Hi all,

I am trying to upgrade Oracle 8.1.7 to Oracle 9.2 using database upgrade assistant and while doing that I am getting error at final Step 4 after clicking the Finish button error msg is :

"90MB of Free disk space not available at F:\ORANT9\oradata\ORCL" to create the "ODMA_RBS" tablespace for rollback undo mode duting upgrade.Provide the required free disk space on the disk"

Althoug there is Gigs of disk space available I don't know why is it giving this error! Can any one help? to give u more info I have upgraded my OS from Windows NT SP5 to Windows 2K SP2 does this due to OS or am i doing something wrong?
Can anyone help me out?
Thanks in advance,