I am trying to run Fedora 20 (
Fedora-Live-Desktop-x86_64-20-1.iso) from an USB stick on my laptop.
Unfortunately I keep running into these warnings:
Warning: dracut: Fatal: CD check failed! Warning: dracut: Refusing to continue Warning: /dev/mapper/live-rw does not exist
Then it enters some kind of emergency mode and allows me to use the dracut command line.
I have tried both UNetbootin and dd to create the bootable USB from my current Ubuntu 12.04.
sudo dd if=Fedora-Live-Desktop-x86_64-20-1.iso of=/dev/sdb bs=8M && sync
I used both 4M and 8M for the
bs value. For 8M this results in:
10+1 records in 10+1 records out 87397591 bytes (87 MB) copied, 18.5976 s, 4.7 MB/s
Which seems far too low to me.