So I have a laptop running Backtrack 5 R3 using LUKS and LVM, manually configured, and I'm trying to install Ubuntu 12.10 to a USB 3 external drive and use LUKS and LVM on that as well, but I can't seem to get the automated installer to default to my external drive instead of trying to overwrite my BT5 installation, and while it gives me the option to install alongside it, I'd prefer to just install to the external drive for portability without having to do the fancy LUKS and LVM manual config I had to do with the internal BT installation, plus I don't know if the installer would realize it's an unlocked LUKS container and not try to unmount it if I tried to do automated side-by-side installation on the internal drive. Do I have to just remove the internal disk so it won't recognize it during installation?
Thanks, Dom