Getting error while Initialising the Blockchain

Question

/home/viveka/go-ethereum/build/bin/geth --datadir ~/ethereum/net3/ init genesis/genesis3.json

Fatal: Failed to read genesis file: open genesis/genesis3.json: no such file or directory

I am following the below Edureka tutorial:

https://www.youtube.com/watch?v=QCvL-DWcojc&t=3053s

58:27

I know this question has already been asked here but not been answered yet. #Issue in Initialising the Blockchain

Please help.

Roshni · Answer 1 · Sep 17, 2020

Best answer

Hello, @Edureka,

You have two options:

Execute with sudo. This will work for sure: sudo geth --datadir blokchain init genesis.json
There might be a problem with permission (chmod set incorrectly). Try setting it on the entire folder. sudo chmod -r 777 myFolderThatContainsEntireChain. This isn't the best solution but it may well be worth trying and see if it fixes your problem.

Otherwise it seems like geth can't find the genesis.json. Are you sure you are currently in the folder where your genesis.json resides? Furthermore make sure that the datadir folder exists as well (and with the correct path).

answered Sep 17, 2020 by Roshni
• 10,520 points
selected Sep 22, 2020 by Edureka

Hi Roshni, I have tried both the options but no success. I have recorded my screen [ https://youtu.be/QLwFijlg7u8 ] and I think you're right that I am not following the right path for the genesis file.

Can you please take a look at this video and let me know what would be the correct command to Initialising the Blockchain. Many Thanks!

commented Sep 17, 2020 by Edureka
• 200 points

Could you pleasse mention which geth version you are using?

commented Sep 18, 2020 by Roshni
• 10,520 points

Geth Version: 1.9.6 . It's unstable, do I need to downgrade this to stable one?

commented Sep 18, 2020 by Edureka
• 200 points

Hi,

I would suggest you go through this regarding the query, I hope it will be helpful for you https://www.edureka.co/community/32325/fatal-failed-genesis-edureka-privatechain-file-directory

If you get the same error again do revert here.

commented Sep 18, 2020 by Gitika
• 65,890 points

I have downgraded the geth version to the stable one and it's working now. Thanks for the help.

commented Sep 22, 2020 by Edureka
• 200 points

Glad to help you!!

commented Sep 22, 2020 by Gitika
• 65,890 points

Rajiv · Answer 2 · Sep 17, 2020

Hi, @Edureka,

If you want to create a private Ethereum network, you need to create your own genesis file with customized parameters suitable for you. This ensures that you're running your version of the blockchain. Not the public ethereum blockchain.