The engine needs good battery power, fuel, compression and spark to start and run. You are missing at least one of those.
What to do before starting auxiliary engine?
Every engine makes a sound when starting ... please be more specific.
Depends on the engine. A fuel injected engine will run the fuel pump to prime the engine. A diesel engine might have glow plugs run prior to starting. Some older heavy equipment engines had a gasoline pony engine to get the crankshaft turning prior to starting the engine.
Yes a blocked exhaust will keep the engine from starting
Since it is starting from 0, the engine idle is low.
it means starting of diesel engine
yes
Ignition.
No it will not.
see if starter is starting to go....
There is a chance of it, that engine has glow plugs, starting fluid can explode when the glow plugs come on causing engine damage. Before using starting fluid on this type engine, make sure glow plugs are not plugged in, and can not come on.
possibly a broken or missing engine mount