAsCbP14db2UCinterface + 0x233
  [14] 0x00007F60D28E4A4D _Z16sqljs_ddm_accsecP14db2UCinterfaceP13sqljDDMObject + 0x6D
  [15] 0x00007F60D28D0638 _Z17sqljsParseConnectP13sqljsDrdaAsCbP13sqljDDMObjectP14db2UCinterface + 0x2A8
  [16] 0x00007F60D28D324A _Z10sqljsParseP13sqljsDrdaAsCbP14db2UCinterfaceP8sqeAgentb + 0x83A
  [17] 0x00007F60D28CA3C1 /db2/db2i65/sqllib/lib64/libdb2e.so.1 + 0x9DB23C1
  [18] 0x00007F60D28CE2F4 _Z17sqljsDrdaAsDriverP18SQLCC_INITSTRUCT_T + 0xCB4
  [19] 0x00007F60D22019E9 _ZN8sqeAgent6RunEDUEv + 0x669
  [20] 0x00007F60D65A0A74 _ZN9sqzEDUObj9EDUDriverEv + 0x1A4
  [21] 0x00007F60D47FA339 sqloEDUEntry + 0x2A9
  [22] 0x00007F60DB84B1CA /lib64/libpthread.so.0 + 0x81CA
  [23] 0x00007F60C785F953 clone + 0x43

2026-01-25-08.37.36.611849+120 I280146513E2818       LEVEL: Error
PID     : XXXXX               TID : XXXXXPROC : db2sysc 0
INSTANCE: db2<sid> NODE : 000            DB   : XXX
APPHDL  : 0-7                  APPID: *LOCAL.XXXXXXXXXXX
AUTHID  : DB2<SID>               HOSTNAME: XXXXXXXXXXX
EDUID   : 00                   EDUNAME: db2agent 0
FUNCTION: DB2 UDB, data protection services, sqlpMasterDbcb::sqlpgOpenAndLoadGLFH, probe:1175
MESSAGE : ZRC=0x8610000D=-2045771763=SQLP_BADLOG "Log File cannot be used"
          DIA8414C Logging can not continue due to an error.

Db2 LUW IBM

bad log, corruption, inconsistency, db2 configure CFG, copy, upgrade, mismatch, not matched , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem