One thing I did notice though is last night it came up finished installation even though the bar was only at 95%.
I decided to try again with a different fresh 1TB hdd in , one thing I was reading over at
https://wiki.debian.org/InstallingDebianOn/Seagate/PersonalCloudis that it also mentions using a DTB file for you device. So decided to put the LS220 version on the boot folder along with the other two files. I did the install, but it never gave me those confusing different options and the install seemed to be differnet from that of the 1st attempt on the 500Gb drive which gave me different options. I got the Finish the Installation message, selected continue and then it started installing other stuff then it came up Finishing the Installation, but once again it ended at 95% followed by connection closed by myip.
On the partition bit cannot remember what option I used, but the option created, the partitions for me i.e boot, swap etc.
https://imgur.com/Kdv0ArGhttps://imgur.com/WgCsXymThe device rebooted and its not booting up lol, though I can still access the ls220d via ssh installer@myip
Would be great a see a full video of the install of Debian and how it looks running on the buffalo NAS.
Im going to give it another go anyway.