How to get account with ethers by default in ethereum private network

Question

I am trying to create a private ethereum network. I have followed the steps of initialization after creating genesis block:

{
   "config": {
      "chainId": 12345,
      "homesteadBlock": 0,
      "eip155Block": 0,
      "eip158Block": 0,
      "byzantiumBlock": 0
   },
   "difficulty": "400",
   "gasLimit": "2000000",
   "alloc": {
      "38dsid27167d208c66584ece7f09d8bc8f8223nd": { 
          "balance": "100000000000000000000000" 
      }
   }
}

geth --datadir ./myDataDir init ./myGenesis.json

and started node:

geth --datadir ./myDataDir --networkid 1114

Now when I type this command to see ethers:

eth.getBalance(eth.coinbase)

It shows 0 ethers even if I have allocated ethers in genesis block.

Answer 1

Have you created an account before allocating ethers in Genesis file? Seems like you have not. First create an account using the following command:

geth --datadir ./datadir account new

This command will output an account ID. Use that ID in your genesis file to allocate ethers. Suppose your account ID is 38dsid27167d208c66584ece7f09d8bc8f8223nd, then your genesis block should be like this:

{
   "config": {
      "chainId": 12345,
      "homesteadBlock": 0,
      "eip155Block": 0,
      "eip158Block": 0,
      "byzantiumBlock": 0
   },
   "difficulty": "400",
   "gasLimit": "2000000",
   "alloc": {
      "38dsid27167d208c66584ece7f09d8bc8f8223nd": { 
          "balance": "100000000000000000000000" 
      }
   }
}