JoyLife

Yes，I think the usb flash drive is the best choice. Thank you very much!

But my mainboard is special，so the 2nd and 3rd SATA controller has only 4ports and 3ports(the 4th was bad) to DSM DISK 1-7.And the loader SSD is the minisata on mainboard at (0:1). I have 8 disks NAS,so I have to use the (0:0) SATA port to DSM DISK 8. I have did this: Keep my loader disk to position 0:1(it's the miniSATA port on my mainboard,so I can't move it.) SataPortMap=243 DiskIdxMap=070003(I'm using DS3617xs) now,the script is useful.and the loader is on DISK 9. In this situation，can I suppress the loader SSD? Or I have to use U-disk to make a loader?

I have used a SSD as loader,and it's on the controller port(0:1). My NAS has 3 controllers,so I set DiskIdxMap=070003 SataPortMap=143. The SSD loader is suppressed. and I can seethe disk 1-8 in my DSM correct. but when I update the DSM,it's failed by file is broken. And I use fixsynoboot.sh,it doesn't work yet. I reboot it,and use ls /dev/syno*.there isn't synoboot yet.I have check the file mod,it's OK. Then I set DiskIdxMap=070003 SataPortMap=243. the loader is disk 9,the script is useful.So I think if loader is suppressed,the script is not applied. Could you help me? How to make the script is useful and the SSD loader is suppressed too?