A raid partition might not be shown to the recovery environment. This is normally because ACHI is controlling the disks and only the underlying separate disks are shown, not the raid partition. To work around this load the driver for the controller, remove the ACHI module then load the hpdsa module.
Load the recovery environment and open tools
Make a new folder to mount into
Run the mount command where the controller driver sits
Install the driver using the ‘rpm -i’ command
Ignore any warnings relating to ‘needs unknown symbol’
Remove AHCI and reload hpdsa using the following command:
rmmod ahci; modprobe hpdsa
Show disks to confirm
type ‘exit’ and close the terminal
Continue with the recovery in the normal way.