Upgrade custom build 1.4 to 2

[Hashut]

Hello
is it posible to make a simulation upgrade of custombuild from 1.4 to 2 because I have errors and therefore the server does not work so I am back on 1.4
if i can simulate the upgrade it allows me to rule it before doing this update
thank you

 

[zEitEr]

Hello,

You probably could clone your server and try it there (without sites /home/, without DBs /var/lib/mysql). Custombuild does not function to simulate anything.