I followed this <https://www.debian.org/releases/stable/i386/ch04s03.html.de> tutorial, preparing a usb stick to copy a debian 8-sid. I umounted the stick (as recommended), but got the message
no medium found: /dev/sdb but when I .. #cp debian-testing-amd64-netinst.iso /dev/sdb; sync everything is being copied, stick will be recognized, but unfortunately it's not bootable ;-(( What did I do wrong? Best regards Christoph Koydl, Berlin