Fixing Ores from a map import.

[A Rubiks Master]

So, I recently replaced my vanilla minecraft server world into a new tekkit server. And after the headache that that caused, I finally get on to go mining and realized that none of the unique ores are in the ground or the gems, etc. And I understand, it generates a world, and when I generated it, it was in vanilla not tekkit, hence no ores. But I was wondering, is there a way to have it re-generate the ores/mines/everything underground? I have gone this far without cheating in the game and really want to work towards getting some of the end game items without cheating. It'd be nice to be able to build everything

TL;DR - Is there a command for the server or a way to make it re-generate all the underground minable stuff without losing all the work everyone has on the surface. Thanks.

[Backplague]

Doing so will require some effort, but what you need to do is to generate a completely new world and copy-pasting your stuff with MCedit to the new world.

[Sigelcraft]

Newly created chunks should get the new ores...so if you go far enough you'll eventually find some. But it may take quite a long time.

[A Rubiks Master]

But there is no way to re-generate some of the chunks and just "protect" some stuff like houses that were made.

[Sigelcraft]

Nope.

[A Rubiks Master]

Would you say it would probably be easier to just MCEdit everything over to a new area that we know has new chunks (when we find rubber trees and etc)? Then just move the spawn point to that place for new players (we have a few RL friends wanting to join soon)

[Sigelcraft]

If you're going to MCEdit it...you might aswell start a completly new map and edit your old stuff in it as Backplague suggested. At least you'll have a much easier time getting new stuff and the work you'll have to do will be the same.

[A Rubiks Master]

Ok, just double checking I'll be doing this correctly.

Start my current world, MCEdit Copy from two set points in the world. Then stop the server. Delete the world file, start the server again, allow it to generate a new world. Then use the paste command? I'm just surprised that the Tekkit world will keep the clipboard stuff from world to world is all.

[Sigelcraft]

First of all make a backup of your world!!

I haven't use MCEdit myself, but from what I gather: You create your new world map with tekkit, then completely stop the server. Then you open your old world with MCEdit, copy the part you want, open the new world with MCEdit, paste the copied part, and save.

[Phuriousgeorge]

You have two options, depending on your copy/paste size...

1. SMALL PASTE - If you want to copy while in-world, use WorldEdit to create a schematic file (see WorldEdit wiki if you aren't familiar). Then pull up your new world and insert the schematic.
   
2. BIG PASTE - Copy as stated above, then download and open your new world in MCEdit (external world editor) and paste the schematic in.
   

If you attempt to paste a large area while in-game, expect either the server to crash or to lock-up for quite awhile. Any large editing tasks is always prefered to be handled in MCEdit, not in-game.

EDIT:

Also, WorldEdit has an option to delete chunks while in-game and regenerate. You can attempt this, but BE SURE you have a backup before doing so. The newly re-generated chunks would use Tekkit's generator and include the new ores, but I've had issues with regenerating chunks and having really strange things happen throughout my world.