I have put linux on 2 different usb devices. One is a USB disk drive, and i put linux on a cd. The other is a usb hard drive dock, in which i put a usb hard drive. Whenever I try to boot from either of these devices, i get the windows boot manager saying thee boot media was not found. My bios is set to ufei/legacy. How do I get past the windows boot manager to get to grub? Is there something wrong with my bios settings, or is there something wrong with both my usb boot medias?