Hi Peter
I have managed to create the USB now but I can only get it to see the 1 HDD I think it was this part
After find.synology.com, you may not be able to find the SATA HDD during DSM installation.
The following is an example when a 6-port SATA expansion card is installed.
SataPortMap = "46",
DiskIdxMap = "0000"
I have 6 HDD connected to my Motherboard it is a ASUS P6X58D-E. looks like its a Marvell controller they all show up in bios
can I edit any of the files to get them to show up now or do I have to start again?
Thank you once again for all your help
Regards
Mike