I just upgraded my XPS 13 laptop from Ubuntu 14.04 to 16.04. I wanted to use full disc encryption, so I chose to let the installer delete everything and install in an encrypted LVM. My laptop show me a message saying it can't find a boot option, something I now understand is because i deleted my /efi partition. I was unaware that there was such a thing as a UEFI partition, and i would like to restore it/create a new one but have NO idea how to do it in the easiest way. It works to use the legacy boot option, so the installation is working just fine as it is, it is just annoying to be forced to use the boot menu when starting the computer
I really don't feel like restore the 14.04 with the Dell tools and reinstall everything since i have not been able to get things such as swap work for encrypted computers without using the option to go full disc encryption in the installer. Would it maybe be possible to install the Dell restore disc along side 16.04, and then just delete it, let the /efi partition alone and reclaim the disc space into the 16.04 LVM.
As might be evident from my post, I am still very much a (happy) linux newbi