Issue with reinstall live image to same disk

[David Highley]

Installed Fedora 21 live image to disk. Now we want to reinstall to the
same disk but it does not show up in the storage selection. Wiped
partitions with fdisk hoping that would make it work. Next cat'd file to
raw device to wipe or corrupt the MBR. Still no joy. How in H do you get
the live image installer to find the disk you want to install to? Bye
the way this is not a new issue as we have run into this problem in the
past but never found a solution to it. We always had to go to another
install method which is very painful and time consuming.