On Sun, 18 Oct 2015 17:17:52 -0700 (PDT), ray <ray@aarden.us> wrote: > I have stretch installed on a Toshiba and I am not able to reinstall it. > The first instance was installed using the BIOS mode CSM. I want to > reinstall using UEFI. Why do you want UEFI? You've got a working installation from CSM.