What did you find when you used Google or contacted your local training establishments? Yes. there is training and yes there are docs - possibly only in-house but there may be public stuff which is where Gooogle comes in handy.
Did you, or any of your colleagues, go to a training institute? If anyone did, have you enquired of those institutes as to whether they have anything remotely resembling what you want. If not, then you will be stuck with reading what you can find and hoping that in a new job they give you sufficient training - they should, after all they are hiring you as a "know-nothing about system programming" person.