Main Installation Destination Missing

Hi all,

I have a custom manufactured board with an on-board USB slot which I am using to install a CentOS 7 DVD ISO. The board interfaces with a standard Q7 SOM which I am looking to install CentOS onto. I have had success with this ISO on a separate platform. I get to the install screen but cannot find an installation destination other than the USB I am loading the ISO from.

[anaconda root@localhost /]# dmesg | grep mmc
mmc0: SDHCI controller on PCI [0000:00:1b.0] using ADMA
mmc1: SDHCI controller on PCI [0000:00:1c.0] using ADMA
mmc1: unrecognised EXT_CST revision 8
mmc1: error -22 whilst initializing MMC card
mmc1: unrecognised EXT_CST revision 8
mmc1: error -22 whilst initializing MMC card
mmc1: unrecognised EXT_CST revision 8
mmc1: error -22 whilst initializing MMC card
mmc1: unrecognised EXT_CST revision 8
mmc1: error -22 whilst initializing MMC card
[anaconda root@localhost /]#

Thanks!