Fedora 19 missing disk in install

[David Highley]

We have an install issue we have not seen before. System is currently
running Fedora 18 x86_64. Hardware is Asus P6X58-E Pro motherboard with
an old 3Ware hardware raid system with two units. The current partition
where we want to do a fresh install to is sda and the other partition
with user data is sdb.

We are booting from a USB thumb drive that has been used to install
another test system and this is the method that Fedora 18 was installed
with.

We see that the partition sda is found or listed on the screen before we
get to the GUI mode. The issue is when we are in the GUI installer and
go to the storage the sda partition is not present but the sdb and the
thumb drive is shown as sdc are shown. We have found no way so far to
add or get that partition to show up for selection. Hence the install is
going no where.

Searches have found no posting of issues for this motherboard.