Been playing around for days and got it working on Unraid VM Xpenology. DSM 6.2.2, 3615xs 24922 (latest), 1.03b Jun's loader Step-by-step guide working for me: Create VM use CENTOS First scroll down make sure it's set to br0 Either copy MAC and edit synoboot.img , or edit MAC / SN after generation use OSFmount set time-out in synoboot.img to 10 secs Copy edited synoboot.img to wanted location and set permissions to 7777 Host Passtrough (i'm on i3-6100) Choose initial memo