Hi folks,

I've been going through an upgrade process to get 1.2rc1 testing underway; but I can't seem to get the xwiki database correctly updated.

So far I've run down the usual avenues:

The previous version being run was 1.1.2
This is not a problem if I create a new database (create empty db and let xwiki generate tables/etc); only when I expect the database to be upgraded.

I'm almost certain to be missing some crucial step, but can't for the life of me think of what?

Error Log from tomcat log file
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17:18:08,896 [http://ieg08ap02:8080/xwiki/bin/view/Main/WebHome] [http-8080-1] WARN  util.JDBCExceptionReporter      - SQL Error: 1146, SQLState: 42S02

17:18:08,896 [http://ieg08ap02:8080/xwiki/bin/view/Main/WebHome] [http-8080-1] ERROR util.JDBCExceptionReporter      - Table 'xwiki.xwikidbversion' doesn't exist

17:18:08,912 [] [http-8080-1] WARN  action.RequestProcessor         - Unhandled Exception thrown: class com.xpn.xwiki.XWikiException

17:25:54,208 [http://ieg08ap02:8080/xwiki/bin/view/Main/WebHome] [http-8080-1] WARN  util.JDBCExceptionReporter      - SQL Error: 1, SQLState: HY000

17:25:54,208 [http://ieg08ap02:8080/xwiki/bin/view/Main/WebHome] [http-8080-1] ERROR util.JDBCExceptionReporter      - Can't create/write to file '#sql_fc0_0.MYD' (Errcode: 17)

17:25:54,208 [http://ieg08ap02:8080/xwiki/bin/view/Main/WebHome] [http-8080-1] ERROR store.XWikiHibernateBaseStore   - Failed creating schema update script

org.hibernate.exception.GenericJDBCException: could not get table metadata: feeds_aggregatorgroup
        at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:91)
        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:79)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
        at org.hibernate.tool.hbm2ddl.DatabaseMetadata.getTableMetadata(DatabaseMetadata.java:100)
        at org.hibernate.cfg.Configuration.generateSchemaUpdateScript(Configuration.java:838)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.getSchemaUpdateScript(XWikiHibernateBaseStore.java:361)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.updateSchema(XWikiHibernateBaseStore.java:249)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.updateSchema(XWikiHibernateBaseStore.java:225)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.checkHibernate(XWikiHibernateBaseStore.java:470)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:914)
        at com.xpn.xwiki.store.XWikiHibernateBaseStore.executeRead(XWikiHibernateBaseStore.java:947)
        at com.xpn.xwiki.store.migration.hibernate.XWikiHibernateMigrationManager.getDBVersion(XWikiHibernateMigrationManager.java:60)

        at com.xpn.xwiki.store.migration.AbstractXWikiMigrationManager.startMigrationsForDatabase(AbstractXWikiMigrationManager.java:140)

        at com.xpn.xwiki.store.migration.AbstractXWikiMigrationManager.startMigrations(AbstractXWikiMigrationManager.java:102)

        at com.xpn.xwiki.XWiki.initXWiki(XWiki.java:708)
        at com.xpn.xwiki.XWiki.<init>(XWiki.java:659)
        at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:241)
        at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:426)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:94)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.sql.SQLException: Can't create/write to file '#sql_fc0_0.MYD' (Errcode: 17)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2934)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1616)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1708)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:3249)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:3178)
        at com.mysql.jdbc.Statement.executeQuery(Statement.java:1203)
        at com.mysql.jdbc.DatabaseMetaData$2.forEach(DatabaseMetaData.java:2382)
        at com.mysql.jdbc.DatabaseMetaData$IterateBlock.doForAll(DatabaseMetaData.java:76)
        at com.mysql.jdbc.DatabaseMetaData.getColumns(DatabaseMetaData.java:2256)