SirElderberry wrote:Thanks for the help, guys. I am installing 64-bit so I imagine that the DVDs omitting UEFI support is my issue. At this point I think I'm just going to wait until an updated ISO is released. When it is, will I need to reinstall from scratch or can I just reinstall grub?
If the install is clean, then re-installing GRUB should be all you need to do; however, if that's the case, there's little reason to wait for a new Mint disc. You can install an EFI-enabled version of GRUB, or another EFI boot loader, manually -- see my Web page on the topic
for details, or this Ubuntu page
for more details on GRUB specifically. This will get your Mint up and running more quickly, and you may learn more in the process. Waiting may produce an easier path to get things working, but maybe not. If it does go easily, you won't learn as much in the process.
Note that my comments about Secure Boot apply in either case, although if the Mint developers have signed up with Microsoft's/Verisign's signing service, disabling Secure Boot might not be necessary if you install a Mint boot loader. I don't happen to know if they've done this, though. (Ubuntu has, and both Fedora and SUSE plan to do so, but I don't know about Mint.)