Originally Posted by linus72
and the difference is?
I dont care how it boots or who/what boots it as long as it boots
so, I dont even see your point?
Not to pick nits or derail the conversation, but if you have a system that's un-bootable due to a damaged hard drive, or one that is using full disk encryption that is currently inaccessible, or even one where you don't want to modify the existing hard drive, booting from SD by modifying the existing boot loader would be a problem.
It actually does matter on occasion. For example, we have laptops at my office that use a form of full disk encryption. When many of the drives got damaged due to a bad update, they were rendered completely unbootable. While we waited for that IT department to get around to fixing them, we were up and running via PenDriveLinux on a motley combination of SD cards and USB drives.