Fedora refuses to boot from external USB FDD after succeeding many times.
I have Fedora 20 on a 120Gb Usb disk which I have been using on a Windows 7 laptop for some time (over a year). Now it will not boot successfuly. When I take the Windows disk out and put the 'USB' disk in its place Fedora works perfectly. Admittedly it only takes a few minutes to change the two disks over but it is still irritating - one day I am going to lose those tiny screws!
The boot fails with messages from dracut-initqueue [203] /dev/fedora/root does not exist /dev/fedora/swap does not exist /dev/mapper/fedora-root does not exist
but clearly they must exist since it does boot when inside the laptop case!
FDD = Floppy Disk Drive. I don't think you're doing that :) Anyway, could you update your question with the contents of
/etc/fstab
from Fedora?