目前有一套单实例gaussdb 100数据库，请问如何升级到最新版本。
参考文档《华为GaussDB 100 单机升级/降级工具upgrade.py》https://www.modb.pro/db/7185报错如下：

[omm@pr7 GaussDB_100_1.0.1-DATABASE-REDHAT-64bit]$ python upgrade.py -t pretest --package=/opt/software/GaussDB_100_1.0.1-DATABASE-REDHAT-64bit --backupdir=/home/omm/gaussbak --GSDB_HOME=/opt/gaussdb/app --GSDB_DATA=/opt/gaussdb/data 
Upgrade Failed: Path /opt/software/GaussDB_100_1.0.1-DATABASE-REDHAT-64bit is not a file!
[omm@pr7 GaussDB_100_1.0.1-DATABASE-REDHAT-64bit]$ python upgrade.py -t pretest --package=/opt/software/GaussDB_100_1.0.1-DATABASE-REDHAT-64bit/GaussDB_100_1.0.1-RUN-REDHAT-64bit.tar.gz --backupdir=/home/omm/gaussbak --GSDB_HOME=/opt/gaussdb/app --GSDB_DATA=/opt/gaussdb/data 
Upgrade Failed: Cannot find *RUN*.tar.gz in /home/omm/gaussbak/upgrade_backup/newpkg/GaussDB_100_1.0.1-RUN-REDHAT-64bit