I don't know if this is still relevant, but I encountered the same issue with the Dapper installer (with Ubuntu as well as Kubuntu, of course).
I wasn't looking at the LVM entry, but in order to get the RAID configuration entry to appear during the partitioning stage of installation, you have to create at least one partition and set it's usage (or file system, I forget) to RAID (again, I forget the exact text, but it's obvious once you see the menu - it's all that way at the bottom under all the various file system types you can choose). Once you set a given partition to be part of a RAID array, you'll get the "Configure RAID" menu item. -- Kubuntu Dapper Installer does not support MD devices https://launchpad.net/bugs/53633 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
