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Possible Duplicate:
I don't like Hell, can I go somewhere else?

My server runs 1.8 - but the 1.9 update will introduce some nice new Nether features.

So is it possible to generate a new nether without generating a new world?

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marked as duplicate by Mark Trapp, C. Ross, Raven Dreamer Oct 8 '11 at 17:20

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1  
Bukkit or Vanilla – ProSay Oct 8 '11 at 16:18
up vote 14 down vote accepted

As far as I am aware, the nether is just another directory in your worlds directory called DIM-1. From what I understand, removing that subdirectory will remove your nether and force Minecraft to generate a new one upon visiting it (using the current terrain generator - this means you may get different Nethers across different versions of Minecraft if the terrain generator has changed between them).

But please do make a backup :)

Make sure Minecraft isn't running in the background while trying to make the changes to your DIM-1, because it won't work.

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8  
Backups, backups, backups. – GnomeSlice Oct 8 '11 at 16:45

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