Onarchive problem on Informix-Online DSA 7.20

Hi, I working on migration from Informix-Online DSA 7.11 UC1 to Informix-Online DSA 7.20 UC2 running in Unisys OS SVR4 1.4. I had installed Informix 7.20 in a new directory by setting INFORMIXDIR to the new directory. I had also installed 7.20 to on my test server. I have the following questions regarding the migration :- 1. After installation, I found that "Informix-connect 7.20 UC2" and "Online-DS 7.20 UC2" are not writing their serial nos. in $INFORMIXDIR/etc/.snfile . Does it mean that my installation failed (but I did not get any errors during install). 2. sysmaster database is built when I go to Online mode from Quiescent mode. But migration manual says that it will be built when I issue "oninit -s" after install. 3. I ran all the "oncheck" consistency checking on my database and sysmaster, they ran fine. After that I started a Level=0 archive using On-Archive it failed with the following message in the oncatlgr.out.3250 : ********************* ONCATLGR ERROR ************************ Error from CAT_DBINTFC Module on : 12-MAR-1997:19:10:59 Working area number : 2 Working area status : READY Cursor Status # -284 Error Description : Error during call to Informix statement SELECT Function Name :CDI_CHECK_DBSET_ACTIVE Cursor database Comment : A subquery has returned not exactly one row. ******************* END OF REPORT ************************ In my archive script I am using the following command to do the archive :- IN_DBSPACE="rootdbs,dbspace1" IN_LEVEL=0 VSET_NAME=archvset ./onarchive "delete/dbspaceset=alldbs" ./onarchive "define/dbspaceset=alldbs/dbspace=(${IN_DBSPACE})" ./onarchive "archive/dbspaceset=alldbs/level=$IN_LEVEL/vset=$VSET_NAME /immediate/autovop" I would appreciate solutions for the above said problems. Plus I would like to know any bugs or changes to be taken care while migrating to Informix 7.20 UC2 from Informix 7.11 UC1. Venky