I've had such crash before using Kubuntu 12.04 or 12.04.1 also Mint 13 KDE. My observation was that it happened only when I had more than one hard disks available the installer.
My workaround: - Attach only the disk that you want to install Kubuntu on - Install Kubuntu - Attach the other harddisks -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to ubiquity in Ubuntu. https://bugs.launchpad.net/bugs/1038522 Title: [kde] manual partitioning in installer crashes when handling many partitions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1038522/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs