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Exploring Ethereum #1: Moving The Blockchain On Windows 10 Using Symlinks

I am currently experimenting a lot with a lot of different technologies, including Ethereum. In this series, we are exploring Ethereum and how to get started with mining on Windows 10

What Is Ethereum?

For those of you who don’t know what Ethereum is, it’s basically Bitcoin 2.0, only a lot more useful, smarter and faster. Big corporations like Deloitte, Samsung, IBM are all involved in some way and are actively researching the potential of this technology.

Enough said, find it out yourself at https://ethereum.org/

What Are Symlinks

Symlinks are symbolic links that can act as physical links to somewhere else on your drive. E.g. if you have a SSD that is running low on disk space and you want to download the Ethereum blockchain you will run into trouble unless you move the block chain folder and create a symbolic link pointing directly to its new location.

This is tested stuff, it works on both Unix and Windows in a similar way.

Creating Junction Point To Move Large Folders

We are using junction points for this. For the full details and explanation read this guide

Moving Ethereum Blockchain On Windows 10 Symlink.png

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1. Step First, open the Windows Explorer, go to C:\Users\Oliver\AppData\Roaming\Ethereum\ and move the blockchain folder to a drive with more disk space e.g. D:\

2. Step Now open an elevated command prompt and issue the following command. Make sure to replace Oliver with your own username:

mklink /J "C:\Users\Oliver\AppData\Roaming\Ethereum\blockchain" "D:\blockchain"

3. Step Done! You should now have a symbolic link pointing to your new blockchain folder. You can test that by going the Ethereum folder again and double-click on the blockchain folder with the arrow icon. If it redirects you the link is working. If it doesn’t, try again

What’s Next?

Next, start downloading the blockchain via geth. If you have downloaded geth as explained on ethereum.org, you will have a bat file on your desktop.

We’ll explore that further in another post. Happy downloading!

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Published: Saturday, August 15th, 2015 Last Modified: April 5, 2016

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