I am trying to create a custom bootable CentOS 7 ISO that boots from USB.
- I have downloaded the CentOS minimal DVD
I have used dd to put the ISO onto the thumbdrive:
dd if=CentOS-7-x86_64-Minimal-1511.iso of=/dev/sdb bs=4MB
I have tried multiple options to boot from DVD like changing boot order and disabling/enabling UEFI bios but it just does not boot from the thumb drive. The ISO works fine if I burn it to DVD.
What can I do to get it to boot?