It isn't wrongly identifying; your laptop is booting the cd in UEFI mode. You need to get it to boot the cd in bios mode if you don't want to use UEFI.
** Changed in: ubiquity (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/953959 Title: Ubiquity fails to install Grub in Precise if bios efi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/953959/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs