[SOLVED] Help Installing Mageia 5

Well y'all, I'm at a loss.
I am trying to install Mageia 5 on my new computer (Dell XPS 13 developer edition) and something just keeps going wrong. I will add this is my first attempt to install a distro as the sole OS on a computer, as opposed to dual-booting it with a PC, so maybe that has something to do with it. Also as a disclaimer I'm not a particularly advanced user, been getting into it the last couple years, but forgive my many novice instances of ignorance if you would be so kind.
In short, I go through the installation (from a DVD) and when it tells me everything is fine and dandy and all I need to do is to reboot and enjoy Mageia. I do so and my hopes and dreams are soon crushed. All I get is this anticlimactic message:
"No bootable devices found.
Press F1 key to retry boot.
Press F2 key for setup utility.
Press F5 key to run onboard diagnostics."
And that's that. When I go to the setup area the boot sequence area is completely empty and blank and there are no boot options.
One suspicion/fear I have is that when it got to the partitioning section I first did the option of "Erase all and just use Mageia" or something like that, as it is my intention to replace the default Ubuntu that came on the computer with Mageia 5. I am a little scared this might have deleted stuff I might actually need (if so I don't know why that would be an option in that form, but even so...). Could this have possibly deleted some sort of boot device that was attached to Ubuntu? Like I said I am a bit more on the novice side, and my previous experience was installing distros in partitioned space alongside Windows, so I am a little lost here.
Also on repeated attempts I tried to partition the stuff manually following a couple guides online and youtube video (https://www.youtube.com/watch?v=cSLw6x3pIaU). The guide I read said one of the partitions needs to be an ESP partition focused on EFI/boot or whatever the term is. I tried that in a couple different ways, nothing changed anything. The youtube video simply partitions two things, one to "/" and the other a "swap". No /home or ESP, yet somehow the video goes on and it reboots like my hopes and dreams hoped and dreamed it would. I tried this, and it told me there has to be an ESP, which makes sense, but I am confused how youtube person wasn't told this and on top of that everything worked.
Anyway, after a few more tries I cleared everything and went back and chose the "Use Free Space" option, of which all would be Mageia. This apparently partitions everything itself from the available space, which would be all of it in my case. I'd hoped this would just automatically do whatever it was I am missing, yet still my hopes and dreams died again promptly upon reboot.
So, everyone, why isn't Mageia 5 installing correctly? Where is it when it comes time to boot? Why is there absolutely nothing when it comes time to boot? What am I doing wrong? Did I screw everything up? I just want to happily use Mageia, please help!
:'(
I am trying to install Mageia 5 on my new computer (Dell XPS 13 developer edition) and something just keeps going wrong. I will add this is my first attempt to install a distro as the sole OS on a computer, as opposed to dual-booting it with a PC, so maybe that has something to do with it. Also as a disclaimer I'm not a particularly advanced user, been getting into it the last couple years, but forgive my many novice instances of ignorance if you would be so kind.
In short, I go through the installation (from a DVD) and when it tells me everything is fine and dandy and all I need to do is to reboot and enjoy Mageia. I do so and my hopes and dreams are soon crushed. All I get is this anticlimactic message:
"No bootable devices found.
Press F1 key to retry boot.
Press F2 key for setup utility.
Press F5 key to run onboard diagnostics."
And that's that. When I go to the setup area the boot sequence area is completely empty and blank and there are no boot options.
One suspicion/fear I have is that when it got to the partitioning section I first did the option of "Erase all and just use Mageia" or something like that, as it is my intention to replace the default Ubuntu that came on the computer with Mageia 5. I am a little scared this might have deleted stuff I might actually need (if so I don't know why that would be an option in that form, but even so...). Could this have possibly deleted some sort of boot device that was attached to Ubuntu? Like I said I am a bit more on the novice side, and my previous experience was installing distros in partitioned space alongside Windows, so I am a little lost here.
Also on repeated attempts I tried to partition the stuff manually following a couple guides online and youtube video (https://www.youtube.com/watch?v=cSLw6x3pIaU). The guide I read said one of the partitions needs to be an ESP partition focused on EFI/boot or whatever the term is. I tried that in a couple different ways, nothing changed anything. The youtube video simply partitions two things, one to "/" and the other a "swap". No /home or ESP, yet somehow the video goes on and it reboots like my hopes and dreams hoped and dreamed it would. I tried this, and it told me there has to be an ESP, which makes sense, but I am confused how youtube person wasn't told this and on top of that everything worked.
Anyway, after a few more tries I cleared everything and went back and chose the "Use Free Space" option, of which all would be Mageia. This apparently partitions everything itself from the available space, which would be all of it in my case. I'd hoped this would just automatically do whatever it was I am missing, yet still my hopes and dreams died again promptly upon reboot.
So, everyone, why isn't Mageia 5 installing correctly? Where is it when it comes time to boot? Why is there absolutely nothing when it comes time to boot? What am I doing wrong? Did I screw everything up? I just want to happily use Mageia, please help!
:'(