Comment 5 for bug 1507448

I'm writing in to confirm that this problem persists in Kubuntu 16.04.1. I used a bootable Kubuntu usb key to install Kubuntu to an external drive, and the installer trashed my grub configuration on an *unrelated* internal Fedora hard drive.

Workaround in case anybody sees this: unplug any hard drives that you don't want the Kubuntu installer to touch prior to doing your install....