ERROR: could not insert 'floppy': No such device
Loading Fedora 17 x86_64 installer...
dracut Warning: Unable to process initqueue
dracut Warning: /dev/disk/by-label/Fedorax2017x20x86_64 does not exist
dracut Warning: /dev/mapper/live-rw does not exist
Dropping to debug shell.
dracut:/#
$ yum install mtools (or, apt-get install mtools)
$ sudo echo "mtools_skip_check=1" > ~/.mtoolsrc
$ sudo mlabel -i /dev/sdX1 ::FC17 (the '::' prefix is a must!)