Computer won't boot into Linux ISO

[Budgetclocker]

Some background here:

 

This computer is one that I have continually been frustrated with, and given its age, I decided to install Ubuntu Linux on it after wiping the SSD. This is an OEM, by the way. Gateway DX4300-15e if you're asking. It has been a sort of project computer for me since my parents got rid of it (not my main rig).

 

I burned an Ubuntu ISO onto a blank DVD (I didn't have an empty USB drive sitting around to flash a disk image to) and attempted to boot. Instead of booting (yes, I did select the disk drive as the boot device instead of the SSD through the BIOS) it gave me a black screen, with a small thing at the bottom of the screen. It looked like a white stick figure and something else, I can't remember what.

 

Can anybody explain why it didn't boot?

[SupaKomputa]

Try Legacy boot option in the bios instead of UEFI.

[SupaKomputa]

https://help.ubuntu.com/community/UEFI

[NinJake]

If you got the latest Ubuntu iso you might want to try a Long Term Support build or another Linux distro as well. If you are willing to temporarily give up a USB, I'd try installing it that way too. (Just back up your USB data to your main computer and return it back after the install of Linux completes)