Using Mineshire
New world, Duplicate, Export, Repair: what each Mineshire button does
Open a server’s settings and you’ll find a handful of buttons that all sound like they copy or reset something. One of them deletes your world. The others are safe. It’s worth knowing which is which before you click.
New world: this one deletes
It builds a fresh world and throws the current one away. Mineshire says so in the dialog: the current world is deleted, except its datapacks, and the next start builds the new one.
You choose the land type and a seed. Leave the seed empty for a random one, or type one in. The same seed always builds the same land. There’s no undo, so take a backup first if there’s any doubt.
Duplicate: safe, makes a second server
Duplicate copies the world, settings and plugins into a new server with its own port. The original is left alone. It’s the right tool for trying a risky change, a new plugin set or a version upgrade, without risking the real thing.
The server has to be stopped first, so its files are copied in one piece.
Export as zip: safe, makes a file
Export packs the whole server folder into one zip, saved wherever you choose. A progress percentage shows while it works. Nothing is changed or removed.
Import puts a zip back into Mineshire later, which makes this the way to move a server to another computer or keep an extra copy somewhere else. Like Duplicate, it wants the server stopped.
Repair: safe, fixes the software
Repair downloads the server software files again and puts them back. Your world, settings, plugins and mods stay as they are. It’s meant for damaged or missing program files, not for a broken world.
There’s a Back up first switch in the dialog. It saves a full copy so you can put things back if something goes wrong. Some software is built on your computer and takes several minutes, and the server stays stopped meanwhile.
A quick way to choose
Want a different world? New world, and remember it deletes. Want to experiment without risk? Duplicate. Want a copy to keep or move? Export. Server won’t start and you suspect its files? Repair.
If you’re unsure, take a backup first. It costs a few minutes and removes the worry.