Upgrade from 7.1 to 7.2 with reiserfs

Hi, have anybudy sucesfully upgraded from SuSE 7.1 to 7.2 with reiserfs? If I run the bootdisk for 7.2 created from ftp, I get the error message when it comes to the filesystem that the kernel does not support reiserfs. Since my filesystem with 7.1 is resierfs, I cannot upgrade? Does anybody know a solution? Thanks Akos