I have been trying to install Ubuntu 14.04 and 14.10 from a gorilla 32gb flash drive, it will install and on reboot if i take out the usb as the computer starts up i get a message telling me to insert the boot media and restart computer, if i leave the usb in, it ask if i want to try ubuntu, install, etc. i have tried using the livelinux, unetboot, and universal usb installer, and its all the same result. i have a 40gb drive that i am trying to use on my laptop Toshiba Satellite, i have a 500gb drive as well that came with the laptop but that one has windows 8.1, but i take that hard drive out to put in the 40gb drive, so i know that its not a conflict of operating systems. is there something that i am doing wrong, or have i forgot something some where? also when setting it up on the flash drive it asks me to set the persistance, and i set it to 4090mb. but it just will not keep the ubuntu os on reboot.
SnapOverflow
Make sure BIOS is set to legacy mode and is not in EFI mode and try running boot-repair from your installation live session USB (boot up using the USB to do the repair).
Use the 2nd option listed on the following page. http://help.ubuntu.com/community/Boot-Repair