I can boot Linux from USB hdd & ssd (SAMSUNG,INTEL,WD & others), USB flashdrive(ADATA,KINGSTON - & almost all) ,but I cant boot Linux from “Sandisk Extreme USB”
Kernel freezes after message - “Mounted rootfs” …
It was my mistake in Linux setup.
There is nothing special to “Boot Linux from “Extreme USB” flash drive” .
That flash drive can boot Linux without problems, just follow generic procedure.
Or, you can also use a free program called uNetBootin. It’s a simple tool that can do this job for you for free. 
Apparently nils doesn’t need a tool, he knows what he is doing.
