Sometimes my OMV does not boot and then I need to attach a monitor to find out what is wrong. For several days I now tried to build a Live USB stick with SSH to use as an emergency boot medium.
It seems not to be so straightforward. Normal live systems do not persist changes. But to use it on a headless machine I need the live system to have SSH enabled. That's why I tried to make a persistant installation live system. This worked out but it is extremely slow. Maybe it's due to my slow stick.
I just wonder how do you cope with this? What is your emergency strategy if the server does not boot up?