d0man

I can confirm this has worked like a charm , no need having clean drive and swaping installation drives , this did not worked for me at all. simply boot your NAS with GParted live usb or similar ,and format each 2.37GB partition to ext3(don't touch any other partitions!!), then boot again with fresh usb , I had old 6.1 1.02b before and went straight to 6.2 1.03b , select 2nd option on the bootloader screen , feed PAT file via browser and boom all your stuff is back even on JBOD setup!!

would this method also work with JBOD array?I have tried few times but no luck, fresh install and config on spare drive but once I remove the spare new hdd , after reboot it always comes back with RECOVER but this fails to show up after a reboot with the spare drive either connected and not connected. next I will try manually format small 2.3GB first partition on original array drives and reinstall from fresh USB loader