Re: UEFI: Need to dual boot Mint on Asus G75 from 2012
If you don't need secure boot, just disable it. The "secure" part of it was broken immediately but the annoying part persists.
If you have to use it use the actual Debian installer (netinstall or full) keep secure boot active, create an EFI partition (VFAT, ~10MB) during the "partitioning" part of the install (where you might have to resize the existing system partitions or wipe the "recovery" partion) and let the installer do the rest of the job. In the best case everything will run just fine. Otherwise you might have to jump into "boot options" from the BIOS' startup and try which partition to boot. There are some quite detailled HOWTOs on the net, BTW.