I'm seeing the same problem, when reaching step 4/7 my prepare partition screen is blank. Removing the dmraid and simply going back (to step 3) and going forward again brought up the expected "Prepare disk space" screen on the installer.
My system has a single IDE CD-ROM drive. An SATA drive connected to SATA4 port. I have booted into a live 9.10-i386 from a USB flash drive. I've attached a sysinfo dump for reference. ** Attachment added: "sysinfo" http://launchpadlibrarian.net/35729940/sysinfo -- ubiquity partition step does not show some hard drives https://bugs.launchpad.net/bugs/459054 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs